[CentOS] problem with swap and upgrade to 4 from 3.3
Joshua Baker-LePain
jlb17 at duke.eduFri May 6 21:58:09 UTC 2005
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On Fri, 6 May 2005 at 9:03am, Daniel J. Cody wrote > Hey Peter, > > I guess I could set the swap back to an unmirrored set, run the upgrade > > from the CDs then mirror it again, but this is not ideal, does anyone > > have any suggestions as to how to fix this little RAID niggle with the > > swap caused by not RAIDing the swap parition originally on install? > > I wouldn't personally recommend using software raid on swap partitions > since it causes all sorts of problems like you're describing. If you > want to get raid type performance from your swap partitions, I'd suggest > just letting the kernel itself handle that. The main purpose of putting swap on a mirrored array is not performance. It allows the system to stay up and running should a disk fail. Mirroring the system disk is pretty much pointless if the system is going to die upon losing a disk anyway b/c half the swap is now gone. -- Joshua Baker-LePain Department of Biomedical Engineering Duke University
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