Pegasus2 Discussions

Pegasus 2 logic drive disappeared... possible 2 logical drives???

2026-04-04T06:59:24.8400000

Hi there,

I realised that i had a bunch of files disapear so ran some disc recorery software and found the files were still on the raid, but then I noticed that there looked like there were 2 logical drives?

I ve booted but not both logic drives seem to be offline, and 1 drive had a red light.

I replaced the drive with the red light, but no luck. unless the logic drive is solved it wont let me re build.

critcle events says "missing pd" but i cant find anything to do with missing pd on this site? log attatched.

Looking for Pegasus2 Firmware 5.04.0000.36

2025-12-11T16:32:37.6370000

Apple has declared all my Intel Macs that I connect my Pegasus2 units to are now "vintage" so I have turned to loading Linux on them to maintain security updates and keep the Macs and the Pegasus2 units from the eWaste graveyards.

I have 3 Pegasus2 units:

R8 - firmware 5.04.0000.36 - works with the Linux Kernel STEX driver

R8 - firmware 5.04.0000.64 - does not work reliably with the Linux kernel STEX driver

M4 - firmware 5.04.0000.62 - does not work reliably with the Linux kernel STEX driver

A few years ago I emailed Promise support asking for the 5.04.0000.36 firmware to be made available from the Promise Download Center in their Legacy Products section.

I went back and forth with the Promise tech, but he couldn't seem to grasp why I wanted to load an older firmware onto devices that had newer firmwares. In the end Promise never made the older firmware file available to me via the Download Center or any other mechanism.

So out of desperation, I am posting this to see if there is a community stalwart out there that has archived all their firmware upgrade files, and has a copy of firmware 5.04.0000.36 that could be made available to me.

In case no such stalwart community member exists out there, I will make another appeal to Promise to:

1) make the 5.04.0000.36 driver file available on the Download center, since it works with the latest (quite old) version of the Linux Kernel STEX driver

2) have a developer update the STEX kernel driver to work with the Pegasus2 5.04.0000.64 firmware, since that is the recommended firmware for the Pegasus2 units. I don't think its too much to ask that at least one of the available firmware files for the Pegasus2 be supported in the Linux Kernel STEX driver, if Promise won't make the old firmware file available. 5.04.0000.64 makes sense to be that version since it is currently the latest (and presumably last) version of the Pegasus2 firmware.

In my mind the simplest thing is for Promise to add the requested firmware file to the Download center - I mean what is the downside to that? If someone flashes their Pegasus2 with the old firmware, they can still flash it with the new firmware at a later date (say when they can afford an Apple Silicon Mac).

Pegasus2 R6 One disk has a red light

2025-12-27T20:37:56.9300000

On my ancient Pegasus2 R6 system, one of the disks has developed a red light.

I have completely forgot everything about system maintenance on this program.

I have just reinstalled the Promise Utility program (4.06.0000.04 (C04). But that seems to just run a program called Instruments. I vaguelly recollect a function to check the disk status on ths program.

How do I fix the red light issue?

Looking for an empty cage for R6

2026-03-13T13:42:45.0030000

Hi does anyone have an empty cage for an R6?

Logical drive has been set to critical

2026-03-10T21:01:04.3230000

Hi all, I have a solid orange light on the power button. Using the Promise utility, it is saying "Logical drive has been set to critical". is this recoverable?

i am backing up what I can before it dies.. not sure if things will be corrupted as they get pulled off.

Pegasus2 R8 + Mac mini M4, drive disconnects repeatedly

2025-10-28T16:39:26.6930000

Pegasus2 R8 + Mac mini M4 + Apple A1790 Thunderbolt 2 to 3 adapter: when Pegasus2 powers on, drives are mounted normally and I can access the data on the volumes. After waiting (or using the drives) for a while - usually 2-5 minutes - I get OS-level notifications there drives were unmounted abnormally. Similar issue has happened with both macOS Sequoia (initial OS that was installed on Mac mini M4) and macOS Tahoe.

Before Mac mini M4 I had Mac mini M1, and I was able to use Pegasus2 with the same adapter and cable without any issues for many years. I also have a Mac mini 2011, and Pegasus2 works perfectly without the adapter.

Promise Utility's Event log only shows "stopped by host unplug" as if the cable would have been disconnected, so it won't help much with debugging. macOS logs don't show any clear reason for ejection either.

Pegasus2 firmware is 5.04.0000.64 and I also have the latest DEXT driver installed on my Mac mini M4:

systemextensionsctl list | grep promise
com.promise.driverkit.pegasus (21.1.0/1) com.promise.driverkit.pegasus [activated enabled]

Any ideas what could be causing this behaviour or are you maybe having the same issue?

How long does a FW upgrade take?

2026-03-09T19:11:39.5730000

Promise utility suggested I upgrade my firmware from 5.04.0000.18 to 5.04.0000.64 on my R4. I've been on the "Please wait. Firmware update in progress..." screen for upwards of 30 minutes and all four drives are flashing activity non stop. Is this normal? If not, what do I do now?

Thanks

Tahoe updated - Pegasus 2 R6 NOT recognized on Mac M4

2025-10-26T12:26:49.1630000

Hi there, has anybody found how to troubleshoot this issue? My M4 MBP doesn't see the Pegasus 2R6, despite the all the updates downloaded from the promise site. Tks if you can help

Pegasus2 R4 orange power light and not mounting

2026-02-04T04:57:29.5930000

Hi all, I have the Pegasus2 R4 with 4x4TB HDD connected to a MacPro late 2013. My unit was having issues where it would randomly unmount and remount causing multiple "Your disk was not ejected properly" messages. Then several days ago the volume unmounted, the power button light turned orange, and could not be shut down via the, now, orange button. The thunderbolt light is lit and blue, the fan is spinning, all of the drives are showing blue and spinning up when powered/plugged in. Also, on occasion, it causes a kernel panic. The system report shows that it was caused by com.promise.driver.stex. There is no window in the Promise Utility app and all the menu items are greyed out.

Here's what I've tried so far:

Unplugged the unit, waited (up to 24hrs) and plugged it back in
Let it run for 24hrs to see if it would sort itself out
Removed the drives and start up
Tried changing ports both on the Mac and the unit
Checked system info - thunderbolt, and it was listed there, although it showed only as connected upstream
Disk utility
removed and reinstalled com.promise.driver.stex
removed and reinstalled the Promise Utility app
Removed power cable from UPS and tried directly in wall socket
Tried the promiseutil comand line interface (Error (0x4008): subsystem not found)
Fully cleaned dusted the unit
Tried different rebooting orders (mac then unit, etc)
Fully clean and dusted Mac
Reset the SMC
Reset the PRAM/NVRAM
Cleared caches on mac
Ran the maintainance scripts in terminal
Inserting the disks one at a time
Swearing at the unit and callling it names

Thanks in advance for any help or creative suggestions you all can send my way. All of my work is located on those drives and deadlines are looming. If there is something that I've missed (a hidden magic button I can poke with a paperclip would be great) or something I can point to and blame for this. Please let me know.

Cheers!

Pegasus 2 R4 - No longer starts up as expected

2025-11-29T11:05:09.0400000

Pegasus 2 R4 - was working fine until after unmounting and then physically disconnecting the unit from my Mac I noticed it did not go to sleep as expected.

