[nmglug] raid 10 vs 5

[Gary Sandine]

Hi,

On Wed, Sep 09, 2009 at 08:10:11PM -0600, Brendan wrote:
> Whatever you do, buy server grade 24/7 rated drives 

I think there was much good advice in your e-mail.  However, I don't
think the "enterprise"-class drives are worth the extra money.  The
big disk failure study done by Google (in the news a while ago using
consumer grade disks) indicates to me that they are not.  Maybe that
has changed, though.  I never looked into this -- is it possible
that hard drive manufacturers really have distinct manufacturing
processes for their enterprise or server class disks and for their
consumer class disks?  I'm not sure what the difference really is,
but the failure rates reported by Google and what I have seen in
practice (using consumer class disks in several 16 disk RAID arrays
for a few years) are pretty low.

> and do regular backups.

Yeah!  Don't think RAID means backups aren't as important.

Regards,
-- 
Gary Sandine <gars at laclinux.com>