On 4/27/2010 9:56 PM, Mark Allums wrote:
On 4/26/2010 1:37 PM, Mike Bird wrote:On Mon April 26 2010 10:51:38 Mark Allums wrote:RAID 6 (and 5) perform well when less than approximately 1/3 full. After that, even reads suffer.Mark, I've been using various kinds of RAID for many many years and was not aware of that. Do you have a link to an explanation? Thanks, --Mike BirdYMMV.
I should explain better. Three-drive motherboard-fake-RAID-5's perform abysmally when they start to fill up.
I do not have a link handy. I could try to find some, if you like.In my experience, real-world performance is always less than theoretical or reported performance. That is, I've never had a RAID 5 work as well as advertised. If you have had better experiences than me, more power to you.
MAA