Monday, April 15, 2013

Clariion and Failover mode with vSphere


This time I got a weird error when installing ESXi 5.1 on a boot via SAN disk.
The error was: Could not format a VMFS volume




Turns out that it was related with multipath and failover policy of the storage I’ve been using.
It’s an EMC Clariion by the way.

To make it works we needed to change the failover mode from 4 to 1.
What is weird about it is that failover mode 4 is not documented on the EMC website (it’s always possible that I did not look at the right place).

VMware has also a KB (2068) stating about this configuration.

After this change the installation proceeded without any issue.

Bye.

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I’m and IT specialist with over 15 years of experience, working from IT infraestructure to management products, troubleshooting and project management skills from medium to large environments. Nowadays I'm working for VMware as a Senior Consultant, helping customers to embrace the Cloud Era and make them succefully on this journay. Despite the fact I'm a VMware employee these postings reflect my own opnion and do not represents VMware's position, strategies or opinios.

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