From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Davidsen Subject: Re: Interesting RAID checking observations - I'm getting it too Date: Mon, 04 Sep 2006 12:42:53 -0400 Message-ID: <44FC578D.5020704@tmr.com> References: <20060830192410.332db788.nanog@fa1c52f96c54f7450e1ffb215f29991e.nosense.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20060830192410.332db788.nanog@fa1c52f96c54f7450e1ffb215f29991e.nosense.org> Sender: linux-raid-owner@vger.kernel.org To: Mark Smith Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids Mark Smith wrote: >Just a note, I've noticed this problem too. I run a RAID1 check once >every 24 hours, and while developing the script to do it, noticed that >the machine became virtually unusable - mouse was jumpy, typing lagged. > >I run this check every morning at 4.00am so I'm usually asleep and >don't notice it, so it hasn't been a big bother to me. > > Interesting, but do you run other stuff at that time? Several distributions run various things in the middle of the night which really bog the machine. >The data may be a bit corse, however here is what sysstat/sar says my >machine does during the check. Let me know if you want any more or other >sar data. > [ data dropped, not relevant to my suggestion ] -- bill davidsen CTO TMR Associates, Inc Doing interesting things with small computers since 1979