Thunderbolt™ Pegasus Family Discussions

Pegasus power supply replacement

2026-01-29T18:45:13.9030000

For anyone experiencing a power supply failure in their Pegasus - as I did in my Pegasus32 R4 - after a lot of looking I was able to find yesterday a replacement via eBay from KDM Power in Houston. The unit arived today, install took 10 minutes, and my system is up and running again.

Here is a link to the unit; I found the people at KDM to be very knowledgable, responsive, and helpful:

https://www.ebay.com/itm/336158204663

I have no relationship with KDM aside from being a happy, and relieved, customer.

Two Pegasus RAIDS on one Mac?

2026-01-06T19:28:50.0770000

Hello,

I have a Mac and a Pegasus2 that are both around 10 years old.

If I purchase a new Pegasus32 can I plug it into the Mac and move all the files over from the old Pegasus2 to the new Pegasus32?

thanks

need both pegasus and pegasuspro drivers? which ones?

2026-01-04T01:38:49.3270000

I have a mix of 3 Pegasus2 R8, 2 Pegasus3 R8, and 1 Pegasus R12 volumes hanging off my Mac Studio. I have both com.promise.driverkit.pegasus.dext version 21.1.0 and com.promise.driverkit.pegasuspro.dext version 22.1.7 installed. The pegasus version at least used to be required for the Pegasus2 and Pegasus3 drives and is the latest version in the Downloads > Drivers section for those models. I believe when I installed the Pegasus 5 it required the pegasuspro driver and (I think) it shipped with this driver version. Disturbingly, the Pegasus R12 is not represented anywhere in Current Products and the Pegasus5 R12 lists no drivers. And the latest Pegasus Pro driver listed is 22.0.2. My 22.1.7 isn't listed anywhere I could find from the GUI, though it is findable using Google's site: functionality.

My main question is: Do I really require both pegasus and pegasuspro drivers? Note that the older Promise Utility.app shows only the Pegasus2 and Pegasus3 drives, not the R12, whereas the PROMISE Utility Pro.app shows all of the drives.

My secondary question is: How can I determine the latest driver for the Pegasus R12 and where can I download it? Despite being just barely over 1 year old Promise seems to have abandoned it for the Pegasus5 R12. (Yeah, I wish I'd waited.)

The motivation for investigating this is that one of my Pegasus2 drives has been dropping offline suddenly, for no reason I can discern, and I thought maybe, just maybe having two promise drivers could cause some issues.

Pegasus 32 will not mount after upgrading to MacOS 26.2 for M1 iMac

2025-12-21T20:53:04.6630000

I had MacOS 26 and 26.1 and the Pegasus32 was working perfectly. I just upgraded two nights to 26.2 and now the Pegasus will not mount.

I ran the terminal command - systemextensionsctl list | grep promise and get driver 21.1.0 and says its activated and waiting for user.

I checked system information and I can see Pegasus32 under Thunderbolt USB bus 0 and says device is connected. I go to disc utility and nothing. I wanted to downgrade back to 26.1 but guess what, all my backups are on the promise array so I can only see the last 24 hours which is all 26.2. Please help as not only do I not have backups but I also have over 4 terabytes of videos and pictures that I cannot access.

I have restarted 3 times. I have manually shut down and unplugged unit and waited a few minutes and then restarted, still nothing. I have plugged and unplugged the thunderbolt cable, which from above I know is working since it can be found. Also based on your download page I know I have latest version of Promise Pro Utility and would assume I have latest version of drivers installed as I have a M1 iMac as I stated, it was working with 26.0 and 26.1. But I have not tried to uninstall or reinstall drivers yet.

Please help?!?

can't mount Promise Pegasus drive that was working

2025-11-13T22:33:22.8330000

I installed some drivers from the Promise site and just cant mount the Pegasus 3 drive on my M3 Ultra Mac Studio, I can mount SSD drives, USB drives but not the thunderbolt drive. The drive mounts on other macs. Something in installed is messing things up--have tried to uninstall and delete a bunch of files in Terminal and re-install, no luck, I have only one mac that will not mount any HDD based thunderbolt drive, I know my cables are ok, etc. Have booted up in safe mode, etc...I can't see the drive in promise utility, anyone else deal with this?? thanks. It was working and I messed it up installing something.

Pegasus Util crashing entire M1 Studio

2025-07-26T19:34:10.4300000

Utility crashing entire OS.
One drive failed in the array. I never got a warning from the Utility, despite being set to the lowest setting for warnings. I just happened to notice that one drive light was red.

I replaced the drive as usual, and it powered up as expected and was seen by the computer in System Report, but Promise Utility would launch with all menu options were grayed out, and the main interface window never appeared. Utility indicated all software and firmware was up to date.

I tried re-installing the utility, and since then, every time I launch the utility, it crashes the entire machine. Partial report from Console.app below.

After an entire day of tryng everything I could think of (reinstalling the utility, driver and DEXT DriverKit file, etc) I was finally able to get the RAID volume to mount... I have no idea how or why, but I'm cloning it off to a competitor's RAID immediately.

_________________

Details: M1 Studio (2022)

Pegasus R4. (I had migrated to a Peg32 until it totally died, right after sending it to Promise just before the warranty expired. I had demonstrated that it was an inconsistent problem, but they said that nothing was wrong. This response came so quickly that it's pretty clear they just plugged it in once, it mounted, and they diagnosed "user error" instead of doing a proper test on it, knowing that if they delayed the repair, it would go out of warranty. It continued to unmount and/or refuse to mount and/or refuse to restart without unplugging the power cord. Very quickly after that, out of warranty, it totally died and will not power up at all, but I'm too disgusted by the lack of support to even repair it. Well over a decade of owning & recommending Promise products, and now every time I walk into an edit suite and see one, I recommend changing to another brand as fast as they can.)

OS 12.6.3 Monterey

Utility v 4.06.0000.04

"Check for updates" indicated that software and firmware are up to date.

Crash log:

Process: PerfPowerServices [1297]

Path: /usr/libexec/PerfPowerServices

Identifier: PerfPowerServices

Version: ???

Code Type: ARM-64 (Native)

Parent Process: launchd [1]

User ID: 0

Date/Time: 2025-07-25 15:13:24.4779 -0400

OS Version: macOS 12.6.3 (21G419)

Report Version: 12

Anonymous UUID: 77D8F92A-112B-523D-50D2-F8B9005D42EB

Time Awake Since Boot: 1000 seconds

System Integrity Protection: enabled

Crashed Thread: 2 Dispatch queue: com.apple.root.user-initiated-qos

Exception Type: EXC_CRASH (SIGABRT)

Exception Codes: 0x0000000000000000, 0x0000000000000000

Exception Note: EXC_CORPSE_NOTIFY

__________________

Thread 2 Crashed:: Dispatch queue: com.apple.root.user-initiated-qos

0 libsystem_kernel.dylib 0x19772ed98 __pthread_kill + 8

1 libsystem_pthread.dylib 0x197763ee0 pthread_kill + 288

2 libsystem_c.dylib 0x19769e340 abort + 168

3 libc++abi.dylib 0x19771eb18 abort_message + 132

4 libc++abi.dylib 0x19770ea54 demangling_terminate_handler() + 336

5 libobjc.A.dylib 0x197604320 _objc_terminate() + 144

6 libc++abi.dylib 0x19771deb4 std::__terminate(void (*)()) + 20

7 libc++abi.dylib 0x19771de50 std::terminate() + 64

8 libdispatch.dylib 0x1975a0288 _dispatch_client_callout4 + 40

9 libdispatch.dylib 0x1975bc53c _dispatch_mach_msg_invoke + 464

10 libdispatch.dylib 0x1975a7784 _dispatch_lane_serial_drain + 376

11 libdispatch.dylib 0x1975bd25c _dispatch_mach_invoke + 456

12 libdispatch.dylib 0x1975b2c98 _dispatch_workloop_worker_thread + 648

13 libsystem_pthread.dylib 0x197760360 _pthread_wqthread + 288

14 libsystem_pthread.dylib 0x19775f080 start_wqthread + 8

Can't set Configuration Status on refurbished Pegasus R6

2025-04-18T16:54:32.1500000

Hello,

I just bought and received a refurbished Pegasus R6 - directly from Promise

It came without drives, so I used the drives from my ond Pegasus 2 R6, after erasing them with Mac Disk Utility.

