Mounting legacy Pegasus issue...

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  • Last Post 15 hours ago
Robert Thompson posted this yesterday

I have an old iMac that end of lifed, attached to it I have a Pegasus R6 (TB1) that I now need to get some media/files off of.

No worries, i have an iMac pro at work (with a Pegasus3 R6) I have the adaptor cable, jam it in the back of the iMac Pro and off I go.

Well...it doesnt mount properly, I can see both Pegasus in Disk Utilities but only the P3 mounts properly...meaning icon on the desk top.

I did try the Dext Driver...though i know that probably wouldn't work...and it didn't, so I'm kinda stuck. 

If anyone can offer some advice as to how I can mount the old Pegasus would be great...not life or death, just need to get at some old files.

Frank Bosma posted this 15 hours ago

Hey Robert,

the easiest way is to transfer the 6 disks from your Pegasus1 device to your Pegasus3 unit.
Please make sure the Pegasus units are powered off before removing any disks from the housing.
The order in which the HDDs are placed in the chassis is not important.

The logical drive on your older disks will mount normally in any other Pegasus R6 or even R8 chassis since all RAID configuration is stored on the set of disks themselves.

My guess is that your Pegasus1 unit is running too old firmware which is why it can't mount on your newer iMac Pro.
If your Pegasus3 device works fine there then the installed driver should be fine and also support your Pegasus1 unit.
(The newer drivers are always backward compatible with the older Pegasus hardware)
Unfortunately you can only update firmware on Pegasus devices if they are recognized on the host PC and seen in the Promise utility so you will have to find another older Mac device to check and update the frmware on your Pegasus1 chassis before you can use it on newer Mac hardware and OS versions.

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