From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Brown Subject: Re: Poor write performance with write-intent bitmap? Date: Tue, 21 Apr 2009 15:50:41 +1000 Message-ID: <18925.24241.19288.797776@notabene.brown> References: <49ED096E.1000002@anonymous.org.uk> <49ED16F7.3040906@anonymous.org.uk> <4081b80da35818efbc07723240f8ea36.squirrel@neil.brown.name> <49ED2BC3.7050109@anonymous.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: message from John Robinson on Tuesday April 21 Sender: linux-raid-owner@vger.kernel.org To: John Robinson Cc: Linux RAID List-Id: linux-raid.ids On Tuesday April 21, john.robinson@anonymous.org.uk wrote: > > Eeek! Trying to `mdadm --grow /dev/md1 --bitmap=none` from my large > chunk size caused a reboot! There's nothing in the log, and I didn't see > the console. I still have my 32M chunksize but I don't want to try that > again in a hurry :-) That's a worry... I cannot easily reproduce it. If it happens again and you get any more detail, I'm sure you'll let me know. Thanks, NeilBrown