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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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RAID 1

January 21st, 2013, 10:56

I replaced the battery on my motherboard and lost the RAID 1 configuration I had. I did not realize it for a couple weeks until I happened to go into Disk Management and see the "Failed Redundancy" label on the one drive.

So, now I have 1 drive that is current with data I have been placing on it and one drive that lacks the data during the period the RAID1 was not configured.

The question is, can the RAID 1 be re-established without losing the data on both drives? Or, are both drives wiped clean when you designate them as RAID 1?

The only solution I can think of, is to transfer all the data off the good drive, re-establish the RAID 1, then transfer all the data back onto the RAID 1 array.

Re: RAID 1

January 21st, 2013, 11:07

bill4d wrote:
The only solution I can think of, is to transfer all the data off the good drive, re-establish the RAID 1, then transfer all the data back onto the RAID 1 array.


Good thinking. Better safe than sorry.

Also, check the drives SMART values to ensure there is nothing wrong with them and will not deal with any surprises soon.

Re: RAID 1

January 21st, 2013, 11:19

I agree...make sure all data is backed up prior to attempting to re-enable the RAID 1 mirror.

Re: RAID 1

January 21st, 2013, 11:44

labtech wrote:Also, check the drives SMART values to ensure there is nothing wrong with them and will not deal with any surprises soon.


Thanks for the advice. Will do.
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