Now when powering on from cold the fan starts up but I do not hear the expected disk chattering that shows the unit is coming to ready.

Unit shows in System Information as connected to Thunderbolt.
System Extension is loaded (com.promise.driverkit.pegasus (21.1.0/1))
promiseutil shows no subsystem available.
Unit does not respond to power button, power cable has to be removed.

This feels like a sudden hardware failure (for whatever reason) but if anyone has any suggestions on how to possibly revive it that would be most welcome.

Thanks.

Mac Studio M4 Max/macOS Tahoe 26.2/Apple Thunderbolt 3 Adaptor/Promise Thunderbolt 2 Cable

Pegasus 2 R4 8TB upgrade to 12TB (best drives?)

2024-12-02T14:46:58.3430000

Hello,

I've been using my Pegasus 2 R4 8TB (Raid0) for the last 10 years and it's been incredibly solid for everyday use. I'm a video editor and also use it to back up photos, home videos, etc.... I've only had 1 drive fail and did not lose any data that Im aware of. I don't want to press my luck and need to replace ASAP.

I'd like to upgrade the R4 to 12TB but it seems all the tested drives from the link below have all been discontinued. Has anyone recently upgraded using a newer SATA III 3.5 3TB HDD? Any suggestions to a drive that would be compatible? Do I need to stick to 3TB or can I drop a 4TB drive into the array and still have it function properly.

http://promise.com/DownloadFile.aspx?DownloadFileUID=4279

Could this drive work for my needs?
https://www.bhphotovideo.com/c/search?q=Seagate%203.5&filters=fct_capacity_844%3A3tb

Huge thanks in advance for any guidance.

Jeremy

Pegasus2 R6 not showing in Finder or Disk Utility

2026-01-22T15:22:12.7030000

Hi all,

I need some help here, asap, please.

I have two Pegasus2 R6 connected to my iMac for years without any issue until now. Both are configurated as RAID5 and have always worked fine.

But yesterday, one of them stopped showing in Finder so I can't access the very important data I have in it.

When I try to open Disk Utility, this app hangs on for a long time and nothing happens. Only once it oppenned but the missing drive is not there either.

But if I go to About this Mac>System report>Thunderbolt, the drive is there as usual.

Please keep in mind that I have two identical units daisy chained together and they have allways worked fine. Only one is not showing now.

Some added info:

iMac Retina 5K, end of 2015, 4 GHz Intel Core i7, Catalina

The drive starts up normaly as usual, tho short bips, all leds blue.

I have changed the order between then, disconnected the other one, changed thunderbolt cables, changed thunderbolt ports, tried with another mac, both with Catalina and Mojave, no sucess.

What could be the problem and what can I do to make it appear againg in Finder?

Thanks

Pegasus2 R4 Mounting Issues on MacOS 15.2

2025-01-08T05:13:26.1700000

I have a Pegasus2 R4 unit.

It works on my 2018 Macbook Pro, but not on my 2024 Macbook Air (M3, MacOS 15.2).

I am connecting it via a Thunderbolt 2 to Thunderbolt (USB type C) connector.

I followed the instructions published at https://kb.promise.com/thread/installing-the-macos-pegasus-dext-driver/

I ran systemextensionsctl list | grep pegasus which returned [activated enabled]

The drive mounts briefly and I can see the files. It unmounts after about 20 seconds.

While troubleshooting I noticed the Thunderbolt cable was very hot at the drive unit end. The drives remained lit up (blue) after the cable was disconnected and remained so until I removed power.

Pegasus2 R6 Thunderbolt - two drives offline

2026-01-28T02:33:45.5900000

Hello, I was working on an archived video project (approx 15TB). I had an r6 mounted and the footage was all there and available.

Then I unmounted the RAID. I inadvertently popped open two drive draws, forgetting the RAID was still powered on.

Here's the Promise utility screenshot.

As you may be able to see in the above screenshot, two drives are now "offline" and the RAID is degraded and unmountable.

I'm hoping all the data is still on those drives and I can reconstruct the RAID.

Is there a way to get the RAID back into a happy happy state?

If not, is there any hope for data recovery from a third party or is that folly?

Thank you for your thoughts, time and expertise. Bergen.

Pegasus 2 R8 - Need Help

2025-06-16T13:54:56.1330000

I have a Pegasus 2 R8 that I am trying to get data from. It disconnects consistently and has very slow copying that eventually bombs out - randomly reboots the whole machine.

Started with a Mac Mini M1 - had Sonoma as the OS - I was able to copy from it and write data to it without any problem. I updated the OS to Sequoia and that is when the problems started.
I updated the firmware to the most current.
I installed the Mac Silicon driver
I uninstalled the Mac Silicon driver and installed the standard Dext Driver.
I have gone back to the previous OS Sonoma and used the Promise Utility to make sure that the device or raid array didn't have any issues. (unit passes all tests)
I bought an old mac mini (intel chip) with monterey on it thinking I can use the old driver - but no luck.

Here is my question - what am I missing. Is there a utility that can tell me what is wrong. Can anybody advise?

Is the firmware causing the problem? Is there a firmware I should use for Monterey. Or is there a specific version of Mac Os and firmware combo that is the perfect set.

Pegasus 2 R8 does not work on Mac Studio M2 Utility

2026-01-09T19:46:34.9500000

Pegasus 2 R8 does not work on Mac Studio M2 Utility.with OS Tahoe but works on Mac Studio M1 Max.

I´m using the DEXT driver on both Macs. Anyone known with the problem with missing contact between Pegasus 2 R8 and Mac Studio M2 Utility.with OS Tahoe?

MAC Mini M1 - Promise Pegasus 2 R6 not visible

2026-01-06T14:42:59.6830000

Hello,

I have a Promise Pegasus 2 R6 connected to a Mac Mini M1 pro using the usb-c - thunderbolt 2 apple adapter.

The dext driver should installed correctly

% systemextensionsctl list | grep promise

* * 268CCUR4WN com.promise.driverkit.pegasus (21.1.0/1) com.promise.driverkit.pegasus [activated enabled]

but the promise is not mounted

% promiseutil

-------------------------------------------------------------

Promise Utility

Version: 4.06.0000.04 Build Date: Mar 28, 2022

-------------------------------------------------------------

List available RAID HBAs and Subsystems

Totally 0 HBA(s) and 0 Subsystem(s)

The thunderbolt cable and adapter is working because I tested it to connect my old Mac Pro with the M1 and it worked without any issue.

All the HD leds are blue, included the one related to the thunderbolt port.
The power led is orange

Could you help me pls?

Pegasus2 R6 forced in "Read Only Mode"

2025-12-14T16:48:53.3870000

I recently had an external SSD (Samsung T7) failure that caused several kernel panics on my MacBook Pro. During that time, macOS set my Pegasus RAID volume to read-only.

I’m using a Pegasus2 R6 connected via Thunderbolt to an Apple Silicon MacBook Pro (macOS 15.x). I checked the SMART logs for all drives and found that the disk in Slot 4 was still online but showed reallocated/unstable sectors, so I treated it as failing.

What I did:

Made a full backup of the Pegasus volume to an external HDD
Hot-swapped the drive in Slot 4 (without powering down the Pegasus)
Inserted a new identical drive, set it to Unconfigured and manually rebuilt the disk array
Rebuild finished successfully, redundancy check and currently running media patrol
In Promise Utility everything is green and all drives report as healthy

However, the RAID is still read-only in macOS, and on every boot I get a message that macOS tried to repair the volume, failed, and therefore mounted it read-only. Disk Utility First Aid on the Pegasus volume also still fails.

