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BTRFS CSUM ERROR Raid 1 SSD Pool

Featured Replies

- Hey Guys I just woke up to see that one of my VMs wasn't booting and I ended up figuring out that the OS was corrupted due to btrfs errors.

- I currently identified 2 Bad files, my Windows VM image and my Docker Image. 

- Since the errors are displayed on  nvme0n1p1, I thought about formatting that drive and then restoring the raid array, but I'm not sure if that is the best option.

- Scrub is not able to correct the errors as seen Below

- I would appreciate any help on how to move forward and restore my Docker Image

 

// Scrub Results

_________________________________________________________________________

UUID: 8911909d-57ec-416c-ad16-bc389aa2f302 Scrub started:

Wed Jun 23 10:14:04 2021 Status:

finished Duration: 0:01:52 Total to scrub: 918.01GiB Rate: 8.20GiB/s

Error summary: csum=30826 Corrected: 0 Uncorrectable: 30826 Unverified: 0

_________________________________________________________________________

 

// Drive Info

_________________________________________________________________________

-Critical warning0x00

-Temperature39 Celsius

-Available spare100%

-Available spare threshold5%

-Percentage used2%

-Data units read15,633,440 [8.00 TB]

-Data units written47,638,644 [24.3 TB]

-Host read commands60,382,144

-Host write commands949,992,574

-Controller busy time860

-Power cycles137

-Power on hours5,030

-Unsafe shutdowns83

-Media and data integrity errors0

-Error information log entries168

-Warning comp. temperature time0

-Critical comp. temperature time0

_________________________________________________________________________

 

 

Error Sample

_________________________________________________________________________

 

Jun 23 10:22:02 Saturn kernel: BTRFS warning (device nvme0n1p1): csum failed root 5 ino 75533 off 589451264 csum 0x8941f998 expected csum 0x302e9db2 mirror 2
Jun 23 10:22:02 Saturn kernel: BTRFS error (device nvme0n1p1): bdev /dev/nvme0n1p1 errs: wr 0, rd 0, flush 0, corrupt 647379, gen 0
Jun 23 10:22:02 Saturn kernel: BTRFS warning (device nvme0n1p1): csum failed root 5 ino 75533 off 589451264 csum 0x8941f998 expected csum 0x302e9db2 mirror 2
Jun 23 10:22:02 Saturn kernel: BTRFS error (device nvme0n1p1): bdev /dev/nvme0n1p1 errs: wr 0, rd 0, flush 0, corrupt 647380, gen 0
Jun 23 10:22:02 Saturn kernel: BTRFS warning (device nvme0n1p1): csum failed root 5 ino 75533 off 589451264 csum 0x8941f998 expected csum 0x302e9db2 mirror 1
Jun 23 10:22:02 Saturn kernel: BTRFS error (device nvme0n1p1): bdev /dev/nvme1n1p1 errs: wr 0, rd 0, flush 0, corrupt 522857, gen 0
Jun 23 10:22:02 Saturn kernel: BTRFS warning (device nvme0n1p1): csum failed root 5 ino 75533 off 589451264 csum 0x8941f998 expected csum 0x302e9db2 mirror 2

_________________________________________________________________________

saturn-syslog-20210623-1502.zip saturn-diagnostics-20210623-0811.zip

  • Community Expert

There's a lot of data corruption detected, first thing is to respect the max officially supported RAM speed for your CPU, since that's a known source of data corruption with Ryzen, also not a bad idea to run memtest after that, once it's fixed restore files from backup.

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