My upgrade was rather forced on me, when the original four 1 TB hard drives started to fail after more than four years of continuous and quite heavy use. It will say ‘Pass Through’ Click on the drive and change from ‘Pass Thru’ to ‘Unconfigured’ Now click on ‘Rebuild’ and it will rebuild the failed disk from the other disks.
PROMISE PEGASUS R4 HARD DRIVE REPLACEMENT HOW TO
If it is not on this list then it is not officially supported i.e. If you have a hardware RAID system like the Promise Pegasus R4, how easy is it to increase its drive capacity non-destructively It takes a little time, but works well. How to rebuild a failed Disc in a Pegasus promise Raid array Remove the failed disk and put in a new formatted disk. If it is on this list then it has been tested and approved for use. The compatibility sheet has the list of current qualified and supported compatible products. We have not tested SSD drives on Pegasus R4 unit and will not be able to diagnose if any performance issue occurred on those drives. As per the compatibility list, SATA Hard Drives has listed for Pegasus R4 products. I went into Promise utility and the Wizard saw that it was ‘pass thru’ and needed to be configured. I put it into the unit and it showed up as ‘untitled’ and was clearly not yet recognised by the rest of the system. Recently one of the drives failed (bad sectors) and I bought an exact replacement. It is best to make a new array with the new drives to get the full space otherwise if you replace one drive at a time, the space will be truncated to the same size as your current 2 TB drives.Ģ. I have a Promise Pegasus R4, set to Raid 0. You need to change the all the drive as a same size. If you replace 3 or 4 TB drive in any of the slot, the Pegasus controller will identify smaller size drive and consider all the drive size would be 2 TB hence cannot use remaining space.
There is a limitation to go with the drive upgrdation.
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