Disk in Array wit a huge amount of writes and reads

[Twan_]

Hi

 

im running Unraid v6.9.0-beta35

i have 1 disk in my array that has 140,730,575,631,657 (140 trillion) writes and 23,071,762,361,064 (23 trillion) reads, the server has been up for 20 hours. the disk now has 10 errors and is disabled.

 

What are my options?

tower-diagnostics-20210408-1239.zip

[JorgeB]

1 minute ago, Twan_ said:

has 140,730,575,631,657 (140 trillion) writes and 23,071,762,361,064 (23 trillion) reads,

This is usually a sign of a device dropping offline, confirmed by the syslog:

 

Apr  7 16:30:47 Tower kernel: sdh: detected capacity change from 600127266816 to 0

 

Check/replace connections and post new diags after array start.

[Twan_]

do i need to restart the server or just the array?

 

[Twan_]

7 minutes ago, JorgeB said:

This is usually a sign of a device dropping offline, confirmed by the syslog:

 

Apr  7 16:30:47 Tower kernel: sdh: detected capacity change from 600127266816 to 0

 

is there a way for me to check which serial number this disk has?

I did remove a drive but the drive with so many writes is sdd not sdh, in the smart data sdh is a 500gb disk but that is a different disk than the sdh disk from the syslog from yesterday

[trurl]

On mobile now so can't look at Diagnostics 

 

When a disk is dropped it will reconnect as a different device and not assigned 

[JorgeB]

You have multiple disk errors on the log, but the advice remains for disk1:

33 minutes ago, JorgeB said:

Check/replace connections and post new diags after array start.

 

[Twan_]

i restarted and reseated the disk, everything seems to be working

tower-diagnostics-20210408-1839.zip

[JorgeB]

Disk1 is rebuilding but everything looks fine so far, you can also swap cables/slot with another disk just to rule that out if it happens again.

[Twan_]

i cant swap it out with another disk, because i only have an array of 1 disk and parity

[JorgeB]

I meant in the server, use different cables or physical slot.

[Twan_]

i think a different cable or other hba would be best practice, because now my parity drive just got errors

[JorgeB]

Yep, PSU could also be the problem.

[tech_rkn]

HI, i had on a totaly different system a disk showing the same behaviors.  i did fix the problem using a new sata cable.

 

7 months later, the same disk shown the same troubles, but this tiime it was a real failure due to vibrations.

 

Could it be that your disk is a SMR hard drive as mine ( 4TO WD Red NAS WD40EFAX )

[Twan_]

i know it is not a SMR drive, because it is a 600GB enterprise SAS 10k Disk