Re: [zfs-discuss] ZFS and SAN Arrays

2008-12-17 Thread zfs user
Bob Friesenhahn wrote: On Tue, 16 Dec 2008, Reed Gregory wrote: 8 Hardware RAID-5 Groups ( 5 drives each) and 2 SAN hot spares. zraid of these 8 Raid Groups. ~ 14TB usable. I did read in a FAQ that doing double redundancy is not recommended since parity would have to be calculated twice.

Re: [zfs-discuss] ZFS and SAN Arrays

2008-12-16 Thread Bob Friesenhahn
On Tue, 16 Dec 2008, Reed Gregory wrote: 8 Hardware RAID-5 Groups ( 5 drives each) and 2 SAN hot spares. zraid of these 8 Raid Groups. ~ 14TB usable. I did read in a FAQ that doing double redundancy is not recommended since parity would have to be calculated twice. I was wondering what