Buffalo Forums

Having an interesting yet frustrating issue.  I have a TS3400, set up with 4 2TB drives in a RAID 10.   Got a notification today that one of the drives (Drive 4) failed.  Checking the drives in the web console, the capacity of all drives was 1831.4GB, and drive 4 was certainly failed.  However my RAID 10 status was normal.  I tried replacing the bad drive, but after dismounting it, my RAID status went to degraded.  Popped in a new drive (same WD drive as what's in there) and it formatted to 1830.3.  It wouldn't let me add the drive to the array, assuming because the formatted drive space was smaller than the other 3 drives.  Tried to format the drive in Windows prior to adding it to the TS, and same result.  Any ideas what I may have done wrong?  Or is the TS3400 just being dumb?  I really can't be wiping the entire array when a drive fails.  That pretty much defeats the purpose.

The mistake was formatting it, this should not be done.
Select the disk on the Drives - Drives section -> Remove disk -> Wait 2 minutes, -> Select the disk again -> Rediscover disk, it will then show as unformatted.

Then go to Drives -> RAID -> Array1 -> Select the disk -> Recovery RAID.

Quote from: davo on June 15, 2017, 03:06:26 AM
The mistake was formatting it, this should not be done.
Select the disk on the Drives - Drives section -> Remove disk -> Wait 2 minutes, -> Select the disk again -> Rediscover disk, it will then show as unformatted.

Then go to Drives -> RAID -> Array1 -> Select the disk -> Recovery RAID.

Sorry, i want to be totally clear about this....   So if a drive fails, just remove the drive and pop in a new, completely unformatted drive and the the option for recover raid will no longer be greyed out?

Correct.

Thank you very much