My understanding is that there's never any need for a reader to wait for a write in progress. ZFS keeps all writes in memory until they're committed to disk - if you ever try to read something that's either waiting to be, or is being written to disk, ZFS will serve it straight from RAM.
One question I do have after reading this again though is: Leal, do you have the slog on the same controller as the disks? Have you tested whether reads are also blocked if you're running on a separate controller? -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
