Array will not resync.

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Hello,

I cannot get my RAID 6 array to resync.

I'm using mdadm version v4.1. I've tried kernels 5.18.X, 6.0.X, and
6.3.X on Devuan (Debian) Linux.

% echo resync > /sys/devices/virtual/block/md127/md/sync_action

Does nothing. 

% mdadm --assemble --update=resync /dev/md127

Does nothing.

I should see a status change to resync with mdadm --detail /dev/md127 and
hear some activity from the drives.

I tried adding the verbose option, but it only lists the recognizing of
the drives and adding them to the array.

The array currently has some mismatches which need to be corrected. It's
currently registering all devices in "active sync" status and says that
it is "clean".

I tried setting the flag, in misc mode, to readonly and then back to
readwrite but that still doesn't allow the array to be resync'd.

In desperation, I tried unplugging one of the drives, it holds most/all
of the mismatches -- the SATA cable was going bad, and then I touch(1)ed a
file on the FS and unmounted the FS. Although the array recognized the
failure of the drive, it did not start resync the array upon adding the
drive back into the array.




Any ideas how to resync the array?

Thanks,
David




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