Completely discontinuing an array
Since I have been doing a lot of array creation related to the RAID-5 performance thread, I want to make the array "go away" so nothing tries to start, stop, or otherwise use the array. I tried setting the superblock to zero, but that results in boot warnings for every partition. I can change the partition type to something other than RAID, but that rapidly gets ugly since I really want some partitions around for ad-hoc testing.
Is there something which will stop an array and dismember it? Like:
mdadm -S --nuke /dev/md5
or similar, to stop the array and mark it as not in use so boot won't try doing anything with it.
If there isn't such a feature, or an easy way to get the desired end result, could you consider that a minor feature request? Preferably an option to stopping the array, perhaps a magic superblock other than zero, to tell the boot "I know it's dead, deal with it."
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bill davidsen <[email protected]> CTO TMR Associates, Inc Doing interesting things with small computers since 1979