On Nov 20, 2009, at 11:22 PM, Erik Trimble wrote:
Something occurs to me: how full is your current 4 vdev pool? I'm
assuming it's not over 70% or so.
yes, by adding another 3 vdevs, any writes will be biased towards
the "empty" vdevs, but that's for less-than-full-stripe-width writes
(right, Richard?). That is, if I'm doing a write that would be full-
stripe size, and I've got enough space on all vdevs (even if certain
ones are much fuller than others), then it will write across all
vdevs.
"vdev" is a generic term. In this case, we're looking at dynamically
striping
data across "top-level vdevs." Block devices are "leaf vdevs."
-- richard
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