They have all been inserted and all of the lights are blue. All of the physical drives show up appropriately in Promise Utility.

When I go to set their configuration status to "Unconfigured", I am unable to click EITHER unconfigured or Passthru.

The lock in the lower left hand corner is open.

I am using Promise Utility 4.06.0000.01 (C02).

I am completely flumoxed. Any assistance woudl be much appreciated.

Also, I plugged it in and the Mac said that the device could not be read and asked if I wanted to initialize it. Thought about it and opend the disk utility, but the drive doesn't show up.

Any assistance would be greatly appreciated.

Transfer array from Pegasus32 R6 to R4 when R6 is suddenly failing

2025-04-16T06:15:31.0530000

Hi,

I'm currently having the Pegasus32 R4, but I'm thinking to add an R6 to the setup.

Questions:

- I would like to use the R6 as the main RAID, where one disk array of 4 disks is having both RAID 5 and RAID 6 logical drives. Having 1 pass through drive as a backup disk for the Mac, having 1 spare drive for migrations or as a hot spare. Now my question, if one day the R6 would fail, would it be possible to swap out the 4-disk array and plug them inside the R4, hoping to keep the RAID 5 and RAID 6 fully operational again and this immediately? I know that this is normally possible using the transport feature, but I'm not sure if the transport is not planned due to a failure if this would work, especially considering two different Pegasus32's? Are there any restrictions or preconditions to make this work? Like having to use the upper or lower 4 trays? Related to this, maybe a technical question, where does the Pegasys32 gets its configuration from, is that stored on the disks too?

- In that setup I would connect the R6 directly to the Mac, and the R4 connected to the R6. I would use the R4 as an additional offline backup. Question, can I keep the R4 unpowered all the time, so the 230V unplugged from the mains, but keeping the Thunderbolt cable connected to the R6? Will that do any harm to the Thunderbolt ingterfaces electrically, since power is on those cables for for example charging? It's because I've tried using the software power down feature of the R4, but the R4 seems not to remember its power state when the main is completely removed? So the only way is to cut the mains myself, but then I'm wondering if this is healthy in a prolonged way for the Thunderbolt interfaces?

- Last simple question, I'm assuming that a disk drive in pass through, if one day is put into any other enclosure, would still look the same to my Mac? So a pass through drive is 100% transparent?

Trying to make/define a fail save system...

Thanks in advance!

Kind regards,

Ignace.

Any updated news on the Pegasus M8 RAID storage with Thunderbolt™ 5

2024-11-17T23:46:46.7030000

Hello,

Now that Apple Macs have Thunderbolt™ 5, I am seriously considering getting the Pegasus M8 instead of the Pegasus R12.

I think a YouTube video from NAB 2024 said that the Pegasus M8 would be released in late 2024, but I think that was optimistic, considering the release date of the Pegasus R12.

Is there any updated information about the release date and pricing for the Pegasus M8?

Thanks!

Dennis

MacPro R4i to Mac Studio R12 Migration

2025-04-02T20:53:23.0200000

I am moving from a 2019 MacPro with a Pegasus R4i, to a Mac Studio with a Pegasus R12. I'm trying to figure out if there is a way to move the data directly from the R4i to the R12.

I haven't been able to mount the R12 to the old 2019 Mac Pro. The device appears in System Information -> Thunderbolt/USB4 to either Thundrebolt Bus, but never appears in Disk Utility.

If I target the 2019 MacPro to the new Mac Studio, I can mount that internal Macintosh HD, but don't see the Pegasus R4i.

Currently, I'm planning on using a clone I maintain of the R4i to shuttle the data over. Hoping there is a way to go directly though.

*The R12 mounts just fine to the Mac Studio. Pool 1 finished synchronizing yesterday. Raid 60, 1 spare.

Advised macOS driver install for Pegasus Promis R6

2025-03-26T12:23:00.6070000

Hi,

I'm in the process of newly installing macOS on a couple of 2018 mac mini's.
I chose to do a new install to completely get rid of old stuff and settings that might cause trouble.

I have one system that has Ventura 13.7.2 at the moment, and another one that has Monterey (where I chose to do an internet restore, exactly to see what would be the macOS version that Apple would send to the mini)
Purpose is to at least upgrade the Monterey one to a more recent macOS version.

On both 2018 mini's I have a Pegasus Promise R6 connected using thunderbolt, and the Apple thunderbolt converter cable thingie's.

Question:
1. Do I need to install drivers for the Pegasus R6?
2. If the Promise utility is installed, does it automatically install the / a driver too?
3. What version of driver would be recommended for these older Pegasus R6? (Possibly a link?)

The reason why I have doubts:
- on the Ventura system the Promise utility is installed
- on the Monterey system the Promise utility is not (yet) installed
=> both systems "see" / mount the Pegasus R6
=> on both systems I have regular messages like: Disk not ejected properly. Eject "Pegasus R6" before disconnecting or turning it off.

For clarity:
- neither of the 2 mac mini's nor the Promise Pegasus R6 are turned off
So I gather it may have to do with (default) power saving settings?

Pegasus32 - Use “Pegasus32 Series Utility” or “Promise Utility Pro” software?

2025-03-17T18:52:21.0030000

Dear,

Is there any advice on which of the software tools to use for the Pagasus32 R4?

Is the Promise Utility Pro software offering all settings you can do with the Pegasus32 Series Utility? Any advantages using one or the other, or any limitations?

Thanks!

Kind regards,

Ignace.

macOS Legacy System Extension Warning

2025-03-15T14:01:16.5970000

Hi there, I've been getting numerous warnings for the past year that the Promise Mac system extension is a "Legacy Extension" that will stop working in future versions of macOS. I assume there's a new extension in the works. Is there any news or ETA for its release?

Pegasus32 with Apple Thunderbolt 4 Pro Active Cable 1.8m

2025-02-27T07:01:12.9430000

Hi,

I saw in the knowledge base a post by Babatunde Akinkuolie about preferable not using an active Thunderbolt 3 cable on the Pegasus32 since it will reduce the speed.

What about the Apple Thunderbolt 4 Pro cable of 1.8 meter, which is also an active cable?

I also don't understand why an active 3 cable would reduce the speed to 10 Gbps?

Thanks for any help or information!

Kind regards,

Ignace.

SSD with Pegasus R12

2025-02-11T11:07:19.3070000

Hi,

I am preparing a Raid 5 storage for a movie and I was planning on using HDDs mixed with one SSD. Do you have references as to what brand I could use that you have already tested?

