A "ZFS Storage Appliance is not reachable" message is thrown by Exachk and the ZFS checks are skipped. WAD?

Sometimes it may happen that something like the following can be seen on the "Skipped Nodes" section:

Host NameReason
myexalogic01sn01-mgm1ZFS Storage Appliance is not reachable
myexalogic01sn01-mgm2ZFS Storage Appliance is not reachable

Also, a message like the following can be seen when executing Exachk:
Could not find infiniband gateway switch names from env or configuration file.
Please enter the first gateway infiniband switch name :
Could not find storage node names from env or configuration file.
Please enter the first storage server :


This is because the way Exachk works on this is based on the standard naming convention of "<rack-name>sn0x" format.

To solve this, make sure there is an o_storage.out file in the directory where Exachk is installed. If the file is missing, create a blank one.

The o_storage.out must contain the right storage nodes hostnames in the format they have in hosts file. This format should typically be something like "<rack-name>sn0x-mgmt" For example an o_storage.out should look quite simply as below:
myexalogic01sn01-mgmt
myexalogic01sn02-mgmt


This way it is ensured that the o_storage.out file has valid ZFS Storage Appliance hostnames.


If the switch checks are skipped, then a similar procedure should be performed with the o_switches.out file.
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Principal Technical Support Engineer in the Engineered (Systems) Enterprise Support Team - EEST.
Former member of the Coherence and Java Technologies Support Teams.

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