Data disk disabled after parity swap


Recommended Posts

11 minutes ago, Starkiller said:

Not sure what happened with disk 4. That disk was also almost full

  

On 9/17/2022 at 8:11 AM, trurl said:

Emulated / missing disk4 is mounted but empty. All other disks are very full (not recommended).

 

Is it expected that disk4 is empty? Did you format it?

 

Link to comment

I was really wondering whether you had formatted the emulated disk4 slot rather than the physical disk 32AZ. I guess it doesn't matter, we need to see what is on 32AZ.

 

If you rebuild disk4 now you will get exactly what is emulated, an empty disk.

 

Everything is so out-of-date about your system. I don't know if you can even update any of your plugins on that old version. And we really need to install Unassigned Devices to see if we can mount 32AZ.

 

Go to the Apps page and see if you can install Unassigned Devices.

Link to comment

I guess you could just New Config 32AZ back into the array and rebuild parity since there is no point in rebuilding slot4. Might even be better to New Config with 32AZ in slot4 and nothing assigned as parity since it isn't clear if your hardware is stable enough to rebuild anything. Then we could go from there.

 

Do you have backups of anything important and irreplaceable?

Link to comment

Looks like you updated Unraid, which is good.

 

Maybe the old version you were on didn't have good enough warnings against formatting a disk in the array. I know many have made that mistake when a drive is unmountable thinking they can rebuild it, even on more recent versions with better warnings. Format is a write operation that updates parity.

Link to comment
1 hour ago, trurl said:

Looks like you updated Unraid, which is good.

 

Maybe the old version you were on didn't have good enough warnings against formatting a disk in the array. I know many have made that mistake when a drive is unmountable thinking they can rebuild it, even on more recent versions with better warnings. Format is a write operation that updates parity.

So for now, what should I do? Stop the array and add parity again and I'm good to go?

 

If so, what are the steps to convert the filesystem of the existing disks as they are still in reiserfs now.

 

After that I´ll replace 2 existing data disks with a new 18TB and 10TB disk.

Link to comment
48 minutes ago, Starkiller said:

Stop the array and add parity again

and let parity rebuild. That will get you back to parity protection and will also be a good test of your system.

 

48 minutes ago, Starkiller said:

replace 2 existing data disks with a new 18TB and 10TB disk

The normal replace/rebuild procedure will result in the replacement disk having the same filesystem as the replaced disk.

 

Since disk4 is (mostly) empty, reformat it as XFS and you will already have one disk converted. Then you could copy files from the smaller disks to disk4, so they can be reformatted XFS. At some point you could rebuild an already converted disk to a new larger disk. Repeat as necessary.

 

Make sure when you format that only the disk you want to format is listed as available to format. You don't want to format a disk that should have data on it. If any others are in the list to format they would need to have their filesystem repaired so they aren't listed for formatting.

Link to comment
21 hours ago, trurl said:

and let parity rebuild. That will get you back to parity protection and will also be a good test of your system.

Have started this but speed seems very slow unfortunately (1MB/sec at max for the moment). Dashboard shows UMDA CRC errors on several disks.

As I've already replaced the motherboard, processor and cables my only guess is that replacing the PSU might solve the problem?

toschestation-diagnostics-20220921-2041.zip

Link to comment
1 hour ago, trurl said:

Connection problems disks 1,3

 

Are you using latching SATA cables? Some WD drives may not play well with those.

 

Are you bundling data cables? Don't

 

Do all drive cables have plenty of slack so they can sit squarely on the connector without any tension?

Yes, some of theme have latching SATA cables. Never had problems with those in the past and wasn't aware that this could be a problem with WD drives. I'll guess I'll order some non-latching ones.

None of the SATA cables are bundled and they have enough space to sit correct on the connector.

Link to comment
On 9/21/2022 at 10:56 PM, trurl said:

Any power splitters?

Yes, I've got 2 Molex to Sata splitters. 

 

I think I'm better of finding a PSU with at least 9 SATA power connectors (if that should exist).

 

At the moment, I've changed the SATA data cables for disk 1 and 3.

 

Booted the server and the array and parity-sync started immediately at 2.9GB/sec.

 

That's the good news. The bad news is that for disk 3 Unraid gives me a red cross (device disabled - contents emumated) - unmountable: wrong or no file system.

 

How is this possible? Before changing the cables there wasn't anything with the file system and now, after changing the SATA data cable this...

 

For the moment, I've paused parity sync.

toschestation-diagnostics-20220923-1511.zip

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.