RAID-5 and database servers

Dan Pritts danno at
Thu Mar 11 10:23:44 CST 2010

On Tue, Mar 09, 2010 at 04:54:44PM -0600, John G. Heim wrote:
> Has anyone configured a database server with RAID-5? Is it really a bad idea 

One other thought - don't use RAID5 for anything you really care about.  
Use RAID6.  

For a great understanding of why, read the articles on
regarding "ZFS Raid Recommendations."  FOr the purposes of reliability calculations,
RAID-Z is equivalent to RAID5 and RAID-Z2 is equivalent to RAID6.

Dan Pritts, Sr. Systems Engineer
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