The point was to use the SSD as a fast unload tool while keeping the cost low with HDDs on a pegasus r12.

Thank you.

Regards.

firmware upgrade Pegasus R6

2025-02-06T14:31:11.2930000

Hi,

I own a couple of 2nd hand Promis Pegasus, two R6 and one R4. I've had my experiences with them, so I have learned to touch them as little as possible ;-)

However one of the R6's has a firmware of 5.04.0000.36 while the other has 5.04.0000.61.
The older firmaware version is more noisy and regularly gives a beep (not shure why or when, but may have something to do with Ventura going to sleep or snooze)

The R6 with 5.04.0000.61 is still running Catalina. And on that more recent firmware, the fans run quieter and I don't have the beeping.

Therefore I would like to update the firmware on the 5.04.0000.36 one.
Now I posted on this forum before, but it seems my posts have vanished (? at least I can't seem to find them anymore, but I still have the past mails warning me that there were answers..) I seem to remember that in previous posts I was given the advise to use the Pegasus2 files, but not sure about that.

Long story short:
Could someone please point me to what firmware I should install best?
- I have downloaded the 5.04.0000.61 firmware but Promise Utility says there is a CRC checksum error?
- on Catalina I have Promise utility v 4.04.0000.48 (c04)
- on Ventura I have Promise utility v 4.06.0000.04 (c04)

Thanks a lot for helping out!

Pegasus R4 now not mounting after 2 days of use.

2016-08-05T16:10:48.7200000

Have had our R4 up and running for 2 days. During those 2 days I loaded it up with files from other drives. During an upload from an external drive the R4 disconnected. Now it will not mount and I recieve an error saying "The disk you inserted was not readable by this computer." However, inside of the Promise Utility I can see the drives and see that nothing is out of the ordenary. I have tried new thunderbolt cables. Again, everything was working great this morning. All lights are blue on the box.

**When I noticed the change today I had just plugged in our XDcam reader and downloaded it's software. I'm afraid that this may have taken over the volume.

Updated: 1139am

I opened up OS Disk Utility. Pegasus shows up as an external. However, it is not capturing any information about the data. See Screen Shot. Options under DU is Frist Aid, Erase, and Info (infor screen shot in attachements).

Updated: 12:50

Spoke with Chris at support. Went through our Pegasus and found that things were working on that side of things.

Please help.

Firmware version 5.04.0000.57

I am running on:

iMac 3.4GHz i7

16g of memory

OSX El Capitan 10.11.6

SAS Harddrives

2025-01-21T15:37:45.7330000

hello all...

as i own a pegasus1 r6 for almost a year now, i never run it in raid modes, just as a drive enclosure for some of my data disks. among them, a 14tb seagate exos x16 SATA spinner, which served me always fine.

i came across an offer of 10x 14tb wd ultrastar hc530 SAS drives for a really recent price and got 3 of them to have a testrun.

to test everything with an SAS drive before the order arrive, i asked a friend who have an old 600gb sas 12gbit drive which he never used anymore.

the test went successfully and the 600gb drive was just recognized and usable, so no problem with the larger drives?

as they arrived, the ultrastar SAS drives werent recognized at first, after a shutdown of the pegasus, the where listet but just on of the 1,75gb platter inside of the drive was found but not useable.

as it cannot rely on the drive size (the 14tb seagate exos SATA was always fully available), i thought its maybe the controller which can't handle SCSI-6 commands (but why the 600gb drive?).

i decide to get a pegasus2 r4 and test the drives in this enclosure, same result...

couraged with the known exos SATA drives, i got another pair, which i found also almost as cheap as the ultrastar SAS drives and they worked that perfect, that i ordered another two for a total of 5 drives.

they are happily sync now for almost 30h at 35% with a total capacity of 42tb in a raid5 with one spare drive.

but the reason for my post is: does anybody have a clue, why the known good ultrastar SAS drives are not fully compatible with the pegasus1/2 ?

Pegasus R6 fan problem

2016-06-09T14:15:36.0730000

Since upgrading my firmware to version 5.04.0000.57 this week, my Pegasus R6 has become incredibly noisy. It seems like the fans are going full speed all the time now. I tried downgrading to version 56, but I'm still having this issue.

Is there any way to manually control the fan speed?

PP32 R8 Raid10 - single Logical Drive with multiple partitions, or multiple LD

2024-12-15T02:23:07.7800000

After the ongoing inabilty to determine accurate size allocations, and the LV being formatted as APFS, I bit the bullet and spent a couple of days moving data off the Pegasus to available/newly aquired for the process devices

- barrel of fun

updated firmware

created new array

first created x5 LV, and formatted each under DiskUtility as Mac OS Extended (journaled), GUID partition map

thought about this for a bit, then thought to try one LV with multiple partitions

deleted and created new array

created one LV

created x5 partitions on that one LV

Both approaches create x5 mounted volumes, which is a bit of a pain re the resultant desktop clutter

So given the Pegasus is used for deep/archival storage and defacto backup, my question is, is there any overall advantage to either

1) one LV with multiple partitions

2) multiple LV, one patition

I'm thinking one LV with multiple partitions has some advantage when doing backups with CarbonCopyCloner, and searches... as the index will be smaller ( targeting one smaller volume/partition) rather than one much bigger single LV index

I see the effect of smaller indexes daily - a particular directory of 200,000 first level folders each names as a UUID value, doing a find, or a get info, on that takes forever (evevn on my mac mini m4 pro) . The archival content, going back years, hardly ever gets hit.

general thinking is more smaller is more manageble

leave the RaId to the Pegasus, leave the file management to the file system ( aka partition)

Either way, pity about all those mount points

Pegasus32 R8 how to determine free space

2024-12-12T14:25:29.3330000

Hi,

Mac mini M4 pro Sequoa 15.1.1

32 TB in Raid10, have been scrubbing/trasnferring to other extenal storage/deleting for a couple of days, yet OS Get Info, and terminal diskutil list

both claim only 440GB free space. I know I have deleted c.2.5 TB

have tried disconnecting, restart...

Pegasus32 logs itself out almost immediately

2024-12-03T15:48:08.9170000

mac min M4 pro Sequioa 15.1.1

turn the P32 on

generic icon mounts on desktop

double click to open

window has no content

volume auto ejects

message - disk not ejected properly

tried restarting mac...

P3 R4 not powering on after a year in storage

2024-12-07T18:34:13.9900000

Hello. After being in storage during a house build for a year, I am unable to get my P3R4 to power on. It was boxed up and handled carefully during the move. I have tried four different USBC cables and tried it on both my MAC and PC. One cable shows my macbook is getting charging power through the cable so the P3 is getting power but will not power on - no light at all. I've tried unplugging and replugging in numerout times. Any suggestions??

Recover Logical Drive Pegasus R4 After Power Cut

2024-12-02T08:16:45.9370000

I have an old but trusted Pegasus R4. I had a power cut overnight and the Promise Utility shows that my logical drive has been placed offline. Is there anyway to recover this as I have a lot of data on it?

new mac mini M4, Pegasus32 - no load

2024-11-16T05:09:02.3300000

new mac mini M4Pro Sequoia 15.1

Pegasus DEXT Driver V21.1.0-2

installed

Pegasus DEXT Driver Installer.app in Applications

launching installer.cpp raises dialoge :awaiting approval. ... enable ...driver extension in P/S...

