1) Just wondering, is Change Block Tracking utilised for snapshots (ESX 4.x)? or is the mechanism the same as ESX 3.x
2) I know its used for SVM after reading a punching clouds article (http://www.punchingclouds.com/?p=896). However in ESX 3.x the VMDK needed to be RO before you could copy data out of it, so I gather that CBT enables you to read a RW VMDK?
3) Because of the quiecing cycle to enable CBT does this need to be done before a VM can be SVM'd?