- There has been a lot of discussion about whether swap was stable on
RAID devices. This is a continuing debate, because it depends highly on other aspects of the kernel as well.
Well, the reasoning about the kernel being able to find stuff in swap if the partition was mirrored kind of makes sense. Where I work, we used to put use two separate partitions for swap. Whenever a disk went down, the box was likely to crash too and so we would find out about the disk after a reboot. After we made those partitions a mirror of one another for swap, we now don't get crashes and we get notifications of a disk going down.