From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xose Vazquez Perez Subject: Re: [PATCH 1/2] multipath-tools: change default failback from manual to immediate Date: Mon, 1 Aug 2016 03:58:08 +0200 Message-ID: <4cb41b6b-13c8-d145-c4f4-65cfc22c1c62@gmail.com> References: <1468271522-3052-1-git-send-email-xose.vazquez@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: Hannes Reinecke , Christophe Varoqui , Benjamin Marzinski Cc: device-mapper development List-Id: dm-devel.ids On 07/28/2016 04:03 PM, Hannes Reinecke wrote: > On 07/11/2016 11:12 PM, Xose Vazquez Perez wrote: >> Default value is: manual >> 1 .pgfailback = 15, >> 2 .pgfailback = 30, >> 24 .pgfailback = FAILBACK_UNDEF, >> 50 .pgfailback = -FAILBACK_IMMEDIATE, >> >> manual is not used by any device. >> >> Cc: Christophe Varoqui >> Cc: device-mapper development >> Signed-off-by: Xose Vazquez Perez >> --- >> libmultipath/defaults.h | 2 +- >> libmultipath/hwtable.c | 50 ---------------------------------------------- >> multipath/multipath.conf.5 | 2 +- >> 3 files changed, 2 insertions(+), 52 deletions(-) >> > 'immediate' fallback only makes sense if the device has a working > prioritizer _and_ supports a 'preferred path'. Then there are, at least, seven misconfigured devices. What devices have support for referred_path? Based on: guess??? PRIO_ALUA - YES PRIO_CONST - NO PRIO_EMC - YES PRIO_HDS - YES PRIO_HP_SW - NO PRIO_ONTAP - YES PRIO_RDAC - YES Is there a hint anywhere? > None of which can be assumed for an unknown device, so this patch > will break automatic configuration. As I said in my previous e-mail I don't believe in magic. But this is up to you(plural: Christophe, Hannes, Benjamin, ...)