THERE is no such pending approval in Privacy and Securitiy

pegasus32 will not mount

Promise 2 R8 Drive not recognized on MacBook Pro

2024-11-15T20:33:09.5430000

Hi,
Really hoping someone can help. I have a Promise 2 R8 drive with 8 years of my career backed up on it and I cannot access it now. I had to purchase a new MacBook pro (running OS 12.1) recently when my old one crashed. The new MacBook only has USB -C ports it for plugging in drives. I purchased the Thunderbolt 2 to Thunderbotl 3 adapter from Apple so that I could plug the Promise 2 into the computer. When plugged in, the drive powers up and remains on, but never appears as a recognied drive. I have installed the driver I found on the promise website (MacDrv_V6.2.9) and can see it installed in my extensions. I know that the drive is still working as I plugged a friend older Macbook in and it mounted immediately. But I am completely stumped here. The Promise Utility App does not recognize it either. Any advice would be a huge blessing. Thank you.

Pegasus J4 crashes MacOS Sierra

2016-09-21T03:37:12.6530000

I just upgraded to Sierra and now I kernel panic (stack trace right back to the promise pegausus J4 driver) when I book if the J4 is connected.

I have seen responses to El Cap questions just brushing this off as an EOL product, but it's only 3 years old! Not to mention, it wasn't cheap.

I'm hoping that there is some chance someone either plans to fix the driver or knows a workaround.

Pegasus J4 MacOS High Sierra

2017-10-02T10:15:50.8870000

Hello, i'd like to know if it's possible upgrade the OS without any issue...like the last Sierra... or old OS upgrade.

Thanks

Maximum hard drive size for Pegasus

2016-09-23T06:33:45.4600000

I have a Pegasus R6 with 6x6 TB drives i.e. 36 TB. It works perfect. But what is the maximum size for Pegasus R6 and Pegasus R8 (and Pegasus2-series)?

Changing R8 from RAID5 to RAID10

2018-04-20T15:08:07.0900000

Hello, Is there a step by step anywhere of how to change the 32TB (28TB) Pegasus R8, which default is RAID5, into RAID 10?

I am on a Mac, and can't seem to find a solution. When I try to change it using the Migration feature in the Promise Utility, it only gives me an option for RAID0 or RAID5.

Ultimatly, I am looking to have the unit create a backup of itself. I don't need 28TB, I would perfer 14TB and 14TB, and know the data has an auto backup for saftey.

Promise Pegasus R6 - Drive issue - Hard Drive question

2018-01-02T19:38:27.5630000

It looks like I need to get a new spare for my R6. I can see all the data from 5 of the 6 drives. It seems I have not lost anything but I apparently have some problems with drive 6. Now I understand this process, I swap the drive out and rebuild the array so I continue to have stability at the same or higher level RAID. Right now I'm at RAID 05. I currently have 2TB drives, this was a 2013 or 2014 purchase. So I'm wondering if I can buy bigger drives now and swap them out over time. First I swap the spare, number 6, the bad one now, to say a 4TB or 6TB drive then I eventually match what ever I get and swap those out one at a time. Will this work? I do have all the data backed up to LTO or on our Shared storage so I could simply wipe the drive and get larger drives. It seems like swapping drives one at a time would be better in case I do need immediate access to any data.

Thanks.

Pegasus R6 not mounting

2017-03-02T23:27:46.9370000

I have a first generation R6 that stopped mounting without warning. After talking with various reps I was told it's because of the firmware in the unit and that it's no longer supported so Promise can't help me. I'm desperate to get my files back. I understand I can get a Pegasus2 and put the old drives in there, but before I do that, is there anything else that can be done that won't cost me thousands of dollars?

Pegasus3 R6 turned itself on??

2018-03-15T06:46:04.3430000

I've had a Pegasus3 R6 for five days, and it's been working well so far.

Last night, I shut my Mac off and went to bed, which powered the R6 off as usual. When I woke up the next day, the R6 had turned itself on and was showing a red power light. Or it might have been orange, I was freaked out so I didn't pay close enough attention. The fans were spinning but no HD activity. I powered my Mac up and the R6 turned blue and all the disks mounted fine. The utility status says everything is fine, and the events panel shows no report of the unit powering up in the middle of the night.

Why would the unit turn itself on when the computer is off? I was thinking maybe a power surge, but the R6 and my Mac are both connected to a UPS.

Is this something I should be concerned with?

Pegasus R4 can not be mounted/not displayed

2018-02-22T13:33:31.1230000

Hi all

since upgrading from OSX 10.12.6 to OSX 10.13.3, the kernel extension PromiseSTEX.kext does not load on booting my MacPro. When using the trick below (from another thread), I can manually load the extension and bring my Pegasus R4 back online.

Unfortunaly, when my MacPro goes to sleep, the kernel extension again gets lost, and therefore also my Pegasus R4 gets lost.

I'm running my Pegasus R4 with the latest firmware 5.04.0000.61 and the Promise Util with 4.02.0000.10

My subsystem details can be found here (can not attach the file..)

www.corneliusfischer.ch/transfer/subsysteminfo.html

I'm desperately looking for help to solve this issue, as I can't work like that.

Thanks for any adivse in permanently solving my issue.
Cornelius

Hi Philippe,

Have you tried loading the kernel extension?
sudo kextload /Library/Extensions/PromiseSTEX.kext
Then you can verify in the Terminal by querying the bundle ID:
kextstat | grep com.promise.driver.stex
The output should be:
47 0 0xffffff7f80f73000 0xb000 0xb000 com.promise.driver.stex (5.2.10) D5918F4B-6516-32DF-855F-E4CBE26067CD <46 12 5 4 3>
If you get the above, that means you loaded it successfully. You should also refresh System Information after you've done the above. You should see that the PromiseSTEX is loaded.

kextload man page
kextstat man page

Regards,

Phil

Pegasus R3

2017-01-06T17:37:49.3670000

I currently have a Pegasus R6 using the original thudnerbolt 1 connection. I am thinking about upgrading my MBP to take advantage of Thunderbolt 3 and purchasing a new Pegasus3 R6 or R8. Some questions I have regarding the technology are related to throughput. I understand that the original thunderbolt was 5Gb/second and the Thunderbolt 3 is 40Gb/s but what will I really see using Final Cut Pro. The Pegusus family seems to be limited by the speed of SATA which is 6Mb/second. Currently my MBP can achieve almost 1000MB/second read write performance on the internal drive according to the BlackMagic Utilty but the issue falls to storage space. My Pegusus sees around 250/Mbyte per second. What will a newer Pegaus R3 achieve in reality when it comes to R/W performance when SATA seems to be the bottleneck. Are there advantages to using SSDs rather than conventional rotating drives? Are there plans to incorporate M.2 PCI drives inside the Pegasus class devices? I plan on using the device as a RAID 5 device.

Pegasus2 R4 all drives showing dead

2018-02-19T00:16:42.4000000

I have just replaced my computer after my old one died. My Promise was working fine until I put two two old drives in to recover some of my old data from that I'd backed up. But now when the others have been put back in they are all showing as dead. Have I lost everything?

iMacPro + Pegasus = happy marriage?

2018-02-10T06:08:07.5670000

I‘m a video producer trying to find out which Pegasus device would be good to use in combination with a new iMacPro for video editing. Would the Pegasus 3R4 12TB be a good choice?

On the Apple store, Mac > Storage, when Compatibility iMacPro is selected none of the Promise products show up. This seems to indicate Apple does not recommend Pegasus. Can anyone give advice?

What is the rule of thumb for when you need more space?

