> No, we're not using the zfs_nocacheflush=1, but our > SAN array's are set > to cache all writebacks, so it shouldn't be needed. > I may test this, if > get the chance to reboot one of the servers, but > I'll bet the storage > rrays' are working correctly.
Bzzzt, wrong. Read up on a few threads about this variable. The ZFS flush command used equates to "flush to rust" for most any array. What this works out to, is your array is not using it's NV for what it's supposed to. You get a little data in the NV but it's tagged with this command that requires the NV to finish it's job and report back data is on disk, before proceeding. Hopefully at some point the array people and the ZFS people will have a meeting of the minds on this issue of having the array report to the OS "yes I have battery-back SAFE NV" and it will all just automagically work. Until then, we set the variable in /etc/system. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
