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Mirrored cache drive upgrade resulted in unmountable: No file system

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Solved by JorgeB

  • Author

I don't understand next step... Yesterday I posted new diags after assigning old (256gb ssd) to be the only cache pool device. 
Or should I assign the other 256GB ssd?

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  • JunkoZane
    JunkoZane

    It worked out fine, not sure why I had problems the first two times.  Anyways, thank you for your time and help! Appreciate it 

  • JunkoZane
    JunkoZane

    Thank you

Posted Images

  • Community Expert

The btrfs balance was still going on, I want to make sure it finished, post new diags without changing anything else.

  • Community Expert

Balance finished without errors, you can now add the 1TB device to this pool, post new diags if there are any issues.

  • Author

It worked out fine, not sure why I had problems the first two times. 

Anyways, thank you for your time and help! Appreciate it 

  • Author

Happy Easter to all who celebrate it :)

Could you please help me out with one more case?
Recently I got a warning that my syslog is 100% full, turns out that it got spammed with BTRFS errors... 
Is it related to my previous problem, or should I change the sata cable that connects sdg to the motherboard?

 

the-beast-diagnostics-20230409-2143.zip

  • Community Expert
Apr  4 22:25:36 The-Beast kernel: ata6.00: disable device
Apr  4 22:25:36 The-Beast kernel: ata6: EH complete
Apr  4 22:25:36 The-Beast kernel: sd 6:0:0:0: [sdg] tag#21 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=DRIVER_OK cmd_age=121s
Apr  4 22:25:36 The-Beast kernel: sd 6:0:0:0: [sdg] tag#21 CDB: opcode=0x2a 2a 00 00 10 9e c8 00 0a 00 00
Apr  4 22:25:36 The-Beast kernel: I/O error, dev sdg, sector 1089224 op 0x1:(WRITE) flags 0x104000 phys_seg 20 prio class 0

 

This device dropped offline, start by replacing cables, also see here for better pool monitoring.

  • Author

Hi there,

"Docker Service failed to start." after changing cables. I'm starting to feel guilty for bothering you...

Could yo uplease help me to get my server back ? :)

the-beast-diagnostics-20230414-2112.zip

  • Author

Does that mean I'll have to reconfigure all my docker containers? If so, could it be possible to use very first drive that I took out of the system (256gb SSD)?

Actually I already tried that, but cache pool just displayed error: UNMOUNTABLE: NO POOL UUID

Edited by JunkoZane

  • Community Expert
12 hours ago, JunkoZane said:

Does that mean I'll have to reconfigure all my docker containers?

No, see the link, but first post new diags.

  • Author

I somehow misinterpreted info in that link...

Also, it's kind'a strange that after running scrub with "repair corrupted blocks" enabled I got a bunch uncorrectable blocks. But after second time I did same thing - I have cache pool with 0 uncorrectable blocks

the-beast-diagnostics-20230418-2152.zip

  • Community Expert
11 hours ago, JunkoZane said:

But after second time I did same thing - I have cache pool with 0 uncorrectable blocks

It doesn't make much sense, but if it's not detecting errors at the moment see how it goes.

  • 2 weeks later...
  • Author

Hi there,
unfortunately I'm getting SDE (one of cache pool drives) errors again...
If not cable, what else could it be? MB, the drive itself?

Thank you in advance

the-beast-diagnostics-20230503-2348.zip

Edited by JunkoZane

  • 1 year later...
  • Author

Hello again,

sorry somehow I missed your last comment.
 

A year passed by with docker failing to start from time to time. I just deleted the docker image every time and recreated containers. I've tried replacing cables and motherboard. Now I suspect new SSD was faulty all along (since this whole thread was started after I installed them into server to replace my old cache drives). Now I'm prepared to replace one of those SSDs to end this misery once and for all. 

What should be the replacement sequence?

Appreciate your help! (to such noob as myself :D)

the-beast-diagnostics-20240702-1336.zip

  • Author

Despite these errors?
image.thumb.png.b58057ffa9dcc47ca5e18662003f496c.png

  • Community Expert

That's the docker image, you can just recreate it, but taking another look at the syslog, there are a LOT of errors for both pool devices:

 

Jul  2 13:25:39 The-Beast kernel: BTRFS info (device sdf1): bdev /dev/sdf1 errs: wr 50487191, rd 1634110, flush 8901094, corrupt 8507526, gen 134
Jul  2 13:25:39 The-Beast kernel: BTRFS info (device sdf1): bdev /dev/sdg1 errs: wr 174356609, rd 28754240, flush 20845342, corrupt 37956524, gen 14162

 

They could be old or not, so before doing anything else run a correcting scrub and post the results.

  • Community Expert

Try again, if it still aborts I don't recommend trying a replacement, try to backup whatever you can instead, then create a new pool with the new device.

  • Community Expert

Should be OK now, but just make sure, reset the stats with

 

btrfs dev stats -z /mnt/cache

 

Then run another scrub, then post output of

 

btrfs dev stats /mnt/cache

 

  • Community Expert

Yes, pool should be OK

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