Robert,
PT You really need some level of redundancy if you're using HW raid.
PT Using plain stripes is downright dangerous. 0+1 vs 1+0 and all
PT that. Seems to me that the simplest way to go is to use zfs to mirror
PT HW raid5, preferably with the HW raid5 LUNs being completely
PT
Which is better -
zfs raidz on hardware mirrors, or zfs mirror on hardware raid-5?
The latter. With a mirror of RAID-5 arrays, you get:
(1) Self-healing data.
(2) Tolerance of whole-array failure.
(3) Tolerance of *at least* three disk failures.
(4) More IOPs than raidz of hardware mirrors
On Wed, 2006-06-28 at 14:55 -0700, Jeff Bonwick wrote:
Which is better -
zfs raidz on hardware mirrors, or zfs mirror on hardware raid-5?
The latter. With a mirror of RAID-5 arrays, you get:
(1) Self-healing data.
(2) Tolerance of whole-array failure.
(3) Tolerance of *at least*
