On 10/26/06, Roger Deschner <[EMAIL PROTECTED]> wrote:
You probably want to avoid RAID5 for disk storage pools, whether sequential or random. That can really slow client backups, because RAID5 is quite slow for writing. RAID5 is really only good for read-mostly applications, so at least you'll migrate quickly. You probably want RAID10 instead, a striped set of mirrored pairs. (Make sure your RAID10 implementation is NOT a mirrored pair of striped sets, which is quite unsafe!) RAID10 is a less efficient use of raw disk space, but both faster and safer than RAID5.
Yes, in a world of infinite funding, we would all use RAID1 or RAID10 :-) Sadly I do not work in such an environment, so the choice was RAID1 and not enough disk pool to possibly hold a night's backups, or RAID5 with (barely) enough space... I choose the later option, and this thread is about me trying to keep the (barely) bit intact. -- Daniel Joseph Barnhart Clark http://www.pobox.com/users/dclark
