Paul Archer <parcher@xxxxxxx> wrote: > I hate to ask such a basic question, but since I can't find a homepage for > cFS/FSc development (is there one?) that would answer this question, here > goes: This is it for now: http://people.redhat.com/~dhowells/cachefs/ And: http://people.redhat.com/steved/fscache/ > Is cachefs/fscache usable? Yes... but it may well change. I'm trying to get it upstream. > And if so, is there a HOWTO or instructions for setup somewhere? Documentation/filesystems/caching/ in the kernel sources with the patches applied. > I've seen references to a couple of mount options, but from my experience > with cachefs on Solaris, I'm guessing there's gotta be some initial work to > specify where the backing store goes on disk, and that sort of thing. There is, but it's as minimal as I can make it: echo "dir /dir/where/I/want/my/cache" >/etc/cachefilesd.conf cachefilesd for example. /dir/where/I/want/my/cache must be a directory on a filesystem that supports xattrs and bmap (ext3 will do if you turn xattrs on). You can tune the free space parameters as per the documentation. I recommend you choose a filesystem with a block size of PAGE_SIZE (4KB on i386) - this can be tuned with e2fsck. David