Dag-Erling Smørgrav <des_at_des.no> writes: > Doug Rabson <dfr_at_rabson.org> writes: >> Dag-Erling Smørgrav <des_at_des.no> writes: >> > David Duchscher <daved_at_tamu.edu> writes: >> > > So does anybody know of a battery backed NVRAM card that can be used >> > > with FreeBSD that the ZIL could be offloaded to? >> > Any CF card or similar will do. You don't need battery backup for >> > flash memory. >> >> THis may also have to wait for a future version of ZFS. I remember >> reading about this kind of thing as an upcoming feature in Solaris. I >> believe the way this feature would work is that ZFS would allow creating >> the ZIL on a different pool to the filesystem - i.e. create a zpool on >> the CF card and get the ZIL to live there. > > AFAIK this is already implemented in ZFS, though I'm not sure Pawel has > merged it into FreeBSD yet. http://www.opensolaris.org/os/community/zfs/version/7/ You simply add a 'log' vdev to a pool. It's included in snv_75, maybe earlier. /KennethReceived on Fri Dec 14 2007 - 13:07:24 UTC
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