Update - if the array can't stop due to "Retry unmounting shares" in 6.12.0 - 6.12.2, the quick fix is to open a web terminal and type: umount /var/lib/docker The array should then stop and prevent an unclean shutdown.   (It is possible the array won't stop for other reasons, such as having a web terminal open to a folder on the array. Make sure to exit any web terminals or SSH sessions in this case)   We have a fix in the 6.12.3-rc3 prerelease, available here: The
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