Hi,

I saw a report saying one of the disks in the array was in an error rate and it was disabled, it also had 204 errors. 

 

i ran an extended SMART test on the drive (attached below). 

 

advice on how to proceed would be appreciated. if the drive is ok to continue using or if replacement is urgent etc. 

 

thanks for the help.

ST4000VN000-1H4168_Z30682YK-20220109-0142.txt

Edited January 12, 20224 yr by MadSwordfish

attach diagnostics to your NEXT post in this thread.

oops sorry. diagnostics attached.

unapollo-diagnostics-20220109-0221.zip

Disabled disk5 looks OK. Not so sure about disk1 though. Run an extended SMART test on disk1.

Great thank you. I just started disk1. I will report back when it's completed.

Hi, 

 

sorry for delay it took a really long time.

 

attached is the extended smart results of drive1 as requested.

 

Thanks.

unapollo-smart-20220111-0111.zip

That looks OK but a medium error on that disk was logged earlier in syslog.

 

Disabled disk5 has to be rebuilt. Unraid disables a disk when a write to it fails for any reason. It has to because the failed write makes it out-of-sync. After disabling, the disk isn't used again. Instead, all access to the disk is emulated from the parity calculation by reading parity and all other disks. That initial failed write, and any subsequent writes, are emulated by updating parity, and can be recovered by rebuilding.

 

Emulated disk5 is mounted and is over half full, so looks like that is all working well.

 

It's always safer to rebuild to a spare, and so keep the original just as it is in case there is any problem rebuilding. But it's probably OK to rebuild to the same disk if you don't have a spare.

 

 

thanks a lot. no i don't have spare so i am rebuilding to it. 

 

i have been saving up for a while and plan to replace my second parity and at least one of the drives with the same 16TB drive i have for parity 1 at £250ish they are a bargain.

 

thank you for the help.