[EMAIL PROTECTED] said:
The only obvious thing would be if the exported ZFS filesystems where
initially mounted at a point in time when zil_disable was non-null.
No changes have been made to zil_disable. It's 0 now, and we've never
changed the setting. Export/import doesn't appear to change
[EMAIL PROTECTED] said:
The reality is that
ZFS turns on the write cache when it owns the
whole disk.
_Independantly_ of that,
ZFS flushes the write cache when ZFS needs to insure
that data reaches stable storage.
The point is that the flushes occur whether or not
I had followed with interest the turn off NV cache flushing thread, in
regard to doing ZFS-backed NFS on our low-end Hitachi array:
http://www.mail-archive.com/zfs-discuss@opensolaris.org/msg05000.html
In short, if you have non-volatile cache, you can configure the array
to ignore the ZFS