2018-01-31T01:07:20.9170000

I have been told 60% of capacirty is where you want to start looking to up-size.

Critical Rebuilding

2018-01-26T14:32:54.5430000

I have a Pegusus r6 that had a drive fail. I replaced and it has been rebuilding for 12 hours and how it states that it is critical rebuilding. What should I do? I have had it offline for 2 days now.

Identify R6 model

2018-01-12T11:53:21.2700000

how do I Identify my R6 model from serialnumber?

and where do I find a list with aproved harddrives for my model, want to replace my 2TB drives with 4TB og 6TB

thanks

Best RAID with two Promise Pegasus systems

2018-01-11T09:17:45.7270000

I have two Promise Pegasus 2 systems, a R6 with 6x2 TB disks and a R4 with 4x3 TB disks.

At the moment both run on RAID5 with 10TB available on the R6 and 9TB available on the R4.

I would like to use one of them as a backup for the other. Am I correct in assuming that I could use RAID0 for both and have two 12TB disks as safety is not an issue if I use one as a backup disk?

Thanks for your advice!

Emile

Switching out hard drives

2018-01-05T17:30:50.2130000

I have a Pegasus R4 8TB with (4) 2TB hard drives. One of the slots of this unit failed so I bought a new Pegasus2 R6 12TB. Can I take the hard drives out of the R4 and put them in the new R6 and have the data transfer be seemless?

Pegasus R6 mounts only if it's been off for a while / not readable after it's been on for a while.

2018-01-04T18:52:57.2770000

Pegasus R6 mounts only if it's been turned off for a while (more than 15-30 minutes).

OSX finder can't read contents if drive has been on for more than an hour.

I'm running OS X 10.9.5 and can't upgrade.

Could this be a hardware issue? Is there a driver for OSX 10.9.5 that I can try to see if it fixes it?

Promise Pegasus R4 firmware/utility losing communication with Finder in OS X Yosemite 10.10.5

2016-04-01T15:39:02.5730000

Hi Guys,

I'm having major issues with my Promise Pegasus R4 running on Yosemite 10.10.5 and Promise Utility Firmware Version 3.18.0000.36.

When I first boot up the OS X sees the R4 just fine, I can get in and look at clips via Finder, tag, rename, etc. After minutes, maybe 15 mins, it's no longer happy. Finder begins to freeze, spin, hang forever, and where I usually can (as I do on any other drive, and previously on my R4) view clips, do a two-finger touchpad scrub through them in a Finder window, here it will freeze before I can even see the clip's video image, it will not show the video and immediately produces the 'ole beach ball. This ONLY happens on my Pegasus, no other drives.

I originally treated this as an OSX 10.10.5 issue. I trashed Finder and Sidebar (as I thought initially it could have something to do with high volume of tags) plists, but none of this seems to have anything to do with it.

The R4 is cleanly formatted RAID 5 (12TB usable, with only 4TB of media on it).

Please, Promise, Wise Users, anyone, this is an SOS. Any help would be sooo appreciated. I really need my Promise Pegasus R4 to play well with others so that I can finish my job. As it is I cannot access my work.

Thanks,

J. Oak

Pegasus 3 R8 PC Speed Test - Slow

2017-07-07T06:38:24.1400000

Hi all,

I just got the Pegasus 3 R8 32tb (PC edition). It's connected to a thunderbolt 3 port. I have a beast f a machine running i76950x, 128gb ram, geforce gtx 1080ti 11gb,

I have the RAID set to RAID0.

I've been running some tests with Blackmagic Speed test and I'm only getting at best 380mbp/s. I was expecting to see something around the 700 mbp/s mark...anyone???

Promise Utility not launching despite being fully updated

2017-11-04T09:07:33.2470000

Top drive failed in R6 so swapped drive, bottom 5 lights now flashing so it looks like rebuilding but i cant get Utility to open so i confirm status of R6

PLEASE let me know how to make utility launch?

thanks in anticpation

Robin

Pegasus R4 went offline

2017-10-25T09:48:10.8370000

Today i came to work, powered on mac pro, then i realized my promise didn't go online. It looks that It's second and third tray is dead. What should i do? Restoring my Premiere Project files are enough for me. Thank you.

Pegasus R4 disk error: "physical disk is marked as DEAD due to removal"

2017-10-22T14:32:01.9300000

May I know what exactly this error message "physical disk is marked as DEAD due to removal" mean? Is this a real hard disk failure that it can't be used any more?

Another observation for my R4 is that it keeps failing on this disk drive number 4 only. I have encoutered this failure and replaced with new hard disk about 3-4 times that always for this drive number 4 only. Is this normal or something is wrong?

Thanks!

Pegasus r4 red light

2017-10-22T10:49:04.1030000

Hi,

i'm french

For 1 week, i've the second HD with a red light. Could you explain me why and the consequences, please ?

fot your information, my pegasus is connected with a external server (blackblaze backup) continuesly.

thancks for your help

Ludovic

Pegasus2 R6 powers on, then off

2017-10-16T13:51:30.1870000

I have a Pegasus2 R6 that will turn on fully (power light goes from amber to blue), then after approximately five seconds, turns off (power goes from blue to amber, clicks three times then turns off). This happens independantly of any hard drives or Thunderbolt cable plugged into the unit.

Thank you for any help you can provide.

Pegasus3 R4 drivers not loading on imac

2017-09-27T01:12:43.6630000

Hi! Does anyone know how to fix this? I have spent hours on the phone with Promise. The chassis went bad after 2 weeks and now the drivers for the new chassis ("PromiseSTEX" and Pegasus2R2ICON" in extensions list) won't load on the imac according to the imac system report. I redownloaded and reinstalled the driver, rebooted the imac several times, disconnected and reconnected everything. Amber power light on the new chassis the whole time. Thanks for your help.

Two Red Ligths / 2 disk dead

2017-09-26T02:44:48.1900000

Hi.

We have 2 red lights (2 disks dead on Promise Utility diagnosis) Pegasus R6.

What to do? Any sugestions?

Thanks for the response.

Ivan.

Pegasus R4 disc upgrade

2017-08-27T07:58:14.0770000

Hi, I've got a (2013) Promise Pegasus R4 (4*1TB) RAID.

I need to expand its capacity (& don't need to keep of the current data).

I just wanted to check hard drive compatibility.

Can I replace the current drives with 4* 4TB Seagate Barracuda ST4000DM000 drives?

Thanks

Pegasus3 r8 first crashed OS 10.12.6 on late '13 Mac Pro over and over, now doesn't mount

2017-08-22T00:19:32.7800000

Promise Utility version 4.00.0000.06 (C03) says Firmware version b 5.04.0000.17. My Pegasus2 r8 is working flawlessly, but it doesn't recognize the P3. Have tried re-seating the computer, the 3 to 2 Thunderbolt adaptor and the P3.

PCI Thunderbolt Card that works with pegasus series

2017-08-21T16:34:33.4030000

Hello,

I know there is no PCI card listed in your pdf compatibilty list (it's quite minimum..)

I am using a Asus MB (X99 deluxe2/3.1) and Asus PCI thunderbolt EX 3 is recommanded for thunderbolt 3 connecting....

I wonder if someone used a ASUS thunderbolt EX in the past to connect to a Pegasus DAS ?

Cheers! :)

Pegasus 3 not working properly with iMac 27' Late 2013 running 10.9.5

2017-07-29T10:16:18.8270000

When I connect my Pegasus 3 via a thunderbold 3 to thunderbolt 2 adapter seems like everything is not working properly. I use the last update in promise utility and drivers like support center mentioned to me before.

