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Tutor

Dec 07, 2015

ReadyNAS 3220 Replacement disk offline

I have a ReadyNAS 3220, fully populated with 2TB disks. Recently, the disk in position 2x2 died. The RAID has been configured as RAID10, and had two hotspares. When the drive failed, the RAID trans...

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mdgm-ntgr

NETGEAR Employee Retired

Dec 07, 2015

Have you tried connecting that disk up to your PC, deleting the partitions off the disk, putting it back in the ReadyNAS and trying to add it again?

thedutchman
Tutor
Dec 08, 2015
I have not. This ReadyNAS is at a colocation facility, about 50 miles from me. Is there a way I could do this over SSH instead of pulling the disk and doing it on another computer?
thedutchman
Tutor
Dec 08, 2015
OK, so I SSH'd into the NAS. The disk in question is sdb. Running "lshw -class disk" shows the disk, with no mount point and no partitions. Running "fdisk -l" shows the disk, but throws the warning message "Disk /dev/sdb doesn't contain a valid partition table."

So, do I need to create a GPT on it manually?
- StephenB
  Guru - Experienced User
  Dec 08, 2015
  Have you tried support?
  - thedutchman
    Tutor
    Dec 08, 2015
    Reseating the drive again seemed to solve the issue. I'm not sure why it would- the ReadyNAS saw the disk prior to reseating, it just didn't add it back to RAID until it was reseated. Perhaps it needed to be formatted (done in prior steps), and then reseated.