I am running Mac OS Sequoia 15.4.1 and SoftRAID 8.5 on a Thunderbay 4. I haven't had any issues show up from SoftRAID itself under normal operations. I have, however, recently noticed that when I run DiskWarrior 5.3.1 on my RAID 5 volume to rebuild the directory to improve efficiency, it successfully rebuilds the directory but then SoftRAID reports i/o errors, degraded, and failed notices. I can consistently reproduce this behavior. SoftRAID does not report these issues outside of running DiskWarrior on the volume. What would cause this behavior? I have attached screenshots and the report from SoftRAID (hopefully the images aren't broken).
Just clear the IO counters. This is an old issue that sometimes happens, it essentially means the disks were asked to read from a non existent location, so they generated an IO error. Not a big deal. (its very difficult to fix, since we track IO errors and the driver cannot tell what caused the error, just that there was an error)
When I clear the I/O counters and errors, the RAID still shows "degraded - failed" and the individual disks still show "data and parity disk - failed". I have to use the Recover Failed Disks option to make the volume display normally.
That is correct. When all the disks generate IO errors, you often have to use "recover failed disks".