My questions:

Is there any Pegasus-side flag or state I need to clear to get out of read-only, or is this purely a filesystem issue on the macOS side now?
Given that I have a full backup: is the recommended / safest solution to delete the logical drive, recreate and reformat the array, then restore from backup?

Any guidance on the proper next step would be very much appreciated.

Pegasus2 R4 Compatible with macOS 26 Tahoe?

2025-09-24T06:56:38.5670000

I have a Pegasus2 R4 connected to a Mac Studio (M1 Ultra). The device is working great on macOS 15.7 (with the DEXT driver installed).

Does anyone know if this will continue to work with macOS 26 Tahoe?

R8 Not working after Rebuild and Restart

2025-12-02T14:46:53.0470000

Hello,

I replaced and rebuit a bad brive on my R8 Array. The rebuild was successful. When I restarted the Mac Pro, the Array doesn't mount and I get "The Disk you attached was not readable by this computer" error pop-ups for all 8 disks in the Array, with the options to Eject, Ignore or Initailize. I've also tried different Thunderbolt cables and connecting to another Mac.

The drives do show up in the Promise Utility App but the Disk Array and Logical Drive tabs show no configured drves/arrays.

Can anyone advise on what issue may be and is the data still present on the drives?

Thanks

Pegasus 2 crashes M4 Mac Studio upon waking from sleep

2025-04-21T21:39:20.7130000

After installing the DEXT driver and Promise Utility, my Pegasus 2 R6 works well. But once the computer goes to sleep with the RAID mounted and then tries to wake up, it crashes the Mac, forcing a restart. It has done this numerous times in the past two weeks. It doesn't seem to do this when the RAID is not attached.

It is a new Mac Studio M4 Max running Sequoia 15.4

Any advice to resolve this?

Thanks,

-Jim

Pegagus2 R4 with USB-3 or USB-C via d-adapter ?

2025-10-09T10:21:38.6430000

Hi,

Got a Pegasus 2 R4 that works fine, but has we change our server (MacOS to Synology NAS) we will not have any thunderbold (TB2) available, only USB-3.2.

Pegasus has been tested through an adaptator TB2 <> USB-C ?

Apple claim it adapter is both way :

https://www.apple.com/fr/shop/product/MYH93ZM/A/adaptateur-thunderbolt-3-usb-c-vers-thunderbolt-2

This has been discussed in 2017, the situation has change ?

Mac Mini M4 with macOS Tahoe and Pegasus2 R4 - will it work?

2025-10-03T18:15:36.8570000

I have a Mac Mini M4 with macOS Sequoia + Pegasus2 R4 on the Apple Thunderbolt adapter. All is working fine. I wish to update my macOS to Tahoe.

Will it work? Has anyone done the test on that configuration?

Pegasus 2R6 does not stay on with thunderbolt convertor.

2025-10-01T21:08:54.0400000

I recently got a new Mac book and it doesn't have any thunderbolt 2 ports on it. So I bought a third party convertor, USB-C to thunderbolt 2, to connect it to my Pegasus 2 R6. However now my Pegasus 2 does not stay on. It tries booting up, it beeps twice then the power light turns oragne and then turns off. I tried using both thunderbolt ports on the Pegasus but still it doesn't stay on.

I heard that I need an offical Apple brand convertor is that true? Is there a way to fix this or am I just unable to us my Pegasus with my new Mac book.

Upgraded firmware on Pegasus2 R6, now it won't mount

2025-08-29T00:18:41.3730000

I tried to upgrade my Pegasus2 R6 to the latest firmware, v5.04.0000.64. After restarting the computer the raid is visible in System Report but not in Promise Utility, Disky Utility or on the desktop. What could possibly be the issue?

Im sitting on a Intel Macbook Pro late 2019, macOS Catalina 10.15.4, and Promise Utility 4.06.0000.01

After update MacMini M1 2020 MacOS 15.5 to 15.6 my Pegasus2 R8 (8x 4TB not start correctly)

2025-08-12T11:25:40.9330000

after MacMini is restart the Bips coming 2x, but the Powerligt still orange and the Promise Utiliy hangs.

The Promise Utility have Version 4.06.0000.04 (C04)

The Firmware single Version is 5.04.0000.64

I think this is the actuell Firmware Version.

Please Help

Best regards Donald

Max Drive capacity on Pegasus2 R4

2025-08-08T12:47:36.7000000

Hey all

What would be the maximum size of a single drive used in the Pegasus2 R4? I am planning to upgrade to 4 20TB. Anyone using these sizes already and might have recommendation on which drive to buy?

Thanks in advance.

Pegasus 2 R8 not connecting to Promise utility

2025-07-28T20:55:05.5070000

I have an older MacPro 2013 running 12.7.6

I have two Pegasus 2 R8 arrays, one connects and works fine, the other shows up in system report on my mac but the Promise utility software does not see it. I have used the same port and the same thunderbolt cable that is working for one device but I am still having no luck with the second. Any thoughts or ideas?

edit:

promise utility 4.06.0000.04 (C04)

I am not sure the firmware on the R8 since I cannot get into it.

Can't mount Pegasus2 R6 on M4 with OS 15.5 (24F74)

2025-07-07T20:11:29.9300000

Hi Pegasus,

I need urgent help, I cannot mount my Pegasus2 R6 on my new MacBook Pro M4 with Sequia 15.5 (24F74).

I installed the Pegasus DEXT Driver and followed the instruction of the manual, but it does not work.

I use the Apple adapter A1790 for connection.

Please help me, what is the problem?

Thanks!

Reformatting R8 for AFPS

2025-06-26T12:11:44.8100000

Dear Brains, I have just migrated my system from iMac-2015 to Mac Mini M4. (Sequoia) It caused a number of issues some of which are sorted. However the files I store on the Pegasus 2 R8 now have a mixture of read write permissions under such listings as 'System', 'Wheel', 'Everyone' and more often than not a spinning wheel that reads 'Fetching'. Sometimes it also reads 'Admin 2 (Me)' which is not a user that exists. These are mainy image files.

Some images I can open and save seamlessly but others I cannot save. Soem I tried saving to my Desktop but when I dragged them to the files in the R8 and deleted them from the desktop they also deleted from the R8. Apple advise reformatting to AFPS which as far as I can tell will erase everything (all 26Tb of it) The work is backed up to external drives but it also seems usings Apple's Disk Utility means a Raid 5 set up with AFPS is not viable. (It was set up as a stripe with redundancy disk which I believe to be Raid 5) as well as a partition for Time Machine which is now no longer needed.

I use Lightroom to catalogue my work and have subdivided the R8 disks into sections 1A - 9A which I make basic mirrored back ups of on disks 1B - 9B via a hard drive enclosure using Chronosync.

Does anyone have suggetsions as to the best way to reformat the R8 disks to make them work with the Mac Mini? I was hoping not to erase them but cannot see another way.

I was thinking Softraid may be the way to go instead of Apple Disk Utility as I may be able to preserve the Raid 5 set up with AFPS or perhaps I just have to go for Raid 0 and rely on my mirrored back ups if there is an issue.

