PCA - AdminServer.log file is generating excessive entries, caused by multipathing on the compute nodes. This is hanging the OVM

(Doc ID 2395768.1)

Last updated on MAY 10, 2018

Applies to:

Integrated Software for ZFS ZS5-x Arrays - Version All Versions to All Versions [Release All Releases]
7000 Appliance OS (Fishworks)

Symptoms

Private Cloud Appliance using a ZFSSA Cluster for External Storage. This external  ZFSSA cluster is in an Active/Active configuration and is providing ISCSI LUNS over Infiniband to Five Compute nodes.

The Compute nodes are seeing constant pathing alerts. These messages are in turn monitored by the OVM and are Causing OVM to become non-responsive.

 

The compute nodes were also not able to consistently access the ISCSI LUNS.

 

When we check /var/log/messages on the compute nodes, we see repeating errors for the same LUNS similar to :

 

Cause

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