From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Davidsen Subject: Re: raid5 grow reshaping speed is unchangeable Date: Thu, 27 Dec 2007 19:53:58 -0500 Message-ID: <47744926.6010808@tmr.com> References: <380-220071242752242883@mochamail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <380-220071242752242883@mochamail.com> Sender: linux-raid-owner@vger.kernel.org To: Cody Yellan Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids Cody Yellan wrote: > I had a 4x500GB SATA2 array, md0. I added one 500GB drive and > reshaping began at ~2500K/sec. Changing > /proc/sys/dev/raid/speed_limit_m{in,ax} or > /sys/block/md0/md/sync_speed_m{in,ax} had no effect. I shut down all > unnecessary services and the array is offline (not mounted). I have > read that the throttling code is "fragile" (esp. with regard to > raid5) but does this make sense? I will wait (in)patiently for it to > finish, but I do wonder why the configuration parameters have no > effect. This is a dual quad 2GHz Xeon machine with 8GB of memory > running RHEL5. Is this the maximum speed? > Something else going on, I do better than that adding drives on USB! I don't have a clue what the issue is, and I don't see anything in your information which looks unusual. -- Bill Davidsen "Woe unto the statesman who makes war without a reason that will still be valid when the war is over..." Otto von Bismark