Parity Disk error

[darkastorm]

Hello there,

 

Could someone help to try to find out what is the problem of the parity disk error?

The situation is I have 4 drives, all the same model HGST Ultrastar HC320 8TB

    1 is parity drive.

    3 drives in the array work just fine, no error.

The parity drive threw out blk_update_request I/O error randomly. Sometimes it works fine until the schedule parity check, sometime it just threw out blk_update_request I/O error randomly and I need to remove it from the parity drive list. But when I run the smart shot / long test, no error found, preclear disk a dozen times without error.

 

I have tried to change the SATA cable, SATA power cable, SATA port with no luck, so I assume there might be some problems of the drive anyway. So I bought another one, preclear the new drive without error. Then the same blk_update_request I/O error happens again when I change the new drive as the parity drive.

 

I really have no idea what is wrong / what to do next.

 

Any help is appreciated.

tower-diagnostics-20220629-1947.zip

[mathomas3]

I havent looked at the logs... but kinda sounds like a PSU issue... what hardware are you using?

[In2Photos]

Just now, mathomas3 said:

I havent looked at the logs... but kinda sounds like a PSU issue... what hardware are you using?

I agree. Having to use the switch on the PSU sounds like thermal or over current protection.

[mathomas3]

My thinking is that when the parity check is running, the power draw is at it's highest, thus drawing too much power.

 

if your PSU is less then 450 watts I would suggest getting a larger one... but let us know what hardware you have

[JorgeB]

Doesn't look like a disk problem, suggest swapping cables(both power and SATA) or slot with a different disk and see if the issue follows the disk.

[darkastorm]

The PSU is an unknown brand, label marked it as 550W. I will get another PSU to try anyway.

 

Thanks for you suggestion, will post the result here after I have replaced the PSU.

[darkastorm]

Hello guys,

 

Replaced the old PSU to a 800W PSU, now 4 drives and 1 parity drive, passed the first parity data check.

Let's keep it running till next parity check to look how it goes.

 

Thanks again you for the suggestion.

[darkastorm]

Hello Guys,

 

Just past the schedule party check, you guys are right, after the PSU was replaced, no more party disk error.

 

Thanks.

[mathomas3]

for reference I was recently running 13 hdd and 2 ssds on a 1200watt psu and a low power GPU... 

 

but like you, years ago I had a 450? watt(ten years ago) psu running roughly 6 hdd and I had something close to what was said here...

 

Glad it's fixed