The temprature is always high causing fans to make a lot of noise.

The pegasus causes iMac to reboot every since a while.

The pegasus can not sleep and wake with iMac.

Pegasus R3 won't mount

2017-07-29T16:30:31.7670000

Just purchased a Pegasus3 R4 and it won't mount on my iMac 2017 27" desktop. Is there anything I need to do other than connect with the thunderbollt 3 connector?

Pegasus 3 I can not transfer lots of RAW files simultaneously

2017-07-29T09:51:52.8730000

Hi! I recently purchased a Pegasus 3 R4 12TB Symply Edition and I have it connected with my macbook pro running El Capitain via a thunderbold 3 to thunderbold 2 adapter.

I'm a photographer and when i try to transfer my RAW files from my memory card reader to my Pegasus it won't let me to write more than 200 something RAW files at a time. If I check like 1000 RAW and drag and drop to my folder in Pegasus it just freeze there for ever. If I move the hole folder from my memory card then it copies the files.

Any advice?

Older Pegasus 2 R6 vs Newer Pegasus 3 R4

2017-07-25T00:19:05.9200000

Hi guys,

I'm looking for a 12TB desktop RAID for video editing, and I keep coming back to the Pegasus range.

So my local CVP offer a 12TB unit as a 4 bay (the new Pegasus 3) and a 6 bay (the older Pegasus 2).

I'm wondering if there's any reason I should opt for the Pegasus 3 R4 over the Pegasus 2 R6?

I'm assuming the R6 will be slightly faster due to haveing more drives, despite it being an older model?
Am I also correct in believing that the R6 will give me 10TB of accessible storage, over 9TB on the R4?

A huge thanks in advance for any help on this one.

Charles

Pegasus3 R8 // New drive options, 8TB & 10TB

2017-06-09T21:47:09.9530000

Why is Promise being so evasive about what drives models they are putting in the new 64TB & 80TB units?

Pegasus2 R6

2017-07-16T18:19:40.6570000

Hi,

I can not able to copy anything from Pegasus2 R6.

Promise3 Pegasus R4 not connecting to PC

2017-07-12T07:45:30.5730000

Hey I've got an issue with my Pegasus R4 not connecting to my Dell XPS. It's been working fine, but after adobe crashed on a project it wouldn't recognise the R4 at all. not with or without the drives in it.

Peg3 R6 for iMac 27" TB1 and Sierra - Anything I need to know before buying?

2017-06-09T07:58:21.8070000

Hi folks, - I am new here so pls be gentle.

I have an iMac Late 2013 27" i7 Thunderbolt 1 which I use for video editing using FCPX. I intend ordering a Pegasus3 R6 24TB for video editing.

I would like to know of any gotcha's before ordering. I understand I will need an Apple TB1/2 to TB3/USB-C adaptor cable, and may have to install some drivers. I plan on using RAID 6, which will give me approx. 16TB of usable space. I have a Synology DS1815+ which will server as backup target.

Q1: Is the Peg3 R6 a suitable choice?

Q2: Will it work ok on TB1 iMac?

Q3: Anyone have any "real world" experience with this setup? Please share.

Thanks in advance,

Paul

Pegasus 3 R6 Utility and/or Firmware Update Needed

2017-07-07T18:07:01.6430000

When will we see a new Utility and/or Firmware update for the Pegasus 3 R6 24TB? Backplane Temperature Warning after 15 minutes of use causing the cooling fan to ramp up from 1400rpm to 2200rpm.

Pegasus R6 won't mount

2017-07-10T23:11:23.1700000

Hi There - hope someone can help.

My Pegasus R6 will not mount on my Sierrra iMac

- it shows up in Apple Disc Utiliy but the volume listed as (-)

- it show up as if everything is fine in the Promise utility

- have checked that the cable is properly plugged in, restarted computer

What happened -

The unit showed a drive as having failed. I swtiched it off, restarted computer, and then it came back online. The mac showed an error message saying I could read from the drive, but not write, and that I should back everything up to another drive. This happened when migrating from a 2011 iMac to a new one. Unfortunatly the main film on the drive was a 2.5TB Final Cut Pro library, and the only spare drive I had was 2TB. The project would not open on the new iMac, saying it was already open on the old one (which was switched off). I plugged the R6 into the old machine, opened the project on the old machine and deleted the render files, and this got the library size down to less than 2TB. But when I moved the R6 back to the new machine the disc failed to mount.

This isn't the first time I've had a similar problem - the unit has had four discs fail over it's life, and it has done the "read but can't write, better back up" trick once before as well. It has not been very reliable. I've made it a habit to keep it switched off when not in use, and that seems to have helped. The two times it brought up the error message "read but can't write, etter back up" were when it was copying large files.

In the past I've been able to use the Promise utility to restore the drive, but in this case I'm more concerned about the data - that one big project - that I want to get back.

FWIW - I have a backup of the project on another disc, but the backup is corrupt.

Should I replace the drive that indicated it had failed (it was the bottom one, so easy to remember which one) and try restoring the disc with the promise utility - will that have a chance of getting my file back? Or just scramble things further?

After 10 second power outage, R4 will not power up and stay on.

2017-07-04T20:55:15.9070000

I have an R4 and its been great for a while. I had a power outtage recently, and now when I turn it on, it starts up but then before anything mounts, it powers off.

This is a Pegasus 2 R4.

• Press power on

• The power light stays yellow while it starts up

• After a few seconds, then turns blue

• After 2 seconds of being blue, the light turns red, then powers off.

Suggestions?

Sounds of the Pegasus3 R6

2017-06-09T11:28:22.9470000

Hi, Just started using my new Pegasus3 R6 in RAID 5 with my new 2016 15" MacBook Pro. I'd like to know if it's normal for the drives to make so much noise? Simply put, the spinning drives sound like they're gurgling. It also does this sporadically while sitting idle. Is this normal? I realize that there are six spinning drives which would make some noise, but this seems to be excessive. Please let me know what your experiance is? Thanks, Ray

R. Michael Michael Rice

2017-07-05T00:05:58.9500000

I have a five-year old R4 I use for backups and storing other archived data. I have replaced several faulty drives over the years with no real issue, just hot-swaped the drives, allow it to re-build and move on. This time a drive went out and I removed it, and as I was fitting the new/replacement drive, another adjacent drive went down. Now my mac does not even recognize the R4 as an external drive that can be mounted. Are all my backups and data gone?

Promise pegasus 2 R4 unable to power up

2017-06-28T11:37:42.8830000

We are using Promise pegasus 2 R4 for last 2 years.Last day the Promise pegasus 2 R4 try to power on but its not shown any indications and try to hold the power button for 30sec .After that it is not power up.We have tried two other systems and multiple power code and thunderbolt cable.But Promise pegasus 2 R4 not turning on.Please find out the solution to solve the issue.

Sending Email through Office 365

2017-06-30T10:24:22.5470000

Hi!

After the latest update Pegasus Utility for Mac version: 4.00.0000.08 (C01)

on system 10.12.5. I get errors on the mailserver:

Error: 550 5.6.11 SMTPSEND.BareLinefeedsAreIllegal; message contains bare linefeeds, which cannot be sent via DATA and receiving system does not support BDAT

smtp.office365.com

port: 587

Mail doesnt get delivered, I think that a external spamfilter that complain.

Anyway to fix this?

