Re: %b (percent busy) with iostat

From: Darren Dunham (ddunham_at_redwood.taos.com)
Date: 11/13/03 

Date: Thu, 13 Nov 2003 20:39:26 GMT

Kjetil Torgrim Homme <kjetilho@yksi.ifi.uio.no> wrote:
> [Darren Dunham]:
>>
>> 100% busy doesn't mean it's maxed out, but 29GB/s (heck even
>> 29MB/s) sounds pretty good on an A1000. Are you thinking it
>> should be going faster? I don't recall much better than that
>> sustained in many cases. They're not the speediest thing in the
>> world, and I believe the interface is only 40MB/s.

> -------Sequential Output-------- ---Sequential Input-- --Random--
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
> Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
> A1000 1024 4255 98.6 51398 62.2 19316 52.1 3025 85.3 44767 70.9 1963.4 27.5

Sehr Gut. Actually looking confirms it as Ultra Scsi. Then I just
always dealt with slow ones or poor databases when I used them. :-)

You could get them with 7200 or 10000 rpm drives. That might make a bit
of a difference from one to another. 

-- 
Darren Dunham                                           ddunham@taos.com
Unix System Administrator                    Taos - The SysAdmin Company
Got some Dr Pepper?                           San Francisco, CA bay area
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