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Time Machine - A bag of hurt with RAID 0 volumes

Here's my situation:

Mac Pro with 4 internal Hard Drives. 2 of them are in RAID 0 and they are the boot volume. The 2 others are also in RAID 0 and are used as a Time Machine volume. Both volumes have a capacity of 1TB.

I had a problem with the boot volume which forced me to erase that volume. So the next logical step was to boot from the Leopard install DVD (10.5.4) and run the Restore from Time Machine application.

But once I reached the 'Select your destination volume' step it didn't show my internal RAID 0 volume.

I tried every possible configuration but the restore application didn't want to show the internal RAID 0 volume. If I would erase the 2 volumes from the RAID 0 as 2 seperate volumes they would show up. But that wasn't what I needed since the backup was larger than the capacity of 1 seperate hard drive.

Eventually I put the 2 drives in a second Mac Pro. Started that Mac Pro in FireWire disk mode and connected it to my Mac Pro with a FireWire 800 cable. Now, the boot volume would show up in the restore application.

After 12 hours of restoring my data and having almost finished the whole process the restore application gave me an error message saying that 'An error occured, please restart'. No explanation which error had occured. Also, I wasn't able to boot from the partially restored volume.

Conclusion:
1. Apple should fix the Time Machine restore utility so that it would find internal RAID 0 volumes.
2. I still don't have a restored machine. The only possibility now is to reinstall the OS and all the applications manually and retrieve my backup data manually from the Time Machine backup.
3. I'm reverting back to CCC for making backups

David

Mac Pro 2.66Ghz, Mac OS X (10.5.6), 4 GB RAM, 2 x 1TB RAID 0 volumes

Posted on Dec 19, 2008 1:41 AM

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Time Machine - A bag of hurt with RAID 0 volumes

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