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ReadyNAS RN3220 Volume is Degraded but all green lights & no errors on disks
Hello, I'll start by stating I do not know what this "*Select Location" thing is while creating this discussion, so I apoligize if I used the wrong "Location". Here is the issue: I have a Ne...
This was caught in the spam filter for a while, so I just saw it.
md1 is the degraded volume (sdj is missing)
lfrye wrote:
md1 : active raid6 sde2[0] sdc2[6] sdd2[5] sdb2[4] sdh2[3] sdi2[2]
2616320 blocks super 1.2 level 6, 512k chunk, algorithm 2 [7/6] [U_UUUUU]
md1 is the swap partition, it isn't part of your array. But still it should be fixed.
I suggest testing sdj in a windows PC (using lifeguard for Western digital, seatools for Seagate). After the long read test, you can also run the destructive write-zeros test. That will pick up issues that are missed by the read-test - and it will also unformat the drive (which is needed before you try adding it back to the array).
FWIW, it is possible to manually add sdj to this md1 via ssh (and paid support could do this for you). But you should test the disk anyway, since we don't know what failed the first time.
Hi StephenB,
There is not a drive with sdj labeling. I have drives labeled sda-sdi.
After rebooting the NAS device the RAID 6 rebuilt and appears good.
Thank you for your follow up,
Leif
lfrye wrote:
There is not a drive with sdj labeling. I have drives labeled sda-sdi.
After rebooting the NAS device the RAID 6 rebuilt and appears good.
Likely the drive got relabeled when you rebooted.
Get a fresh set of logs, and look at mdstat again. Make sure that md1 lends with algorithm 2 [8/8] [UUUUUUUU] - with no _ in the [U...] part.
No underscores in the U strings. See below:
md1 : active raid10 sda2[7] sdb2[6] sdi2[5] sdc2[4] sdd2[3] sdh2[2] sdf2[1] sde2[0]
2093056 blocks super 1.2 512K chunks 2 near-copies [8/8] [UUUUUUUU]
md127 : active raid6 sde3[0] sda3[8] sdb3[5] sdc3[6] sdd3[7] sdi3[3] sdh3[2] sdf3[9]
17552488704 blocks super 1.2 level 6, 64k chunk, algorithm 2 [8/8] [UUUUUUUU]
md0 : active raid1 sde1[0] sda1[8] sdb1[5] sdc1[6] sdd1[7] sdi1[3] sdh1[2] sdf1[9]
4190208 blocks super 1.2 [8/8] [UUUUUUUU]Great - everything looks fine.
Thank you StephenB for your follow though. I truly appreciate it.
Thank you,
Leif
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