[bojangles]

I’ve got a 2011 Mac mini Server and have set the internal hard drives as a mirrored RAID. However, I can’t get the Recovery Disk Partition to work. I tried recreating it using Carbon Copy Cloner (which does support such a thing), but no dice. I assume the issue is that for some reason, the RDP is a different size on the two disks. Here are the results of diskutil list:

Code:
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.1 GB   disk0
   1:                        EFI                         209.7 MB   disk0s1
   2:                 Apple_RAID                         499.2 GB   disk0s2
   3:                 Apple_Boot Boot OS X               650.0 MB   disk0s3
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.1 GB   disk1
   1:                        EFI                         209.7 MB   disk1s1
   2:                 Apple_RAID                         499.8 GB   disk1s2
   3:                 Apple_Boot Boot OS X               134.2 MB   disk1s3
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS MortimerRAID           *499.2 GB   disk2
/dev/disk3
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *2.0 TB     disk3
   1:                        EFI                         209.7 MB   disk3s1
   2:                  Apple_HFS FilesRAID               2.0 TB     disk3s2
/dev/disk4
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.1 GB   disk4
   1:                        EFI                         209.7 MB   disk4s1
   2:                  Apple_HFS MortimerHD Backup       499.1 GB   disk4s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk4s3

(Note that disk3 is a Firewire-attached hardware RAID and disk4 is a Firewire backup disk, including a Carbon Copy Cloner–built Recovery Disk Partition. It is from this partition that I was booted, at the time.)

Any ideas?

Thanks!

[hobowankenobi]

That's right, you can't.

Per Apple, the recovery partition is not supported in certain configurations.......including RAID arrays:

Additional Information

Recovery HD cannot be created on RAID volumes. If your startup device is a RAID volume, you can either back up and reconfigure your computer to use a non-RAID boot volume and, if needed, a RAID volume for data which is not the target of OS X Lion installation. You can also create an external bootable drive with Recovery HD partition, as described above.

OS X Lion: "Some features of Mac OS X Lion are not supported for the disk (volume name)" appears during installation

You are not alone, this leads to some head scratching!