From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ren Mingxin Subject: Re: [PATCHv2 0/7] Limit overall SCSI EH runtime Date: Wed, 07 Aug 2013 14:43:57 +0800 Message-ID: <5201ECAD.7000703@cn.fujitsu.com> References: <1372661455-122384-1-git-send-email-hare@suse.de> <1373488528.7420.55.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from cn.fujitsu.com ([222.73.24.84]:23064 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1754219Ab3HGGja (ORCPT ); Wed, 7 Aug 2013 02:39:30 -0400 In-Reply-To: <1373488528.7420.55.camel@localhost.localdomain> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: James Bottomley Cc: emilne@redhat.com, Hannes Reinecke , linux-scsi@vger.kernel.org, Bart van Assche , Joern Engel Hi, James: On 07/11/2013 04:35 AM, Ewan Milne wrote: > Looks good. We have been testing this extensively. > > Acked-by: Ewan D. Milne Do you think this patchset can be applied? If so, When? Perhaps you are waiting for someone's feedback? We've also tested and got the duration could be shortened from 6m26s to 44s when 'eh_deadline' was set as 1s(the minimum value of timeout) and 16M data were written(I/O processing time can be ignored - 0.7s). As Ewan said, this is efficient to fast failover policy for redundant environments. Thanks, Ren