Accelerator messages in the backup job details log

When a virtual machine is first backed up, Accelerator is not used for that backup. The following messages appear in the job details log:

7/25/2012 4:45:35 PM - Info bpbrm(pid=6192) There is no complete
 backup image match with track journal, a regular full backup will
 be performed

...

7/25/2012 4:53:22 PM - Info bpbkar32(pid=5624) accelerator sent 
5844728320 bytes out of 5844726784 bytes to server, optimization 0.0%

When subsequent backups of the virtual machine use Accelerator, the following messages appear in the job details log:

7/27/2012 4:40:01 AM - Info bpbrm(pid=412) accelerator enabled

...

7/27/2012 4:43:07 AM - Info bpbkar32(pid=4636) accelerator sent 
74764288 bytes out of 5953504256 bytes to server, optimization 98.7% 

This message is a key trace for Accelerator. In this example Accelerator was successful at reducing the backup data by 98.7%.