Thank You

Chris

Pegasus 2 R4 powers on, then switches off immediatelu

2025-04-23T18:14:09.5230000

Hello,

I bought a Pegasus 2 R4 'sold as seen' from an auction.

I've downloaded the manuals and am working through them. However, I've hit a snag which doesn't seem to be answered in the Troubleshooting section...

I've plugged the R4 into the mains, and switched it on with the front button. The unit switches on, there is a fan noise. The power button LED lights up orange. After about 10 seconds the LED goes blue for two seconds, briefly changes back to orange, then switches off.

It does this whether connected or not, and whether the drive trays are inserted or not.

I don't even know if the unit is functional, but would love to be able to use it!

Thanks for any help you can give!

Pegasus 2 R4 not mounting after Mac Os update.

2025-05-04T01:36:18.1830000

I updated my Mac Os to 15.4.1 and my (so far flawless) Pegasus 2 R4 is not mounting anymore,
I can see it on Disk Utility and it also shows on Promise Utility as ok.

I have reinstalled drivers, Reduced Security and All Kernel Extensions are Enabled.

Any ideas on how to proceed?

After Mistaken re-format, data recovery possible?

2017-06-21T17:06:28.6400000

On my older Pegasus R4 with 4 TB configured as RAID5, mistaken re-format with Mac Disk utility. Immediately began data recovery scan with Disk Drill, but partition info has not been recovered. are there any options to recover partition?

Pegasus2 doesn't show anymore after update driver and utility on Apple M1

2025-05-16T09:05:21.5000000

I had several minor problems with my Pegasus2 and decided to update both driver and Promise Utility.
The versions are DEXT V21.1.0 and Promise Utility 4.06.0000.01, as described in the support documents.

System setting shows that it has a Pegasus R2 connected under Thunderbolt/USB (see attachment), but there is no drive seen in the Disk Utility. Thunderbolt cables are OK, because I can see a LaCie drive that is wires to my Pegasus.

I haven't updated the firmwareversion yet.

Does anyone has any ideas how I can connect my Pegasus2 again?

Pegasus app http crashing, restarting computer

2025-05-05T19:18:22.2630000

I noticed that my P2R4 keeps restarting a few times in the day as of late. I dont really update that machine as it my dedicated machine to run the P2R4. Looking at crash reports via console.app I noticed its always the same daemon httpd inside the promise utility.

Path: /Applications/Promise Utility.app/Contents/Resources/apache2/bin/httpd

Responsible: Promise Utility [834]

I have already reinstalled the utility, but it still occurs. When this happens it also seems to crash a dedicated Mac Mini i7 running OS 12.6.7

Does anyone have any suggestions? Thanks in advance!

Old Pegasus 2 R6 Not mounting

2025-04-08T18:01:07.7370000

Hi, I have an old Raid on a new MBP but its not mounting. I did install the Pegasus Utilities. Nothing. Do I need to install another software for the newer macs to read this?

Thanks!
Dave

Setting up Pegasus2 R6 with M4 MacBook

2025-04-03T18:15:35.4800000

I'm about to install the Pegasus Thunderbolt DEXT Driver to enable using our Pegasus2 R6 wih a new MacBook Pro M4. The instructions found here: https://kb.promise.com/thread/connecting-pegasus1-and-pegasus2-to-m1-m2-m3-m4-mac-systems-using-a-thunderbolt-3-usb-c-to-thunderbolt-2-adapter/ look very thorough. Thanks for providing them.

Once done, will I still be able to use our current old MacPro if I need to, or will the new driver not work with the older MacPro?

How to rebuild disc array and logical drive

2018-06-01T20:12:18.0200000

I have a pegasus2 R6 12TB.

Drive 6 went bad and I replaced it. I now need to rebuild the Disk Array (degraded 12TB 0 byte enabled # of LDs 1) and the logical drive(critical 10TB raid5 strip 1 MB array of 0).

Reading speed too slow, recurrent sleep problems

2017-12-10T12:18:49.9270000

I have a pegasus2 R4 with 4 2TB hdd in RAID 5.

There were no problem using this product with my 2012 iMac. Recently I changed my 2012 iMac to 2017 iMac CTO (4.2 i7, 64GB ram, 1TB SSD)

After changing my system, pegasus2 shows 2 major problems.

1. Speed problem

Pegasus2 only shows write speed 300-400MB/s and read speed 150-200MB/s in blackmagic speed test. I connected pegasus2 via thunderbolt 3 to 2 adapter from apple. In iMac 2012 with thunderbolt 2 it showed write speed with 600-700MB/s, and read speed with 400-500MB/s. I updated my pegasus utility, firmware, and Mac OS driver with most recent ones, but it doesn't fix the problem.

2. Sleep problem

Pegasus2 sleeps after iMac sleep but automatically awakes after 1min (iMac is still in sleep). It keeps going to sleep and awake repeatedly all night long even if iMac is in sleep state. Also after this situation, if I awake the iMac, promise utilty won't work.

In the uploaded image, you can see the sleep and awake problem captured from promise utility.

I even made my enery saver from Mac OS, and uncheked the box "Put hard disks to sleep when possible", and also unchecked network awake & power nap activiation, but it still goes to sleep and automactically awakes.

I really want to know how to solve this 2 problems, because it's very annoying.

Any one else have similar problems?

Pegasus2 R4 has RAID5 and the read and write speed is only 200M

2025-04-02T06:32:17.6170000

Pegasus2 R4 has RAID5 and the read and write speed is only 200M

Can I replace my HDDs in my Pegasus2 R4 with SATA SSDs?

2025-03-31T20:03:26.4970000

Can I replace my spinning HDDs in my Pegasus2 R4 with 2.5" SATA SSDs from a vender like OWC (Other World Computing)? I would then start to the use most of the Thunderbolt 2, 20Mbs bandwith?

Write Permission only after drive rebuild

2025-03-05T00:10:18.6170000

I have just replaced and rebuilt a faulty drive in my R8 RAID. All seems to be back to normal except I can no longer write to the drive. When I look at the Sharing and Permissions info it looks like I should be able to Read & Write, but I cannot physically copy files to the drive any more. Any suggestions or help would be most appreciated.

Pegasus 2 R4 deleted videos and photos

2025-03-04T05:09:48.9230000

HI folks, i have accidentally deleted wrong folders which contains photos and videos. I have not copied anything new into the RAID 5 Pegasus 2 R4. How do i go about retrieving any of those back. I know there are thrid party softwares out there, but is that the right way to proceed? is there a recycle bin or some sort within Pegasus that can be looked at and retrieved? Please assist. Thank you.

Adding a new disk to already created array.

2025-02-28T15:19:16.7470000

I have an R8 where I was using 5 drive bays in Raid 5. I want to add another disk to the array but I can't seem to find a way without deleting all of my data. Does anyone know the way to go about this?

R8 drive suddenly very slow. Error message says some data can't be read or written.

2025-02-16T14:36:11.0370000

My Pegasus 2 R8 has been working for 10 years without any issues. But today, as I was copying data to a backup drive, the file transfers suddenly started creeping along or crapping out with error messages saying 'some data can't be read or written.' I assume one of the drives has failed, so I have submitted a tech support case to Promise along with the service report -see attached- but as my RAID is no longer covered by the warranty, I am wondering what my options are.

