> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Roy Sigurd Karlsbakk > > I plan to setup a new system with four Crucial RealSSD 256MB SSDs for > both SLOG and L2ARC. The plan is to use four small slices for the SLOG, > striping two mirrors. I have seen questions in here about the > theoretical benefit of doing this, but I haven't seen any answers, just > some doubt about the effect. > > Does anyone know if this will help gaining performance? Or will it be > bad?
log and cache devices don't stripe. You can add more than one, and the syntax is the same as if you were going to create a stripe in the main pool, but the end result is round-robin for log & cache devices. It's tough to say how much this will benefit performance, unless you try it. PS. I'm only repeating what I believe to have learned by older posts on this list. I didn't go read the code myself or anything like that, so I acknowledge some possibility that something I've said is wrong. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
