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3

It all depends on how you set it up. With ten disks in RAID 1, you get a single disk capacity, with plenty of redundancy: if any 9 disks fail, the data is still there on the single remaining disk. This sounds weird but sometimes you see it as a mdadm RAID 1 for the /boot partition, while everything else is RAID 5/6/10 - which the bootloader might not know ...


3

Please check the mirror segment type with lvs -o name,segtype: if it's raid1, it should be safe to reboot if you must, although you might lose some progress. If the segment type is the legacy mirror, the same will apply to you only if there is a separate on-disk mirror log segment in use. This mirror type includes a --mirrorlog setting with several options: ...


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Sorry, I did not intend my earlier comment as a chastisement, but more to raise awareness of the trap of using hardware RAID in small-scale settings. You're not the first one who has ended up in a bad situation like that, and I'm afraid you won't be the last one either. I was against comment length limit, so it ended up harsher than needed. dmraid supports ...


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