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From: Xose Vazquez Perez <xose.vazquez@gmail.com>
To: Sebastian Herbszt <herbszt@gmx.de>
Cc: device-mapper development <dm-devel@redhat.com>
Subject: Re: [PATCH 16/18] multipath-tools: Use ALUA for HP 3PAR
Date: Sun, 31 Jul 2016 22:43:40 +0200	[thread overview]
Message-ID: <cc29c462-f1d4-f74a-5b16-1236b48b85ea@gmail.com> (raw)
In-Reply-To: <trinity-56e0175a-2d50-4b23-bcd6-901dba2baf2f-1469991975804@3capp-gmx-bs42>

On 07/31/2016 09:06 PM, Sebastian Herbszt wrote:

> Xose Vazquez Perez wrote:
>>
>> No. It's related to hardware_handler, "alua" in this case.
> 
> So how does the output of 'multipath -ll' looks like for persona 1 and 2
> with and without 'retain_attached_hw_handler'?

retain_attached_hw_handler is innocuous.
The paths grouping policy is controlled by the "path_grouping_policy" keyword,
multibus vs. group_by_prio. See man page.


Persona 1 and 2 basically is the same, but:

Persona 1:	path_grouping_policy = multibus
		failback = manual
		prio = const

Persona 2:	path_grouping_policy = group_by_prio
		failback = immediate
		prio = alua				(this is irrelevant, alua-prio is autodetected)
		hardware_handler= "1 alua"		(this is irrelevant, all hardware handlers are autodetected)

With 3PAR-OS 3.1.3, or later, you should use "Persona 2"

  reply	other threads:[~2016-07-31 20:43 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-30  0:28 [PATCH 01/18] multipath-tools: add KOVE/XPD to hwtable Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 02/18] multipath-tools: Remove ONTAP IBM Nseries from hwtable Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 03/18] multipath-tools: reorganize NetApp devices Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 04/18] multipath-tools: add NetApp/SolidFir to hwtable Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 05/18] multipath-tools: add Nimble " Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 06/18] multipath-tools: add IBM/FlashSystem " Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 07/18] multipath-tools: add EMC/Celerra " Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 08/18] multipath-tools: add FUJITSU/ETERNUS 2000/4000/8000 " Xose Vazquez Perez
2016-07-31 19:39   ` Sebastian Herbszt
2016-07-30  0:28 ` [PATCH 09/18] multipath-tools: add VIOLIN/ "SAN ARRAY" and "SAN ARRAY ALUA" " Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 10/18] multipath-tools: add Nexsan E-Series and SATABeast/SATABoy " Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 11/18] multipath-tools: add Xiotech ISE 1400/2400/3400/3401 " Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 12/18] multipath-tools: put a comment in the correct place Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 13/18] multipath-tools: delete nearly all attribute of last member(NULL) in hwtable Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 14/18] multipath-tools: change path grouping policy for EUROLOGC/FC2502 Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 15/18] multipath-tools: add official name to Huawei devices Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 16/18] multipath-tools: Use ALUA for HP 3PAR Xose Vazquez Perez
2016-07-30 22:14   ` Sebastian Herbszt
2016-07-30 23:39     ` Xose Vazquez Perez
2016-07-31 19:06       ` Sebastian Herbszt
2016-07-31 20:43         ` Xose Vazquez Perez [this message]
2016-08-03  0:17           ` Sebastian Herbszt
2016-10-22 17:00             ` Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 17/18] multipath-tools: add HPE StoreVirtual P4000 family to hwtable Xose Vazquez Perez
2016-07-30  0:28 ` [PATCH 18/18] multipath-tools: add Oracle FS " Xose Vazquez Perez
2016-07-31  9:06 ` [PATCH 01/18] multipath-tools: add KOVE/XPD " Christophe Varoqui

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