Obviously, I'd like to get the drive working again, but more importantly, I need to copy all the data on the drive.

Has anyone else had a similar experience? Any advice/assistance would be greatly appreciated.

Thanks

Nick

Pegasus2 R4 no longer mounting after 2 days use with new synchronised Raid5

2025-02-04T18:09:32.7900000

I replaced all 4 original Toshiba 2TB HDDs with Seagate 4TB Ironwolf Pro, setup as array, Raid5 with 1 logical drive, total 12TB usable. Synchronization took about 20 hours, then I started using it with no problem, editing 4k video, 650MB/s read and write approx. It operated fine from both an M1 Mac Studio and M2 Macbook Air. Then I shut down, moved the drive, reconnected and it no longer mounts, however the Promise Utility sees it fine and says there's no problem.

OSX Disk Utility shows an external drive called "Promise Pegasus2 R4 Media", but says it's "Uninitialized", so it cannot be read, or ejected, and disk first aid takes about 3 seconds and completes fine.

The drives were formatted as APFS.

I've tried connecting on a Mac Studio M1 running Ventura 13.6.7, a Macbook Air M2 running Ventura 13.5 (both with all appropriate Promise drivers installed, and it worked on both for about 36 hours), plus an Intel based core i7 Imac.

I've tried putting the original 2TB drives back in and they're no problem at all. They mount straight away in their 1 logical drive Raid5 configuration. The old Toshiba drives are dated from March 2014, they're surely getting near the end-of-life, and there's not enough capacity for me.

So I put the new drives back in again and it won't mount - Uninitialized.

I've attached a subsystem report. Please help.

Cheers

Kristi

R6 Raid has a minor drive issue but crashing my computer

2025-01-31T14:27:08.7730000

I have a a drive thats about to fail, did not fail yet, the utility app from Promise still shows all drive in green. However, I get constant messages that minor read issues are occurig. How can I find out what drive is about to fail and replace it?

Drives from Older Pegasus R2 RAID enclosure in a newer Promise P3WBR4 enclosure

2025-01-31T09:15:56.6000000

I'm looking at a newer Promise P3WBR4 4 Bay Diskless Thunderbolt3 RAID available now. What would happen if one transplanted drives from an older Pegasus R2 Thunderbolt 2 RAID enclosure to this new enclosure?

The data is old and not very important.

But would the data be readable in this new enclosure or would one need to format the drives and treat this set as a new set?

P.S. This new unit has a part code F29PWR420000000

Neil

Pegasus2 R6 not working

2025-01-19T19:46:33.3670000

Hi,

Promise Pegasus2 R6 drive stopped to be available on computers.

With the drives in it promise utility doesn't recognize the pegasus2.

If i remove all drives then pegasus2 is available. I try to hot plug all the 6 drives but same promise utility hangs and pegasus2 was not available.

I've removed again the drives and tried to do a firmware update of pegasus2. it was 05.04.0000.27 or 05.04.0000.37 can't remember and i try to upgrade to 05.04.0000.56. But i get a message update failed and the update progress bar was still 0%

I powered off the pegasus2 and now it doesn't want to power on. I hear the fan but the power button doesn't turn blue , red or orange.

Support case is open but waiting for the answer so i came here to see if there is a chance i can get my data back.

Buying a new pegasus2 can be an option.
Please advise and i hope there is a small chance to get my datas

Thanks

Get Offline drives Online again

2024-12-18T11:46:07.0330000

A colleague of mine became very curious about my Promise Pegasus2 R4 and found out on his own that it was possible to release it´s hard drives while the device was still on. This caused the disks to go into Offline Mode.

To change the four hard drives in Pegasus2 back to Online Mode again, I could not use the latest version of Promise Utilities that I had installed on the Mac. This the latest version of Promise Utilities, lacked commad line tools(CLI-features) which I found out was needed to get the drives Online again. When I typed: promiseutil in the Macs terminal application, it answered with "Command not found". I had to go to: https://www.promise.com/Support/downloadcenter and look for an installer for an older version of Promise Utilities that also contained the Promise CLI tools. I went for a version 4 because I had seen one used it with CLI commands on one of kb.promise.com´s pages. When I installed this older version of Promise Utilities, the promiseutil showed up at ones when I typed "promiseutil" i the Macs Terminal application:

user@My-MacBook-Pro ~ % promiseutil

-------------------------------------------------------------

Promise Utility

Version: 4.04.0000.40 Build Date: Feb 26, 2020

-------------------------------------------------------------

List available RAID HBAs and Subsystems

===============================================================================

Type # Model Alias WWN Seq

===============================================================================

hba 1 * Pegasus2 R4 2000-0001-5557-8cdc 1

Totally 1 HBA(s) and 0 Subsystem(s)

-------------------------------------------------------------

The row with '*' sign refers the current working HBA/Subsystem path

To change the current HBA/Subsystem path, you may use the following command:

spath -a chgpath -t hba|subsys -p <path #>.

Type help or ? to display all the available commands

-------------------------------------------------------------

cliib>

Now to get all four hard drives in the Pegasus2 R4 raid Online again, I had to type the followig line, one time for each drive and change the number to 2, 3, 4 and press Enter(return) each time to confirm the action to the Pegasus2 R4:

phydrv –a online –p 1

A fast way to do this is to type the line over ones, press Enter(return) and then press the Up-arrow on the keyboard(to repeat last command), change the number and press Enter(return) and repeat this.

I believe that if you have more that four drives i the Pegasus2 R4 raid, the process will be the same.

I great thanks to Nazar at Promise Technical Support for bringing us this great solution to a stressful situation. If you don´t know about Promise Technical Support, as I did not, you can get supreme and fast support at https://support.promise.com

Promise Utility crash, Automatic Rebuild running over a week after failed drive replacement.

2024-12-05T19:15:17.7730000

Pegasus2 R8 had failed drive. Downloaded latest Promise Utility and launched app, it connected/mounted drive. Ejected failed drive, then as soon as I inserted the new drive (HGST compatible) the Promise Utility crashed. Relaunched Promise Utility, it was unable to connect to Pegasus2.

Although I never selected the "Automatic Rebuild" preference, the rebuild seemed to have started in the background. Then the entire OS froze (macOS Monterey) and the computer became unusable so I have no status or feedback from the Pegasus.

The power button is orange. All disk LEDs are blue, and disk activity LEDs are flashing. The Pegasus has been in this state for over a week. There was about 16TB of data on the volume, but I think the rebuild should have finished by now. I'm reluctant to just pull the A/C power from the Pegasus while there still seems to be disk activity.

Any advice? If I power cycle the drive, will the rebuild start over, or will all data be lost on the volume? If I restart the computer (hard re-boot) will it interupt the rebuild process and power to the Pegasus unit? Not sure how to proceed. Appreciate any insight. Thanks.

Pegasus 2 R4 (Thunderbolt 2) into Mac Studio M2

2024-11-09T16:54:36.3570000

Is there a solution to connecting the P2R4 to a Mac Studio M2? Apple Adapters do not work. Is there a frirmware or software upgrade and what is the entire step by step process. Thank you.

80TB sync times

2018-06-16T12:22:22.8470000

Swapped out 3TB drives for Seagate 10TB in my R8 set to RAID6. Sync is running at 1%/hour. Sync resources set to high. Anyone else have experience w 80TB? My other 8x4 R2 took about a day to complete, at this rate the 80TB will be done in over 3 days.

