[dm-devel] [PATCH] multipath-tools: add README.alua with instructions to enable ALUA

[Xose Vazquez Perez]

ALUA is supported in some storage devices, but usually it's disabled by default.

Cc: Christophe Varoqui <christophe.varoqui at opensvc.com>
Cc: device-mapper development <dm-devel at redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez at gmail.com>
---
 README.alua | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 README.alua

diff --git a/README.alua b/README.alua
new file mode 100644
index 0000000..134696a
--- /dev/null
+++ b/README.alua
@@ -0,0 +1,14 @@
+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".
-- 
2.14.3