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Tue, 21 Nov 2017 10:52:15 -0800 (PST) From: Xose Vazquez Perez To: Date: Tue, 21 Nov 2017 19:52:13 +0100 Message-Id: <20171121185213.3737-1-xose.vazquez@gmail.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Tue, 21 Nov 2017 18:52:18 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Tue, 21 Nov 2017 18:52:18 +0000 (UTC) for IP:'209.85.128.196' DOMAIN:'mail-wr0-f196.google.com' HELO:'mail-wr0-f196.google.com' FROM:'xose.vazquez@gmail.com' RCPT:'' X-RedHat-Spam-Score: -0.111 (DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, FREEMAIL_FROM, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_PASS) 209.85.128.196 mail-wr0-f196.google.com 209.85.128.196 mail-wr0-f196.google.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.25 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-loop: dm-devel@redhat.com Cc: NetApp RDAC team , device-mapper development , Xose Vazquez Perez Subject: [dm-devel] [PATCH v2] multipath-tools: add README.alua with instructions to enable ALUA X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Tue, 21 Nov 2017 18:54:52 +0000 (UTC) X-Virus-Scanned: ClamAV using ClamSMTP ALUA is supported in some storage devices, but usually it's disabled by default. Cc: NetApp RDAC team Cc: Christophe Varoqui Cc: device-mapper development Signed-off-by: Xose Vazquez Perez --- v2 add rdac info --- README.alua | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 README.alua diff --git a/README.alua b/README.alua new file mode 100644 index 0000000..e39debd --- /dev/null +++ b/README.alua @@ -0,0 +1,17 @@ +This is a rough guide, consult your storage device manufacturer documentation. + +ALUA is supported in some devices, but usually it's disabled by default. +To enable ALUA, the following options should be changed: + +- EMC CLARiiON/VNX: + "Failover Mode" should be changed to "4". + +- HPE 3PAR: + "Host:" should be changed to "Generic-ALUA Persona 2 (UARepLun, SESLun, ALUA)". + +- Promise VTrak/Vess: + "LUN Affinity" and "ALUA" should be changed to "Enable", "Redundancy Type" + must be "Active-Active". + +- LSI/Engenio/NetApp RDAC class, as NetApp SANtricity E/EF Series and OEM arrays: + "Select operating system:" should be changed to "Linux DM-MP (Kernel 3.10 or later)".