Regards

Mikael

Promise pegasus 2 R4 new device with old RAID Hard disk

2017-06-28T13:10:48.5300000

We are going to purchase a new Promise pegasus 2 R4 ,casue our old Promise pegasus 2 R4 was dead /not powering up and the hard drives are fine.Please suggest - If we buy a new Promise pegasus 2 R4 disk enclosure with out Hard dives and mount old hard disk to the new Promise pegasus 2 R4 disk enclosure will loose any data. We can mount the same volume to this Promise pegasus 2 R4 .Please help us to take the dicision.

Can NOT find download link......

2017-06-16T04:09:07.3200000

I am looking for Pegasus3 driver for windows, following the manuel to download, nothing there.

Anyone who has download link, pls help me.

Turned on my Pegasus - Everything gone!

2017-06-13T12:43:32.0500000

Hello,

Turned on my computer to work on some photo's and EVERYTHING is gone! Yikes... Where could it have gone?Drives look fine.

Pegasus not mounting

2017-06-08T14:37:59.9270000

Hi,

Haven't used this drive in some time, but now I can't mount it/see it from my mac. I've updated the software, and updated my mac to Sierra. I've tried everything I have found on your site, but to no avail.

Help, please!

Mary Ann

Pegasus R6 Not Mounting / Showing up in Mac Finder

2017-05-31T12:02:13.3130000

Dear Support Team,

I have exactly the same problem like other people. My Pegasus Promise R6 suddenly stopped mounting two days ago. Promise Utilitiy tells me that everything is ok but I just cant get access to it. There are a lot of files saved on it so I donnot want to try something without your advice. Under the Thunderbolt tab of Mac it tells me that the device is connected. I attached some screenshots. I also made the subsystem file info. Is it possible to attach it or send it to you?

Many thanks in advance and best regards
Elwin

Using SSDs on Pegasus3 r8

2017-04-19T22:02:20.6370000

I am interested in purchasing a Pegasus3 R8 if I could install 2TB SSDs, but the only three devices that are listed in the Pegasus3 compatibility list v1.1 are three Toshiba products and although the header says SATA/SSD, none of them is an SSD.

So here is my question: Does Pegasus3 R8 support any SSD, e.g., Crucial 2TB CT2050MX300SSD1?

Pegasus3 r4 crashing

2017-04-29T19:05:50.8030000

hi, recently bought a Pegasus3 R4 to use with my MacBook Pro. Changed the drives to WD black 6tb. Worked great in the beginning. But now as I've filled up about 8tb it's started to crash every time I use it. Not sure what he issue can be. But my guess has been either the drives or the macOS Sierra 10.12.4. Any clue what it can be?

i can't copy material to the drive without crashing the whole mac.

worked perfect for the first days, then now it's just useless.

Thanks

Can Pegasus3 charge a 15" Macbook Pro at 85W?

2017-04-26T18:15:21.3900000

I've been looking for a Thunderbolt 3 RAID array that can charge my 2016 15" Macbook Pro at 85W to eliminate cable clutter and have a true one cable solution.

Can the Pegasus3 RAID enclosures do this? I can't find any documentation either way.

PEGASUS r4 BIG PROBLEM HOW TO REBUILD AND POSSIBILITY

2017-05-29T17:52:33.8070000

hi all

first sorry for my english im a french guy

So, i have a PEGASUS R4

after e lot of problem of power my disks have big problem

i dont know how use RAID 5 buid ...

i need help all my work on Sound studio are on this disk

i send 4 screen capture of pegasus utilitaire , if someone can help me i dont how

PLEASE Need help

Thanks a lot

Older R4 multiple drive failures?

2016-07-18T16:54:25.0700000

I have an early R4 that I purchased in August of 2012. I'm now having regular drive failures, currently replacing a drive every month. The current failure happened a week after the last one. It's not always the same bay. Do the R4s have a life span? Or could it be something else?

Thanks,

Jeff

ONE RED LIGHT ON PEGASUS R6

2016-09-08T14:55:26.6930000

Thanks for the fast response i ran the Promise Utility app and it said that the disk in slot #4 is dead. What procedures should be taken to correct the situation for the dead disk. Heres the details on this products that is working normally despite of one dead disk,

Pegasus R6 18TB-US Thunderbolt serial number SGL037045585

Regards Ray Carignan

Can I connect Pegasus3 to the thunderbolt 2 on my iMac27"

2017-05-13T08:44:52.5900000

I am new to Thunderbolt solutions. Have an old fine MacPro with 4 disks, it just works, but now i consider getting the new 27"/5K iMac wich has only thunderbolt 2 out. And then connect via a Corning 100' optical cable, possibly adding a converting short cable?. I look at the Pegasus3 since its the newest and I might add a Macbook Pro which have the Thunderbolt3 ports. But maybe I should settle for a Pegasus2???

comments are very welcome

Kind regards

Palle

Pegasus R4 firmware update and compatibility with Mac El Capitan

2016-07-27T10:40:34.6300000

Hi,

I run an Pegasus R4 (firmware 5.02.0000.53) and I have seen some questions/concerns on compatibility with the most recent El Capitan Mac OS. Today I run OSX Yosemite 10.10.5 without any problems.

Just want to make sure I do not upgrade and create problems...

Questions:

1. Is my R4 compatible with Mac OS El Capitan? Is it correct I need to update the firmware?

From the SR 2.44 release notes, I understand that:

- SR 2.42 provides: Bug Fixing of Mac Utility and support OS X 10.11
- SR 2.44 with FW 5.04.000.57 has a new Mac SW 3.20.0000.15?

2. How do I upgrade the firmware ? (cannot find any info on this).
I have seen a new firmware SR2.44, downloaded it, but my Mac cannot handle this .img file.....

R4 data:

serial number: M74H11812000454

Revision number: A2

WWN 2000-0001-5530-9d32 (What is WWN?)

Pegasus R6 Dual RAIDs Thunderbolt

2017-04-20T20:50:02.0700000

I have four 2TB HDs setup as a RAID 5 for video editing. I have two more 2TB HDs that i want to install. If i setup the last two bays as a RAID 0, will i still get good performance out of it since both RAIDs are in the same housing / single Thunderbolt cable?

R6 not in Device list after macOS Sierra Update

2017-04-11T08:38:19.8500000

I have just updated to macOS Sierra 10.12.4 and now my Promise Pegasus R6 is not showing in my Devices list in Finder. It is visible in the Disk Utility. The only way I can get to see all my files on the R6 is to unplug the Thunderbolt cable from the rear of the MAC (not the rear of the R6) and put it back in again. Everything works then. How do I get around this?

Transferring disks / raid set from Pegasus to Pegasus2?

2017-01-23T19:10:17.2500000

Hi there,

I'm curious if it's possible to remove the physical disks from an operable Pegasus R6 enclosure set up as RAID5, and install them in a Pegasus2 R6 enclosure, without loss of functionality / data.

I have freely transferred raid sets from Pegasus to Pegasus enclosures, and everything has been fine, but hesitate to move them in to a Pegasus2 enclosure without knowing if it'll cause any issues.

My scenario is this: I have a dead Pegasus enclosure, and have found a used Pegasus2 enclosure for sale locally to replace it.

Thanks in advance if you can help!

Greg, in San Francisco

Pegasus2 migrate RAID 6 to RAID 5?

