On Tue, Oct 12, 2010 at 08:49:00PM -0700, Edward Ned Harvey wrote: > > From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > > boun...@opensolaris.org] On Behalf Of Ray Van Dolson > > > > I have a pool with a single SLOG device rated at Y iops. > > > > If I add a second (non-mirrored) SLOG device also rated at Y iops will > > my zpool now theoretically be able to handle 2Y iops? Or close to > > that? > > Yes. > > But we're specifically talking about sync mode writes. Not async, and not > read. And we're not comparing apples to oranges etc, not measuring an > actual number of IOPS, because of aggregation etc. But I don't think that's > what you were asking. I don't think you are trying to quantify the number > of IOPS. I think you're trying to confirm the qualitative characteristic, > "If I have N slogs, I will write N times faster than a single slog." And > that's a simple answer. > > Yes. >
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