Do I need to initialize after sync complete?

Problem with Promise Pegasus 2R 8 / Finder doesnt shows Promise Pegasus

2018-06-05T23:42:16.7730000

So, heres the thing.

Yesterday I was moving some files from a HDD to my Pegasus as a backup, but then I stopped the transfer on the Finder because i needed to leave.

Cancelling the transfer was taking too long, and i decided to shut down mi Mac Pro manually.

Today, Finder does not show Promise Pegasus anymore, even though I can see it on the system report.

I need to access my info so bad.

R4 can not find slot 3

2018-05-29T07:46:20.1730000

Hi,

I've a big issue with my R4.

My R4 can not connect to PC two days ago, and drive activity LED of slot 3 was dark.

then i replace a new disk to slot 3.

after that, the utility tells me can not rebuild because "There is no PD of adequate capacity".

i don`t know how to do now, please help me!

here are some pics

How to order a new drive tray

2018-05-24T22:23:24.8370000

I have a failed drive. I have the replacement drive. I can (easily) get the tray out of the R6. But I CANNOT remove the 4 screws that hold the failed drive to the tray. They won't budge. It's like they were tightened with a machine.

So I need to order a new tray. I'm NOT in warranty. I can't find a repair parts location or someone to call.

Please help. Thank you.

Pegasus r8 backup

2018-05-23T08:54:07.7400000

Hi.

We have mac mini server and pegasus2 r8 connected to it and the drive is shared with multiple pc.

He have a total 8 TB file size on our pegasus. I am looking to back up our files from the Peogasus. Any suggestions please?

Connecting Pegasus 2 to a new Windows system

2018-05-23T08:42:56.6830000

We are contemplating making a switch from Mac OS to a Windows based system in some of our edit suites. One of the final puzzles I need to solve, is the possibility of thunderbolt 2 and 3. We have several Promise Pegasus 2 R6 and R8 units already in possession (so this is thunderbolt 2), we love the product and obviously would like to continue using these, even on the Windows machines.

I've been researching thunderbolt motherboards and PCI-E cards and found some information about what I likely will need. We are planning on building X299 platforms with the following board which has a thunderbolt header:

https://www.asus.com/uk/Motherboards/ROG-RAMPAGE-VI-EXTREME/

And we are planning on buying a PCI-E card like this, the first of which is very difficult to find though:

https://www.asus.com/us/Motherboard-Accessory/ThunderboltEX_II/

https://www.asus.com/us/Motherboard-Accessory/ThunderboltEX-3/

So to those that have some experience using Pegasus and thunderbolt with Windows or to those of Promise Technology, these are the questions I currently have:

- If I do happen to find the EX2 PCI-E card (thunderbolt 2 expansion card), will our Pegasus 2 units work directly on the card (if they are formatted correctly ofcourse)?

- If I can only buy the EX3 PCI-E card (thunderbolt 3 expansion card), can I use some type of adapter from TB2 to TB3 to make our Pegasus 2 work? Are there any adapters recommended?

- If we buy Pegasus 3 units in the future, can they work on the EX3 PCI-E card?

I'm hoping to find a good solution here!

Kind regards,

Merlin

Correct replacement disk for Pegasus 2 R6

2018-05-22T17:56:04.7070000

A disk on my RAID array has been taken off-line with a high failure rate. I'm unable to dump the SMART log for that drive because the applicaiton crashes.

I need to replace the disk. Do I have to use the precise same drive? What are the kinds of drives I can use?

Utility crashes when trying to Save Service Report

2018-05-18T18:47:01.7030000

Every time I attempt to Save Service Report the Promise Utility crashes.

I am using a Pegasus2 R4, Mac Pro 2013 "trashcan" with MacOS (10.13.4) and have latest Promise firmware (5.04.0000.61) and latest Promise Utility (4.02.0000.10). The R4 file system is Mac OS Extended (journaled). I even reinstalled the latest firmware and utility just to be sure. Have tried rebooting entire system and tried removing power to the R4.

The reason I am trying to save service report is because I have seen 10 instances of "Command times out on physical disk" in the past 2 months. It is rarely the same disk. Each of the 4 disks have generated at least 2 of these errors but, it is always one disk at a time. No SMART errors. Disks are the original 2TB Toshiba (DT01ACA2) that came with the unit from Promise.

Any ideas?

Help R6 not mounting after latest 10.13.4 OS High Sierra Update

2018-05-10T23:35:28.9170000

Hello,

We have a week old Promise R6 that came with the new Mac Pro and after updating to the latest OS the R6 has not been mounting. The lighting icon under the power button is lighted white.

We tried using other ports as well as a apple thunderbolt cable but it will still not mount, also when we open the promise ultitly this is the only one that comes out.

How do I handle this? Thanks :)

Documentation on Event ID 0x000D011

2018-05-11T23:36:03.9870000

I am looking for any info on the event ID 0x000D011, how to address it.

thanks!

washing 2018 Mac Book Pro

2018-05-08T16:31:02.9930000

Hi I can't get the Pegasus 2 to mount on my new MBP

High Sierra 10.13.4

using thunderbolt 3 to thunderbolt 2 adapter

Downloaded latest utility and driver.

drive shows in finder, but no data.

Utility crashes after opening.

attampting to open drive by clicking on it crashes system.

Bad Hard Drive - Help!

2018-05-04T22:37:28.1800000

I have a 4 HD system. One of my hard drives has a red light. Is there a link as to how to change the drive? And after I do that will all my files still be there? Or do I need to do additional steps? Sorry if I sound ignorant.

Unmounted Pegasus Promise 2 R4 with unresponsive ORANGE power button, will now not turn on at all.

2018-04-27T14:51:45.3800000

Having just returned from a brief vacation, I powered up my iMac and immediately installed a macOS update, to High Sierra 10.13.4.

On restarting iMac (Retina 5K, 4Ghz Intel Core17), Pegasus Promise 2 R4 failed to mount. The power button was illuminated ORANGE and all drives were solid blue but the unit would not power down, or respond in any way. I had not noticed if this was alreaday the case before installing the OS update but both Mac and Pegasus had been off during my absence.

I then installed Promise Utility 'R_Promise_Utility_402000010', allowed the extension under Security & Privacy and rebooted. The Pegasus unit would stiill not mount and the Promise Utility showed nothing, no window or cofiguration options.

At this point, I submitted the issue to Support Center and I am still awaiting response.

Elswhere in these user forums, I then found the following advice given to others experiencing the same problem:

- Shutdown the pegasus using the power button

- If it's not working unplug the power cable

- Mark and Remove all the drives from the unit

- Turn ON the unit without the drives

- Open Promise Utility

- Click subsystem information icon on the top of the window

- Click the lock symbol on the left bottom corner of the screen to unlock the utility

- Click on save service report button to save the subsystem report.

I attempted to follow this advice but having powered down the iMac, removed power cable and drives from the Pegasus unit, then rebooted the Mac, the unit would not turn on at all, either automatically, or by depressing the power button.

All connections have been checked, alternate thunderbolt ports tried at both ends, iMac rebooted several times, with and without drives replaced (always in the correct order) but the unit will no longer power up.

I am therefore unable either to use the Promise Utility or generate a service report, as suggested in the advice.

