7.0-Release and 3ware 9550SXU w/BBU - horrible write performance

Ivan Voras ivoras at freebsd.org
Thu Mar 6 09:54:03 UTC 2008


alan bryan wrote:
> --- alan bryan <alan.bryan at yahoo.com> wrote:

>> I've got a 4 disk RAID 10 array.

> Version 1.93d       ------Sequential Output------
> --Sequential Input- --Random-
> Concurrency   1     -Per Chr- --Block-- -Rewrite- -Per
> Chr- --Block-- --Seeks--
> Machine        Size K/sec %CP K/sec %CP K/sec %CP
> K/sec %CP K/sec %CP  /sec %CP
> server 16G   530  99 120160  23 28207   8   903  99
> 109688  16 518.7  18

> So, it's better but am I still getting what I should
> be seeing?  

It seems about right - twice the performance of a single drive is OK for
a 4-drive RAID10.


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