Striped + Mirrored software RAID no longer mounting
I have a MacPro 4,1 using the 4 internal bays each with a 1.5GB drive. Drives 1&2 are mirrored, drives 3&4 are mirrored. Those 2 mirrored drives are then striped together for a volume called 'Titanic.' Been working great for years, but just recently Titanic will no longer mount. My mirrors don't show any errors, but it seems I lost the stripe configuration. I updated to Yosemite last week. When running verify and repair I get:
Invalid number of allocation blocks. The volume could not be verified completely. File system check exit code is 8.
Running Terminal's checkRaid I get this:
AppleRAID sets (3 found)
===============================================================================
Name: Mirror2
Unique ID: 43EF978D-B5CF-4410-82A9-CB0E880B8759
Type: Mirror
Status: Online
Size: 1.5 TB (1499957919744 Bytes)
Rebuild: manual
Device Node: -
-------------------------------------------------------------------------------
# DevNode UUID Status Size
-------------------------------------------------------------------------------
0 disk2s2 29788AC9-0B7A-4E7E-94BF-E9FD8F697421 Online 1499957919744
1 disk3s2 6DDF597F-B4A3-4AEB-AB8F-77BD4360A791 Online 1499957919744
===============================================================================
===============================================================================
Name: Titanic
Unique ID: 140B7C4C-9A76-4B5B-BFBF-FFE7968A99AB
Type: Stripe
Status: Offline
Size: 3.0 TB (2999915773952 Bytes)
Rebuild: manual
Device Node: -
-------------------------------------------------------------------------------
# DevNode UUID Status Size
-------------------------------------------------------------------------------
- -none- 0B55A0E0-CFB1-4B38-84CF-794F5F2AD1D6 Missing/Damaged
1 -none- 43EF978D-B5CF-4410-82A9-CB0E880B8759 Online 1499957886976
===============================================================================
===============================================================================
Name: Mirror1
Unique ID: 0B55A0E0-CFB1-4B38-84CF-794F5F2AD1D6
Type: Mirror
Status: Online
Size: 1.5 TB (1499957919744 Bytes)
Rebuild: manual
Device Node: disk5
-------------------------------------------------------------------------------
# DevNode UUID Status Size
-------------------------------------------------------------------------------
0 disk4s2 A2103B4C-FF2C-4126-8D5C-DCBF68890AC2 Online 1499957919744
1 disk1s2 B549FC0E-D281-487F-9017-61F077D0E3A4 Online 1499957919744
===============================================================================Essentially if my mirrors are fine can I repair the striping? I have everything backed up offsite, but before I put my resources in that direction is there anything I can do to repair the problem?
