So I have the volume degraded message which I saw once before when I blew a drive, however this time all my drives are showing up in the smart status as green.
So I spent some time on the forums and saw some things in peoples logs about current and uncorrectable sector counts, but all my disks are at 0 in the volume log.
However in my mdstat log it says my second drive has been removed, even though it hasn't. I posted below
/dev/md/server-0:
Version : 1.2 Creation Time : Sat Mar 24 08:34:42 2018 Raid Level : raid5 Array Size : 19510844160 (18606.99 GiB 19979.10 GB) Used Dev Size : 3902168832 (3721.40 GiB 3995.82 GB) Raid Devices : 6 Total Devices : 5 Persistence : Superblock is persistent
Update Time : Sat Apr 21 18:31:20 2018 State : clean, degraded Active Devices : 5 Working Devices : 5 Failed Devices : 0 Spare Devices : 0
Layout : left-symmetric Chunk Size : 64K
Name : 43f65fee:server-0 (local to host 43f65fee) UUID : 36881ec7:fe01ca74:cf066349:4dccda40 Events : 1452
Number Major Minor RaidDevice State 0 8 3 0 active sync /dev/sda3 - 0 0 1 removed 2 8 35 2 active sync /dev/sdc3 3 8 51 3 active sync /dev/sdd3 4 8 67 4 active sync /dev/sde3 5 8 83 5 active sync /dev/sdf3
Whats the deal? That HD is brand new, did it fail already? If not, how do I get the NAS to start using that disk again?
Hi @armybill, if the problem still persists, lets just trust the log (you said "However in my mdstat log it says my second drive has been removed, even though it hasn't.").
I would shutdown the nas and remove the concerned disk (Make sure you pick the correct one). Then carefully re-insert it, reboot the nas and see, whether the drive is recognized again.
