Erasing and Reformatted Pegasus 2 R8

  • Last Post 27 June 2022
Kathleen Brown posted this 27 June 2022

I want to erase and reformat my Pegasus 2 R8 24 TB Raid to sell.

Should I use the the Promise Utility to do this? Or Disk Utility on Mac?

I have the M1 MacBook Pro 14-inch running Monterey 12.4.

Should I simply erase it...or need to reformat?

Thanks in advance for any assistance.


R P posted this 27 June 2022

Hi Kathleen,

If you use erase from diskutil my understanding is that file recovery is still possible, as unlikely that a buyer would attempt such a recovery. If this is not a problem read no further.

If you want to securely erase everything your best bet is to do a full init from the Promise Utility or CLI.

Assuming that you have the original configuration the CLI command would be...

init -a start -l 0

Be sure to disable the MAC sleep as the Pegasus will power off when the MAC sleeps.

A full init of a logical drive can take a long time. But if you do want to use it, after it's done you can use the macOS Diskutil to create a new filesystem on it.

A quicker way to scramble things would be to power off the Pegasus, re-arrange all the disks, then power on and delete the logical drive then the disk array. Then use the Promise Utility Wizard automatic option to create a new filesystem. The data will still be there on disk, but it will be out of order and  unrecognizable.