Cc: Martin Wilck <mwilck@xxxxxxxx> Cc: Benjamin Marzinski <bmarzins@xxxxxxxxxx> Cc: Christophe Varoqui <christophe.varoqui@xxxxxxxxxxx> Cc: DM-DEVEL ML <dm-devel@xxxxxxxxxx> Signed-off-by: Xose Vazquez Perez <xose.vazquez@xxxxxxxxx> --- README.md | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/README.md b/README.md index dcf51f20..2322082c 100644 --- a/README.md +++ b/README.md @@ -146,3 +146,31 @@ The multipath-tools source code is covered by several different licences. Refer to the individual source files for details. Source files which do not specify a licence are shipped under LGPL-2.0 (see `LICENSES/LGPL-2.0`). + + +ALUA +==== +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" or "Active-Active mode(ALUA)-failover mode 4" + +- HPE 3PAR, Primera, and Alletra 9000: + "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)". + +- NetApp ONTAP: + To check ALUA state: "igroup show -v <igroup_name>", and to enable ALUA: + "igroup set <igroup_name> alua yes". + +- Huawei OceanStor: + "Host Access Mode" should be changed to "Asymmetric". -- 2.37.1 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/dm-devel
