Help/advice for degraded hard drive

[GabeL]

Hopefully this is the right place for this. We have been running our HexOS server about a year and just recently one drive has a degraded status. Just wondering what this means/what I should do.

 

Disk 7

ST18000NM003D-3DL103

 

Capacity

18 TB

Type

Hard disk drive

Healthy

Yes

Serial

ZVTGGZES

Device

sdh

Status

DEGRADED

Temperature

33° C

[Dylan]

Hi @GabeL This typically means one of three conditions has been met:

1. A drive has failed
2. A connection issue
3. There are read/write errors.

If the drive has failed, it should be replaced. If somehow a drive experienced a connection failure, reset connections and restart. Read/write errors are indicative of a drive ABOUT to fail and that drive should either be repaired or replaced.  

[Bonding1930]

I'm running into a similar issue on a system. 

I have: Disk ST14000Naa11 ZHZ48MVX is FAULTED

Say  I don't want to replace the drive. Instead I would like to just let another drive be the backup. There are 6 14TB drives for a total of  66.96 TB.  But I'm only using 2TB so far of the space. Disk 3 has faulted, and I would be okay with only having 5 14TB drives. 
How do I do this?

[sunny_raven]

The first and best thing to do may be to shut down the server and try to disconnect and reconnect the drive and the connection to the storage card if you're using one.

Re-seating the connector fixed the issue for me when I got a degradation warning.

 

In terms of reducing the pool, AFAIK, you can only expand the pool or replace the drives. But I would let others confirm on that front.