The Active Block Mapping (ABM) is selected in job properties.
During backup you receive folowing error:
[2011-07-27 15:23:52.893]: Using filter type(s) change block.
[2011-07-27 15:24:17.097]: The active map filter failed on vix:r:noamtsa01vcx01.kmge.spe.net:902:[SAN_Storage0] KMGTA01APP03/KMGTA01APP03_1.vmdk.
"ABM does not support the vStorage API, which means that ABM cannot be used over Fiber connections or with ESXi hosts
Please use ESX host or Deselect Active Block Mapping (ABM) switch by editing vRanger backup job.