Promise Pegasus report dead after power failure

Question

After a power failure the Promise Pegasus R4 reports all disks drives as dead. But this is almost impossible! Is there any way to "reset" the Promise Pegasus without losing all data?

The unit is connected to a Mac Mini and I have the Promise software installed.

Answer 1

The official and easier way to recover is:

On Mac, open the Terminal and run:

promiseutil

This will open the promise utility. Now type the following commands:

phydrv -a online -p 1
phydrv -a online -p 2
phydrv -a online -p 3
phydrv -a online -p 4
exit

If you have the R6 version add this commands before exit the utility:

phydrv -a online -p 5
phydrv -a online -p 6

After you force the drive online, reboot the unit and you will have access to the data.