Pegasus2 R4 Promise Utility For Mac Rebuild Raid

Jeffrey Cederberg posted this 07 March 2017 - Last edited 08 March 2017

The Pegasus32 R4 is ready to use out-of-the-box, with the 16TB model offering four 4TB SATA 7200 rpm drives. Both models include Promise Utility for setup, management, and monitoring, as well as a three-year limited hardware warranty and 24/7 online assistance.

Pegasus2 R4 Promise Utility For Mac Rebuild Raid Download

  • If Pegasus Manual could be that clear and simple! I know technology, but frankly, after reading the manual almost from cover to cover, I couldn’t even get to activate the greyed Rebuild button frustrating. Now rebuilding a failed 3TB drive in a pegasus R4 RAID5 thanks to you. Smile coming back.
  • I will update this review once I receive my new Mac Pro with a Thunderbolt 2 connection. (Using Blackmagicdesgin Disk Speed Test Ver 2.2. Averages based on 1gb and 5gb stress tests)-.Update Just received my Mac Pro Thunderbolt 2.-Mac Pro internal SSD speed of 975mb write/ 942mb read.-Promise Pegasus2 RAID 50 730mb write / 659mb read.

The Promise Utility is showing a dead physical drive in PdId #4 in my Pegasus R4 array.

The dead disk is only about a year old, so I wanted to try something...

I am on a Macintosh.

Rebuild

I took the 'dead' drive out of the R4 case and initialized it after I put it in an external drive enclosure on my Mac.

It initialized with no problem. I checked it with some disk utilities, and the disk appears to be fine.

So I put the reformatted physical drive back into the R4 unit.

  • It still appears as a dead drive in the Promise Utility. (See below image.)
  • I cannot change its config in the Promise Utility setting because I cannot click on either of the buttons that say, 'Passthru' or 'Unconfigured.' (See below image.)
  • Using Terminal, I cannot clear a stale config, I cannot assign a 'config=unconfig,' I cannot take the drive offline because a message tells me that 'it is already offline,' and I cannot clear a PFA condition because a message tells me that the drive is 'in use.' (See below image.)

This all seems very weird to me.

Nothing I do can help the Promise Utility see the drive so that I can do a manual rebuild of the logical array.

I do not want to force the drive online, because the last time I did that, it caused corrupted file fragments in the 'Lost+Found' folder.

Can somebody please give me some comments or suggestions?

Promise Pegasus R4

Thank you!