Job Running Very Slow When Backup MSExchange

[GEVEWE]

Hello Guys!

I have 3 ISXI Server with 10 VM's Each.
I have 3 Backup Job :
- Job 1 For ISXI 1
- Job 2 For ISXI 2
- Job 3 For ISXI 3 (There is One Exchange Server : 1 TB more/less)

My Backup job directly to storage using FC. Not throught the Network environment, so usually the speed is very fast. AVG 200MB/S.
The problem is when Job Backup the My Exchange Server, the speed decrease very significant. 11MB/S

This is very Poor! Why that can happen? Is the problem come from VEEAM?
Or is there special configuration for Exchange Backup?

[veremin]

Are those jobs similar in terms of specified settings, such as backup mode, target repository, etc.? Can you also provide the major bottleneck, along with full bottleneck statistics?

[GEVEWE]

Yes.. All of the job have the same settings. Backup Mode, repository, proxy have same phisycall environment.
All of the job have same bottleneck - Sources


Or This is the Image URL

1. https://drive.google.com/file/d/0Bzi3Gx ... sp=sharing

2. https://drive.google.com/file/d/0Bzi3Gx ... sp=sharing

Where Pict 1 is job where the MsExchange Belong, and Pict 2 is the other ISXI Server without Exchange!

[foggy]

Select this particular VM to the left and check what transport mode is being utilized to retrieve this VM data (transport mode [tag] is reported right after the proxy server name selected for processing) and whether CBT is used for its hard disks (look for [CBT] tag).