Q: el capitan RAID problems/Phantom Partitions
I run a Miniserver 2010 with two 500gb SSD drives, which contain each a 100gb System RAID, 200GB Data RAID and two normal 200GB Partitions.
There are various reports that El Capitan does not work well on RAID disks.
I just upgrade your server from Yosemite to 10.11.2 and the upgrade did not go smooth because the installer could not unmount the 100GB RAID Startup volume.
I had checked it with Disk Utility in Yosemite and it did NOT show any deprecation or error.
I managed to rebuild the RAID with the terminal commands from diskutil and install the backup which I had done.
Now I am running the server for some days...everything seems fine.
But when I open the new Disk Utility from El Capitan it does not only NOT have any support for RAID anymore.
It also cannot unmount Raids, Repair Raids and on top of that is shows "phantom" partitions called "untitled" which must be some RAID errors.
If I run diskutil appleRAID list.. it shows that my RAIDs are healthy and autoupdate.
I tried to Start the server from another startup disk and Repair (to get rid of those untitled partitions...which keep me worried) but I only had a 10.11.2 Disk at hand.
My questions:
Is it still save to run EL CAPITAN on Raid setups (like the Mini Server 2010 was advertised, with his two disks).
IS appleRAID supported by 10.11.2?
Would SOFTRAID solve all these problems and be a safer solution?
What do you think?
Mac mini Server (Mid 2010), OS X Server
Posted on Jan 13, 2016 1:41 PM