Change in vdsm[master]: multipath: Fix "COMPELNT"/"Compellent Vol" configuration

nsoffer at redhat.com nsoffer at redhat.com
Thu May 21 00:29:49 UTC 2015


Nir Soffer has uploaded a new change for review.

Change subject: multipath: Fix "COMPELNT"/"Compellent Vol" configuration
......................................................................

multipath: Fix "COMPELNT"/"Compellent Vol" configuration

The multipath configuration we ship is missing important settings embedded in
multiapth daemon. Overriding these defaults is needed to enable vdsm required
configuration, but also remove any option we don't mention in our mulitpath
device configuration, causing possible reliability or performance issues.

The new configuration was copied from upstream multiapth-tools settings,
updated on 2013-07-16, and override the "features" and "no_path_retry" settings
required by vdsm.

Requires testing with the relevant storage server.

Change-Id: Ic3bf5bab082c5063272bf8947a6e2039ce4cf90c
Signed-off-by: Nir Soffer <nsoffer at redhat.com>
---
M lib/vdsm/tool/configurators/multipath.py
1 file changed, 9 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.ovirt.org:29418/vdsm refs/changes/44/41244/1

diff --git a/lib/vdsm/tool/configurators/multipath.py b/lib/vdsm/tool/configurators/multipath.py
index 14ae46e..3d743af 100644
--- a/lib/vdsm/tool/configurators/multipath.py
+++ b/lib/vdsm/tool/configurators/multipath.py
@@ -64,8 +64,17 @@
         no_path_retry           fail
     }
     device {
+        # multipath.conf.default
         vendor                  "COMPELNT"
         product                 "Compellent Vol"
+        path_grouping_policy    "multibus"
+        path_checker            "tur"
+        hardware_handler        "0"
+        prio                    "const"
+        failback                "immediate"
+        rr_weight               "uniform"
+        # vdsm required configuration
+        features                "0"
         no_path_retry           fail
     }
     device {


-- 
To view, visit https://gerrit.ovirt.org/41244
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ic3bf5bab082c5063272bf8947a6e2039ce4cf90c
Gerrit-PatchSet: 1
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Nir Soffer <nsoffer at redhat.com>


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