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1 failed drive in RAID 10 pair caused 2nd drive to be marked bad

Started by nadamsmasd, June 25, 2018, 07:43:30 AM

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nadamsmasd

June 25, 2018, 07:43:30 AM
I have a situation with my Terastation TS-XEL. Drive 1 in the unit failed, and when it did so, drive 2 in the unit also got marked as bad. Initially, I thought that drive 1 was just locking up the controller for the pair, but after removing the failed drive, drive 2 is still marked as having an error. Since these two drives were one of the 2 mirrored pairs, the RAID array will not mount.

I have checked drive 2 with another computer, including doing a bad sector scan, and everything comes up good. My belief is that it's an issue with the partition tables or something else that got corrupted when drive 1 started failing.

Are there any tricks to getting this drive back online so I can rebuild the array?

davo

#1
June 25, 2018, 08:35:27 AM
Do you have a backup?
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nadamsmasd

#2
June 25, 2018, 08:42:53 AM
Quote from: davo on June 25, 2018, 08:35:27 AM
Do you have a backup?

Fairly certain you know the answer to that already. The data was not deemed to be important until it was no longer available.  ::)

My alternate plan is to scan the drive with an undelete program and see if I can recover anything. But I thought I'd ask first if there was any way to get the Terastation to see the drive as "good" again.

oxygen8

#3
June 25, 2018, 10:03:13 AM
try ufsexplorer with the 2. disk
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