Re: [Xen-users] Software Raid 5 domu performance drop

[Steven Wilcoxon <stevew@xxxxxxxxx>]

On 5/26/2013 8:39 AM, Micky wrote:
> Software raids by design have huge performance hits. I won't really
> use dmraid in production.
Raid 5 also has significantly more more I/O delays & performance hits 
since a single Write usually causes two Reads, then processing, finally 
two Writes. It gets even worse when sync'ing or if something waits for 
the the operation to complete before continuing.
Anyone using S/W raid (and sometimes even with h/w raid) is better off 
using Raid 1 or Raid 10 if you are concerned with performance.
S.W.

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users