Matthew Stringer wrote:
On Tuesday 04 December 2007 17:22:24 James Knott wrote:
Matthew Stringer wrote:
On Tuesday 04 December 2007 15:27:06 James Knott wrote:
Matthew Stringer wrote:
I don't normally SoftRAID the swap partitions as it would be faster
just to have multiple ones instead (you're not limited to one).
Given one of the goals of RAID is to keep the system running when a
drive fails, what happens when a drive containing swap croaks?
Your available swap space would be reduced, doesn't cause the system to
fail.
And when it goes to retrieve the contents of that swap that's no longer
there? Drives do fail occasionally, when the system is running.
If you swap over multiple partitions the data is automatically striped, it
usually copes OK if a drive blobs Linux is fairly stable these days when it
comes to read/write errors. I think you're splitting hairs if you think that
sotfRAID1 gives you enough extra stability which outweighs the reduction in
performance.
Striping does not provide any protection from device failure.
I think you have it confused with MIRRORING, which does provide
some safety against device failure.
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