Brian Hechinger wrote:
On Thu, Jul 23, 2009 at 10:28:38AM -0400, Kyle McDonald wrote:
In my case the slog slice wouldn't be the slog for the root pool, it
would be the slog for a second data pool.
I didn't think you could add a slog to the root pool anyway. Or has that
changed in recent builds? I'm a little behind on my SXCE versions, been
too busy to keep up. :)
I don't know either. It's not really what I was looking to do so I never
even thought of it. :)
When you have just the root pool on a disk, ZFS won't enable the write
cache by default.
I don't think this is limited to root pools. None of my pools (root or
non-root) seem to have the write cache enabled. Now that I think about
it, all my disks are "hidden" behind an LSI1078 controller so I'm not
sure what sort of impact that would have on the situation.
When you give the full disk (deivce name 'cWtXdY' - with no 'sZ' ) then
ZFS will usually instruct the drive to enable write caching.
You're right though if youre drives are really something like single
drive RAID 0 LUNs, then who knows what happens.
-Kyle
-brian
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
