Matthew Stringer wrote:
On Tuesday 04 December 2007 17:22:24 James Knott 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
Matthew Stringer wrote: 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.
There is no need to create the swap partitions as RAID drives. The simple solution is to use the ionice command to set the I/O priority of all swap partitions to the same value. The kernel then treats them in a manner similar to RAID 0. For performance reasons, you don't want anything to slow down swap. Bill Anderson WW7BA -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org