> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Marty Scholes > > What appears to be missing from this discussion is any shred of > scientific evidence that fragmentation is good or bad and by how much. > We also lack any detail on how much fragmentation does take place.
Agreed. I've been rather lazily asserting a few things here and there that I expected to be challenged, so I've been thinking up tests to verify/dispute my claims, but then nobody challenged. Specifically, "the blocks on disk are not interleaved just because multiple threads were writing at the same time." So there's at least one thing which is testable, if anyone cares. But there's also no way that I know of, to measure fragmentation in a real system that's been in production for a year. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
