Supermicro - XFS (snumbd6d): log I/O error -5

andrei perju

2/20/23, 3:42 PM

So, We have a supermicro server with the next hardware configuration:

CentOS 7 Softraid (because this supermicro configuration didn't support hardware raid..) / Partition is RAID 10 and the rest one is RAID 1

CPU: 2x AMD EPYC 7402 RAM: 512Gb DDR4 (16x 32Gb) 10x 2TB Intel SSD DC P4510 NVMe.

This server is a shared hosting one with CloudLinux, cPanel, etc.

Every 2 days, we receive the following error in the console:

Oct 18 23:11:19 toranaga kernel: XFS (snumbd4d): log I/O error -5

Oct 18 23:11:19 toranaga kernel: XFS (snumbd4d): Log I/O Error Detected. Shutting down filesystem

Oct 18 23:11:20 toranaga kernel: XFS (snumbd3d): log I/O error -5

Oct 18 23:11:20 toranaga kernel: XFS (snumbd3d): Log I/O Error Detected. Shutting down filesystem

Oct 18 23:11:20 toranaga kernel: XFS (snumbd1d): log I/O error -5

Oct 18 23:11:20 toranaga kernel: XFS (snumbd1d): Log I/O Error Detected. Shutting down filesystem

Oct 20 16:01:54 toranaga kernel: XFS (snumbd8d): log I/O error -5

Oct 20 16:01:54 toranaga kernel: XFS (snumbd8d): Log I/O Error Detected. Shutting down filesystem

Oct 20 16:01:54 toranaga kernel: XFS (snumbd2d): log I/O error -5

Oct 20 16:01:54 toranaga kernel: XFS (snumbd2d): Log I/O Error Detected. Shutting down filesystem

Oct 20 16:02:02 toranaga kernel: XFS (snumbd6d): metadata I/O error in "xfs_read_agf+0x8e/0x120 [xfs]" at daddr 0x423e1d801 len 1 error 5

Oct 20 16:02:02 toranaga kernel: XFS (snumbd6d): log I/O error -5

Oct 20 16:02:02 toranaga kernel: XFS (snumbd6d): Log I/O Error Detected. Shutting down filesystem

Oct 20 16:02:05 toranaga kernel: XFS (snumbd7d): log I/O error -5

Oct 20 16:02:05 toranaga kernel: XFS (snumbd7d): Log I/O Error Detected. Shutting down filesystem

Some advice what should we do? Thanks!

0 + 0

intel

ssd

supermicro

Brian

9/30/23, 3:21 PM

Does the device node for the xfs volume, i.e. /dev/mdXAY, vanish when you get these errors. If a xfs filesystem is above 85% full, the volume has trouble committing the log metadata, and so the file system log (xfs, zfs, ext4, btrfs are all logging file systems, whereas ext2 is not) fills up with commits. That in turn causes the kernel cache buffers to fail to commit. So, you've g

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