If the Pegasus unit itself is faulty but all drives are intact and in good working order, can I purchase a replacement 4 bay unit, insert the four drives and procede as normal?

All of my work, documents, records and data are on those 4 2TB drives and I am unable to work or function without access to them and am uncertain as to what to do next.

I have received no response to my Support Center query and given up on Promise telephone support after holding over 30 minutes for an engineer to become available.

I desperately need to get back to work. Any advice will be gratefully received.

Thank you,

Mario

Cannot Launch Promise Utility (apache server), please change the port with the user menu?

2018-04-30T16:27:28.1970000

Hello:

I have a (3) servers with a Promise Pegasus 2 R6 and R4 running Mac 10.9.5 with Promise Utility 4.02.0000.10, but one displays the following error message when trying to launch Promise Utility and the others work fine. This started happening recently.

"Cannot Launch Promise Utility (apache server), please change the port with the user menu?"

I have tried uninstalling and reinstalling the application, updating the firmware via command line and still running into this issue, but only on this one setup, but not the others.

Any suggestions?

Orange light on the power button and unresponsive

2017-08-01T03:49:40.6700000

My Pegasus2 R4 unmounted and the power button turned oragne. Im using OsSierra and the promise utility doenst show any interface window. The view and windows options are grey.

I cant turn on or mount the pegasus and the utility is not working on my Sierra.

Any ideas?

Cheers

lost all 4, 1tb drives on my promise Pegasus2 M4 now what?

2018-04-22T19:20:10.7430000

i bought (4) new 1 tb Toshiba drives the manual is not easy to read for me.

do i format? and set the raid to 5.

it is not clear

Pegasus2 R6 Shutting down

2018-04-19T22:48:04.6170000

I have a Pegasus2 R6 that shuts itself off after about 5 to 10 minutes. I tried removing all drives, start it up and it still shuts down after a few minutes. Is there a fix for the problem?

my Pegasus R4 2 will not mount - how do I start a case report

2018-04-19T10:28:53.8630000

my Pegasus R4 2 will not mount - how do I start a case report

this did this once before and in TERMINAL I typed promiseutil then typed phydrv -a online -p 1 and it fixed it

this wont work now

any help appreciated - or how do I sencd my subsystem report to get some help

my Pegasus R4 2 will not mount - how do I start a case report

2018-04-19T10:28:55.1030000

my Pegasus R4 2 will not mount - how do I start a case report

this did this once before and in TERMINAL I typed promiseutil then typed phydrv -a online -p 1 and it fixed it

this wont work now

any help appreciated - or how do I sencd my subsystem report to get some help

Physical disk is marked as dead due to removal

2018-04-17T11:52:30.7970000

Hi, I accidently removed first disc and it's showing red light all the time, and i can see message from Promis utility app "physical disk is marked as dead due to removal"

Is there any way to fix it?

Promise Pegasus 2 R4 - Can't Delete/Format Logical Volume

2018-04-10T23:09:43.0600000

Hello:

I have a new installation of Promise Pegasus 2 R4 6TB with RAID 5 created one logic drive then synced some data and then the volume stopped mounting. I tried repairing the volume with Disk Utility and DiskWarrior, but nothing could fix it. Since I had a backup of the data, I wanted start over, but I get errors trying to delete or format the logical drive like…

fail: Failed to delete logic drive. At least one volume cannot be unmounted

I tried forcing it to unmount with the following diskutil command…

diskutil umountDisk force disk4
Forced unmount of disk4 failed: at least one volume could not be unmounted

This is the output for diskutil list

/dev/disk4
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *6.0 TB     disk4
   1:                        EFI EFI                     209.7 MB   disk4s1
   2:                  Apple_HFS rserver                 6.0 TB     disk4s2

Any suggestions?

Pegasus 2R4 switches on and off constantly

2018-04-02T15:02:12.7000000

My Pegasus repeatedly starts up and shuts down every 5 minutes when my Mac is in sleep mode. I have tried unticking background activities in my Mac settings. Is there a background activity setting I can alter on the Pegasus?

Mike.

Disk array disappeared Pegasus2 R4

2018-04-05T12:00:52.3530000

So, after doing a minor system upgrade (Mac OS 10.13.4) this morning, the disk array on my Pegasus2 R4 has gone missing.

When the Pegasus has started up, Finder says 'The disk you inserted was not readable by this computer'. Promise Utlitity can see the physical drives, but says there are no configured disk arrays in the subsystem. All the physical drives are green in Utility, but have changed configuration to PassThru.

Any ideas?

Does Pegasus Promise 2 R6 support 10TB HDDs?

2017-05-13T22:17:57.8770000

I would like to buy few Seagate IronWolf 10 TB, ST10000VN004, interne Festplatte, 8,9 cm (3,5 Zoll), 256 MB Cache, 7200 RPM, SATA 6Gb/s

disks will my Pegasus Raid system support it or wont it be able to read such big disks? And if not what is the max TB size it supports? What happen if i try to insert a 10TB disk?

thanks

New iMac, new Pegasus2 R6, High Sierra 10.13.3

2018-03-31T20:44:38.5230000

New Toys for Easter weekend, but plug and play failed. R6 initialized on plug in (10 hours). No icon on desktop but appears in Disk Utility as ‘uninitialized’. Re ran initialisation process from Promise Utility (another 10 hours) in case of error but still same end result. Mac sees R6 in disc utility but says it’s not initialized and partition button is grayed out. What to do?

Virus Scan For Pegasus R26

2018-03-29T13:58:15.2000000

How do I virus/trojan scan the contents of my Pegasus R26?

Pegasus2 R8 won't mount; Promise Utility gives no options

2018-03-26T20:19:19.4630000

My R8 won't mount. When I launch Utility, it gives me no options to do anything except look at general preferences, check for updates (I'm up to date), or quit. Disk 5 has a red light; the other 7 are all blue all the way down.

I am able to see the drive via the system information window, but that does me no good if I can't access anything.

I'm on a late 2013 iMac, running MacOS 10.12.6

Any help, guys?

Pegasus2 R6 command times out on psychical disk, box unresponsive to shutdown

2018-03-23T22:54:45.4900000

Since nov. 16 in 2017 I have experienced 5 instances of this, labelled "Minor". Unit gives of some irregular beeps then seems to continue, but unit is not found by promise utility and connection to my iMac 27"-5K seems lost. On rebooting iMac the (3 logical) drives are gone! Still unit shows blue led for drives. Yet the poverswitch is not blue! pressing the switch to power it down is nonresponsive. only way to get unit back is to remove powercord, wait and then replug it. Very inconvenient and not very promissing for future. I use drive for backup and timemachine. my Live data is at a separate Pegasus2 R4, which works ok.

the last 2 times this happened it was PD 2 that caused it. I am worried that the system has an internal controller error, since only removing the power will return it to 'working' condition.

Mediapatrol has not found any error on disks.

please advise if/how I can test further

kind regards

Palle Jensen

Pegasus2 R6 not mounted on OS X 10.9.5

2018-03-17T10:27:09.3970000

I have a problem with my storage Pegasus2 R6 - NOT mounted on OS X 10.9.5

He works propertly five years, but now not mounted.

