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#38 Re: Migrating To RAID1 Mirror on Sarge Posted by Anonymous (64.4.xx.xx) on Thu 23 Nov 2006 at 06:34 I have expereince - Depends on how much swap space you have, how much of your stuff is swapped to disk, and which processes are swapped. If you have a little memory and a lot of swap, and everything is swapped to disk, and some of those processes are moderately important (except init, being the first process to start, and memory being a first come, first serve...), you can have some problems with a failed disk. Or, if a really dumb process has a memory leak (that never happens...) and has consumed a lot of swap and the drive fails, you can be left with a frozen machine. I raid1 a few partitions together and mkswap the md*. There is no performance hit, other than you have only have half the swap that you would otherwise, but with harddrive space being so cheap now days (750GB for 350$, and that's the biggest drive ever. I remember spending 300$ for a 850mB drive when 1.2GB was out), it's kinda dumb not to toss a straight 2gb into swap. At worst, applications swap to disk as fast as they would otherwise, and you can get them pulled back into memory twice as fast. At best... well, sorry, that's your only option :)

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