> Does anybody really want to wait while their swap data is duplicated
> out to multiple disks by a CPU that is working to free up memory to
> run applications?
>
> Isn't Swapping slow enough already?
>
> Why not simply swap on multiple disks, get Hardware RAID-5 for swap
> or buy RAM?
>
If ANY swap partition is in use and it fails, the kernel will lock
up. Putting the swap on raid eliminates this problem, but at a price
of waiting for resync in the event of a failure and replacement of
the offending disk. This is an old topic and the work-arounds are
well documented. Until the issue of buffering is handled in some
other manner it is the best solution for the swap. A better way to
handle it if you are really worried about resources is to start with
adequate ram in your *nix box to start with so swap is an infrequent
event.
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