Scott Ferguson wrote at 2011-08-28 10:19 -0500: > On 29/08/11 00:03, green wrote: > > Scott Ferguson wrote at 2011-08-27 08:50 -0500: > > > I don't imagine upgrading will make much difference - the controller > > > distributes the writes evenly, for which reason I reserve 25% of > > > space when installing (instead of the default 10%). NOTE: I could be > > > wrong about that - I'm just guessing. > > > > Hmm, that reserves 25% for root use only, something that occurs above the > > filesystem level. > > Is that a specific area that's reserved - or just an amount of space > kept free for root? mke2fs(8): "percentage of the filesystem blocks" I read that as just an amount of space reserved so that if a regular user fills up the filesystem, he is denied further writes while root processes can still write. > Currently I use ext3 which has (major) fragmentation problems when > it runs short on space (90-95% of space) - especially when used for > lots of frequent, small writes as it is. mke2fs(8) does mention using a reserved-blocks-percentage to reduce fragmentation. But it only limits user processes.
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