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Vmware Upgrade queries...

patron asked
Last Modified: 2015-09-30
Need to confirm few things on upgrade to be done from 4.1 to 5.5

Is it require to enabled EVC if all my Esxi host upgraded from 4.1 to 5.5 in new vc and in new cluster.and all are with same model,type and CPU generation.  any  method to check and confirm if evc to be enabled on cluster having such host ?

Upgraded my host from 4.1 to 5.5   Now to upgrade dvSwitch from 4.1.0 to 5.5.0 -any downtime required ?

Can we do roll-back if there is any issue during dvswicth upgrade ?

any limitation/restriction with VMFS upgrade from vmfs 3 [4.1]to vmfs5 [5.5] ?

Can we do vmfs upgrade with no downtime or if any restriction due to some ATS settings disabled due to san dependency
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