Parity disk giving errors after adding 8TB disk

[prosper]

Hi

 

I've recently setup my first UNRAID NAS. I added an 8TB parity drive and three 3TB drives for data. Yesterday I added an extra 8TB drive and while it was doing a read check, it found 2 errors on the parity drive and UNRAID disabled the parity drive. I stopped the array, unassigned the drive, restarted, reassigned, .. When doing the parity check it found around 900 errors. On the newly added drive it then found 2 errors.

 

What I've done:

 

- Opened up my case and checked the connections. They seem fine. What I did notice: both drives that got errors are connected to a SATA expansion card

- Started the array and I'm running an extended SMART self-test. It's still running currently

 

I've attempted to take a look at the diagnostics dump, but not sure where to start. I've attached it. 

 

If anyone would be able to help, would be much appreciated!

prosper-diagnostics-20221214-0917.zip

[JorgeB]

Both devices connected to the Marvell controller dropped offline, note that we do not recommend using them with Unraid, one of the the common issues with them is disks being dropped without a reason.

[prosper]

5 minutes ago, JorgeB said:

Both devices connected to the Marvell controller dropped offline, note that we do not recommend using them with Unraid, one of the the common issues with them is disks being dropped without a reason.

Aha, is there a resource somewhere with controllers that are known to be working? The controller is new so I should be able to return it.

 

Edit: did some googling and found the post with recommended controllers myself

 

Thanks for the help and info!

Edited December 14, 2022 by prosper

[trurl]

2 hours ago, prosper said:

did some googling and found the post with recommended controllers myself

Just to make sure Google didn't give you the old recommendations, here is the current thread:

 

[prosper]

Thanks for the help everyone. Ordered a controller with one of the recommended chips and parity sync just finished without errors!