[X4U] Missing slice in RAID 0 setup

[Bob Aldridge]

I run a RAID 1setup from Disk Utils. I had a failure on one of my "slices", which turned out to be a hard drive that had failed. Replaced the drive and all is well. Hope that helps.

--Bob


On Jul 3, 2013, at 3:04 PM, "alexandre" <list at kapellos.com> wrote:

> Hi
> 
> I'll try and make this as precise as possible!
> 
> I'm running 10.8.4 on a 2010 MacPro. I have two striped RAID sets, one for
> files (2 x 3TB) and one for Time Machine backups (2 x 3TB).
> Last night, I did a Time Machine backup and then started a complete clone
> using SuperDuper of the RAID containing my data. When I got home this
> evening, I had a typical OS alert, telling me the disk  hadn't been
> ejected properly. I'm presuming it was my data RAID (the source), as it
> has disappeared from my desktop.
> 
> I booted from an admin account on the SSD and was able to open Disk
> Utility (I can't log in to any user accounts that are on the missing RAID,
> obviously).
> 
> In DU, in the left panel, I can only see one slice (3TB) and in the main
> panel:
> 
> 6 TB - "Monster Data" - Striped RAID set					Offline
> 	3 TB - RAID slice (disk1s2)
> 	RAID slice (2785D29A-5C1D-B0F1-3B0544CA0133) 	Missing
> 
> Can anybody tell me what is wrong? How can I get the missing slice back?
> 
> I'm not too worried(!) since I have an up-to-date Time Machine backup and
> a clone but I'd rather repair the current setup than do a restore.
> 
> Any help is much appreciated!
> 
> Regards, Alexandre
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