2017-03-28T14:49:23.8330000

I'm working with a Pegasus2 R8 setup in RAID 6 (one logical volume of 24TB, can sustain two failed drives), and I'd like to change the RAID level to RAID 5 (one logical volume of 28TB, can sustain one failed drive), Is this possible to do "in-place," without erasing all the data off the unit?

Pegasus R6 & MacOS Sierra?

2016-09-29T22:19:48.1770000

I can't see any documentation from Promise to confirm compatibility between the R6 and Sierra - can anyone confirm that it does in fact work before I migrate our server?

Thanks…

Pegasus 3 R4, set to RAID 5, want to change to RAID 10. Delete logical drive?

2017-03-24T02:39:55.7270000

I'm starting with a new Pegasus 3 R4 which is set to RAID 5 by default. I'd like to make this RAID 10, but am not sure exactly how to go about this. The last thing I want to do is brick this thing.

Do I delete the logical drive and create another one in a RAID 10 configuration? Or do I have to delete the disk array as well?

Any help/guidance would be greatly appreciated, thank you!

-Chris

Pegasus 3 Thunderbolt 3 to Thunderbolt 2?

2017-03-21T01:20:15.0530000

How can I attach a Pegasus 3 to a Mac Pro with only Thunderbolt 2 port? I tried the Apple Thunderbolt 3 to Thunderbolt 2 adpator with no success.

pegasus3 simply and pc edition

2017-02-22T17:05:56.4770000

HI, i have some questions :

1. what the default format of the pc edition ? is it fat32 or ntfs?

2. as i checked promise website , there are 2 version pegasus3 : simply edition (for macos) and Pc edition (for windows). My question is can i just swap these between mac and pc ? i mean can i connect simply edition to pc (by using peasus driver for windows and format the drive to windows format) or can i connect pc edition to the mac (by formating the drive to osx format). Because what i'm thinking is that the connectivity is only depends on the driver and file format, so physically the pc and simply edition is just the same, am i right ?

3. if my motherboard doesn't have a thunderbolt port, can i just connect to my usb 3 type C ? if so, will i get any speed problem ?

Thanks

Osx server and Pegasus R6

2017-02-12T10:12:32.2770000

Hi,

i use osx server Sierre with raid Pegasus R6 on my Mac mini.

All think is ok.

But our mailbox use too much space, so I think to move all storage of osx server on my raid. Data is already on Raid but now i would like move /Library/server folder.

is there any issue possible? Does anybody work like this?

thanks for your advise.

Pegasus R6 won't mount

2017-02-05T20:30:04.8770000

Between yesterday and today, my Pegasus R6 won't mount. Following directions from this site, I removed all the drives, updated the firmware and tried again.

I'm running Mac OS 10.11.6

Pegasus utility is working, all drive lights seem OK. System Information sees Pegasus R-Series.

Disk Utility sees Promise, but won't allow me to mount it.

Any thoughts?

Cheers

John

Pegasus R6 not mounting on 1 MAC Sierra 10.12 but mounts on macair

2017-02-01T16:24:44.1170000

I'm accessing a drive via my MacBook laptop using thunderbolt . 10.12 no drivers installed. Did the same with MAC air no drivers and the drive showed up. Not sure why MacBook not seeing drive if another can.

additionally I installed the utility and uninstalled for testing - unfortunately when it was installed it did nothing. On my desktop with the utility installed I can manage the raid . But on on lapto there are no options other than limited preference options.

any thoughts? What is the proper utility download?

Cannot create Disk Array on Pegasus R4 RAID

2017-01-30T19:21:36.3200000

I inserted 4 new mushkin reactor 1tb SSD's into the Pegasus R4 RAID box, then formatted each drive to be recognized by my Mac computer. After launching the Promise Utility I changed each physical drives configuration from PassThru to Unconfigured, although when I tried to create a Disk Array for some reason I am not given the option to select the drives for the task. I noticed that I can run an automatic creation through the utility's wizard but it would only create a RAID 5 level, when I try to manually set it up I cannot do anything. Anybody know what the issue could be?

Here is an image of the issue: http://imageshack.com/a/img921/6528/cFMnPQ.png

Pegasus R3-4 on 2013 mac with Thunderbolt 2-3 adapter Voltage Temperature Issue

2017-01-26T16:12:04.5170000

I am running a brand new Pegasus R3-4 on a rather old (late 2013 ) imac with the apple thunderbolt 2-3 adapter with a Pegus 2 M4 daisy chained after the R3-4 (also with an apple adpter thunderbolt 2-3)

No specific issue in operating except that I get

Temperature 1 critical

Temperature 2 : normal

Voltage 1 : ok

Voltage 2 : ok

Voltage 3 : critical

immediately upon powering up while the status description for the enclosure remains on " loading " and never loads.

The Pegasus 2 M4 daisy chained after the R3-4 is all ok with no diagnostic issues.

Any help appreciated, although the issue does not seem to affect usage ( but you never know...) and there is no warm area detectable by touch on the R3-4 which sits by itself in a well ventilated and air conditionned room. ( and it is winter in Hong Kong )

Regards

pegasus2 R8 and Pegasus 3 working together help needed

2017-01-20T22:01:16.9300000

Hi, I have a pegasus 2 with all my info on it and since it started acting up I decided to get the new pegasus 3 for mirroring it, I have them botj plugged into my mac pro (late 2013) but I can only see the Pegasus 3, not the2. also the promise utility will only find one pegasus. any advice on how to fix it plesae?? when i first plugged the P3 in the backround activities is says synchronization.... what is it synching with???

Thanks

Pegasus3 Dual Thunderbolt 3

2017-01-19T19:28:25.7730000

Hello,

You said in the description page of Pegasus3 Symply "With dual Thunderbolt 3 ports, expanding devices or adding dual 5K displays is fast and easy.".

I want to know how it work with a new MacBook Pro and a LG 5K display (only one Thunderbolt). What is the best settings and what to plug on what.

Ex:

MacBook Pro > Pegasus3 > LG 5K

Pegasus3 > MacBook Pro > LG 5K

Thank you

Needed: Pegasus 3 Setup Advice

2017-01-12T16:35:03.2230000

Hi, I just received my 2016 maxed out MacBook Pro w/ touchbar. In addition, I will be purchasing a maxed out iMac once one is offered with thunderbolt 3. I'm coming from the PC world using Sony Vegas Pro & DVDA. I'm currently diving into FCPX & Motion. I mainly do personal video's from 10 minutes to an hour of 4K and/or HD 1080 footage in the time line. I'd like to add, I multicam (only two camcorders) at times as well. I use plugins, effects, chroma keying, music. My equipment only consists of the following; Sony XDCAM PXW-X70 w/ 4K, XAVC L(GOP) & AVCHD
Sony RX100 V w/ 4K GoPro Hero 2 (HD) With that being said, I'm interested in the 24TB Pegasus3 R6 Thunderbolt 3 configured in RAID 5 for my video editing drive. I'm also considering a 12TB Pegasus3 R4 Thunderbolt 3 configured in RAID 5 for my backup drive. I would like some advice from those of you that have a simuliar setup? I don't want to do a big overkill in what's needed but, I also want smooth video editing without hiccups. If you have any advice in regards to setup, RAIDs along with your setup, please let me know? Your advice and/or help would be most appreciated. Thanks, Ray

Sharing 1 Pegasus R4 with two MBPs

2017-01-05T15:31:32.2170000

Hey All,

Iv Googled like crazy to find anything about sharing a Thunderbolt Peg R4 with more than one MBP at the same time, but I cant find anything on the topic. Any help? Thanks!