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disable and check raid badblocks

For context, see https://raid.wiki.kernel.org/index.php/The_Badblocks_controversy. The issue is that using --replace on a RAID array can run into errors if the RAID badblocks feature is enabled (or is it only if there are bad blocks?)

checking for raid badblocks on the array

Do this for each array member:

mdadm --examine-badblocks /dev/sdi1

Disabling badblocks

This only works if there are no RAID bad blocks in the RAID array. The option to force removal of badblocks will apparently cause corruption. See the above article.

mdadm ... --assemble --update=no-bbl