Q: Degraded RAID set RS1 - No spare available for rebuild
I have been receiving the following message from RAID Utility: "Degragded RAID set RS1 - No spare available for rebuild"
Can anyone help me understand what this means, and what the next steps are for diagnosing the exact problem ?
I have a Mac Pro with 4 X 1TB RAID 5 set up
Thank you
Mac Pro, Mac OS X (10.6.5)
Posted on Sep 29, 2012 11:42 AM
Grant,
Thanks again for your time, and helpful information.
In the end, I could not isolate my drive 3 to zero it out - therefore I bought a brand new 1TB hardrive (same make / speed 7200rpm as the previous drive that failed), I shut down my Mac Pro pulled drive 3, and replaced it with the brand new drive.
Per another discussion, I found out how to rebuild the RAID after replacing a failed hard drive:
https://discussions.apple.com/message/18867158#18867158
When I turned on my computer, I noticed that RAID Utility reconized the newly added drive 3.
I then selected the newly added drive 3 and used the RAID Utility to "Make Spare" from the top menu bar.
RAID Utility system recognizes the spare drive 3 and automatically schedules a Background Task to begin the Rebuild: RAID set "RS1"
It took over two days to rebuild the RAID.....
RAID set RS1 redundancy restored!
Posted on Oct 19, 2012 7:54 PM






