Upgrading one host from HP-ESXi-5.5.0 to HP-ESXi-5.5.0-Update2

[MariusRoma]

A vSphere infrastructure is made up by  3 HP Proliant hosts.

All the nodes were installed starting from the HP ESXi CDs.

Two hosts run HP-ESXi-5.5.0-Update2-5.xx.x, the last one is older and runs HP-ESXi-5-5-0-iso-5.71.3.

How can I allign the 3 hosts so that they run ESXi U2?

I cannot reboot for any reason the 2 nodes already running ESXi U2, while I can reboot if necessary the host running 5.5.0.

I presume I should use Update Manager, is it correct?

Is there a document or a KB article describing the steps to perform?

Regards

marius

[a_p_]

With Update Manager in place that's the preferred method to patch hosts. However, in order to male sure that all hosts run the same build, you'll need to find out which HP components need to be updated in addition to the VMware patches. As an alternative - in case the 2 ESXi hosts run the HP CD-ROM edition without further updates - you may consider to patch the host interactively using the HP CD-ROM/ISO that was used for the other two hosts. A reboot of the host you are going to update is required in any case.

André