From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Backlund Subject: Re: Configure speed of checkarray in mdadm? Date: Sun, 03 May 2009 22:50:32 +0300 Message-ID: <49FDF588.2040500@mandriva.org> References: <49FDB2E2.6000300@kth.se> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <49FDB2E2.6000300@kth.se> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids David Vuorio skrev: > Hi, > > I'm a happy user of mdadm 2.6.7.1 (2.6.7.1-1ubuntu8) and would like to > make a request. > > When my monthly RAID check is triggered (I have two SATA disks in a > RAID1 setup) it consumes a significant amount of resources, essentially > freezing the system for the most part. > > While I might cancel or reschedule these checks as needed, I would > prefer if the bandwidth usage could be configured manually, or even > adjusted dynamically. Alternatively, is there already a way to minimize > the impact beforehand? > > Thanks a lot for your help. > Change value of /sys/block/mdX/md/sync_speed_max ? -- Thomas