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Rebuild raid 1 on Windows 2008

I have a Windows 2008 server that had a raid 1 software mirror via windows.  After a Windows update the server was in a loop.  We got it back up but the mirror seems to be missing a member.  The drive was ejected and put back in once this was noticed.  Now, how do we add that drive back to the raid 1 array?
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gopher_49
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gopher_49
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1 Solution
 
DavidPresidentCommented:
It is probably being ejected for a reason, the drive is no longer functioning properly.  Run diagnostics on a different machine & replace that particular disk with a new one if diags confirm the disk is failing.
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gopher_49Author Commented:
The user ejected and then added it back.  But yes.  It did fail or came offline from the array.  We'll diagnose if possible.  If not, we'll replace.
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DavidPresidentCommented:
You might also check warranty for the disk.  If it is still covered, you may just be able to get away with reporting that the raid controller kicked it off, and then they'll send a replacement and you can send the questionable one back and let it be their problem.
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gopher_49Author Commented:
The admin ended up just rebuilding the array and it came back up.  Hopefully it's not a hardware issue.
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DavidPresidentCommented:
Things always happen for a reason.  Unless some human just popped it out, or latch wasn't sealed, something like that, then that disk probably experienced a lot of unrecoverable read errors.

If your data is much more valuable than the cost of a disk drive, then  buy a replacement now, put it in as a hot spare.  100% of disks fail, so you might as well be ready.
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