We backup VMware targeting the VCenter and often times there are machines offline and backup complete but with many errors. Is there a way for me to excluse offline VMware on the subclient level? Of any other way?
You can filter by power state - http://documentation.commvault.com/commvault/v11/article?p=32186.htm
Select the power on status of virtual machines to be filtered. You can select one of the following options: