April 26, 20242 yr Hi, I use Unraid as a backup server. Every night I run rsync to backup files from other servers to unraid. This has been working fine for years. Recently, rsync has started freezing and crashing the array every night. There is high load and IOWait in top, but low cpu usage. I cannot see any errors on disks. Rsync processes go into D state and never wake up. The array cannot be stopped, it hangs on 'Sync Filesystems...' forever. Soft reboot and powerdown do nothing. A hard reset is the only way I have been able to get out of this. I can see from lsof and ps that the rsync process is stuck waiting in some IO, but I cant figure out exactly what, or how to resolve it. Could somebody cleverer than I please take a look at my diagnostics and suggest what I could try to track this error down and make stop rsync from stalling? Thankyou very much. vault-diagnostics-20240426-0935.zip Edited April 26, 20242 yr by Ascii227
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