Creating a new array with larger drives

2018-03-13T23:57:40.6670000

I have a Pegasus 2 R6 with 4 TB drives. I’m not concerned with the contents of the current array, but want to create a new array using compatible 6 TB drives. This sounds simple, but what are the steps to do this properly?

thanks

2nd drive fail while replacing 1st drive - logical drive placed offline - possible data loss

2018-03-11T08:49:52.4800000

I have a Pegasus 2 R8. While replacing a drive that had a failed I accidentally opened the drive above it and it failed in the process. I have replaced the first drive.

I have 8x 6Terabyte drives installed.

The event information is saying the logical drive has been placed offline. Possible data loss.

The disk array says its degraded and when I click on Rebuild it says the logical drive is offline.

Not sure where to proceed from here.

Pegasus 2 R4 - HardDrive Failure(s)

2018-03-05T17:55:53.0370000

Our Media dept purchased 2 x Pegasus 2 R4 3 years ago which have been linked up to MacPros.

One unit has been used frequently in the past 12months the second unit now and again.

The first unit more importantly, 2 of the drives have failed ( Red light on front of drive bay) and the drive(s) are not mounting either normally or through disc utility.

I do realise the units are out of warranty, but am looking for some assistance to recover the data on the drive(s) if i can.

thanks

WebPam for Pegasus 2 R8

2018-03-03T19:41:51.8770000

I'm looking for the WebPam Utility (Mac and Windows Version) in the Download Center, but cannot find it.

I just bought a Pegasus 2 R8 and need to format the drives.

Pegasus2 R8 10TB Drive compatibility

2018-03-02T00:28:29.3770000

Has anyone has success using 10 tb Seagate Ironwolf drives with the Pegasus2 R8?

On the compatibility list it states "Drives are listed in which systems they were tested in and shipped with. Drive SHOULD work in all systems but are untested in some models"

Wanted to know if anyone has had success with using these drives on the r8?

Upgrading Pegasus2 2r+ with SSD

2018-02-25T00:40:55.9670000

Can I replace drives with SSD's? Are their drive carriages that can be purchased?

Thanks

Converting Pegasus2 from RAID 5 to JBOD

2018-02-16T06:20:28.8470000

I cannot find information on how to convert my Pegasus2 from Raid 5 to JBOD. Could someone outline the steps or point me towards a source containing the steps?

I want to convert the Pegasus2 to other purposes and have already backed its data up to a Pegasus3.

Thank you.

repeatedly disconnection from Mac mini and freezing Pegasus2 R6

2018-02-23T05:30:01.5800000

OSX 10.13.3

Mac Mini Late 2014

When it connect to the MacMini, it works well, but recently it always disconnected and the Pegasus hangs.

The power light remains blue and power button is irresponsive. I have to unplug the power and reconnect it.

but the issue repeating after 30 mins of use, and then hangs again.

It;s on my working server mac mini and caused great inconvinience.

Cheer

Pegasus R2 4 drive

2018-02-22T22:09:29.9630000

I have friend with a pegasus r2 with 4 drives. Something happend and the UPS and the Pegasus both wont stay on.

the pegaus plugged directly into an oultet

will not power /stay power on more then an instan is the description given to me.

The device is 2 years out of warranty and I wonder if they can jsut pop the drives into any 4 bay hardware raid?

They were mirrord drives.

thanks,

ben

Pegasus 2R4 can't be seen/not mounting after upgrading to Sierra 10.12.3

2017-02-05T16:53:43.2230000

drive firmware upgraded with last available release R_SI_504000057

checked Promise Utility.app update, OK

drive is no more mounting and can't even be seen on my iMac running Sierra 10.12.3

issue seems specific to that last Sierra release

see: https://discussions.apple.com/thread/7788697?start=0&tstart=0

thanks for your suport

Replace failed drive with different manufacturer

2018-02-21T06:17:50.9700000

Hi.

I have a failed ST4000DM000 in a Pegasus2 R8. Can I safely replace it with a Toshiba MD04ACA400 as per this link:

https://www.scorptec.com.au/product/Hard-Drives-&-SSDs/HDD-3.5-Drives/54861-MD04ACA400

with the rest of the drives being ST4000DM000?

Many thanks

Eject error with Pegasus2 and iMac Pro

2018-02-12T14:44:12.9370000

Hi,

I recently got an iMac Pro. I've had a Pegasus2 for a while, connected to my old computer (a Mac Pro) and it's worked perfectly. However, with the new iMac Pro, it's not working as well.

The issue is that every time I wake the Mac from sleep, I see a bunch of errors on screen regarding the ejection of the array. Here's what it looks like:

https://imgur.com/a/ix7Iy (I've also attached the same file)

What is causing this and how can I solve the problem?

Thanks.

Replacing drives on a Pegasus2

2018-02-10T14:53:48.3830000

Is there a way to replace drives on a Pegasus2 R6 without destroying and rebuilding the array? I have an R6 that is a couple of years old and I am considering purchasing new drives. Does the process of switching drives change if the new drive size is larger than the old?

Thanks

Need a driver for OS X?

2018-02-10T14:48:12.9900000

Hello,

I recently got a new Macintosh and come to the Promise web site to get the utility software for my Pegasus2 R6. I also noticed that there's a driver for OS X. What is the benefit of the driver? I used my Pegasus2 on my old Macintosh for a couple of years without any driver support so I'm wondering it's necessary or beneficial.

Thanks

Seagate Barracuda 4TB 3.5" ST4000DM004

2018-02-09T13:27:47.8870000

It is hard to find new Seagate Barracuda 4TB 3.5" ST4000DM000 Harddrives. Is the new ST4000DM004 version

compatible with a Pegasus2 R8?

Bad sectors - Disk Failure?

2018-02-08T15:46:53.8970000

Got my hands on a used Pegasus2 R6 with 6x3 TB Segate Baracuda drives. I set it up for RAID 5. While going through the process it came up with bad sectors on a few of the disk. Does this indicate the disks are going to fail?

Can it be fixed?

Step-by-step instruction to fully uninstall all Pegasus related software from a Macintosh

2018-02-08T19:39:31.7200000

Please provide a list of instructions of how and where to delete all Pegasus related files (Drivers, extensions, utilties, etc.) from a Macintosh.

I do not want to have any software from Promise/Pegasus on my machine using memory, CPU cycles, etc.

Thanks.

My promise pegasus 2 R4 Firmware refresh failed

2018-02-07T13:11:18.0770000

My promise pegasus 2 R4 Firmware refresh failed and cannot be turned on now. How do I get it to write the right firmware? Rework.

All the indicators on the front panel are not bright.

The power button cannot work.

Only the power part small fan can turn.

There is a blue light on the internal motherboard.

I removed the main board from a normal working Pegasus 2 4R and replaced the failed device with the firmware. After the replacement, it worked normally.

Make a preliminary judgment on the failure on the motherboard. It should be the failure of the refresh firmware to affect the normal operation of the chip.

Command times out on physical disk/Physical Disk has been reset

2016-09-27T18:12:59.2770000

Getting these errors repeatedly in the log, and array is going dog slow.

A couple of questions. I assume this means the disk ought be replaced ASAP... and do I need to leave it in the drive until the new disk arrives? Will removing it temporarily so it doesn't attempt to keep working with it speed the system up in the interim?

I ask that because for all intents and purposes as it stands we're completely down until the new drive arrives tomorrow, and then the rebuild process (another 6ish hour procedure) following that.

This is on a Pegasus2 R4