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Veeam Backup of Exchange DAG

When Backing up Exchange DAG with Veeam, it causes Failover which is not desirable.
Veeam talks about working around this issue in this link:
http://www.veeam.com/kb1744

However in different link Veeam talks about :VMware Tools Quiescence
http://helpcenter.veeam.com/backup/80/vsphere/tools_quiescence.html

I do not understand which approach should I go with in order to prevent Exchange DAG failover.

*Veeam also has an option(checkbox) for VSS integration. So it makes it much more confusing which approach to go for.

Any help will be very much appreciated.

Thank you

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Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

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jskfan

ASKER

In our environment we are update when it comes to hardware versions.
What I need to understanding is the difference between :
**VSS integration
**VMware tools quiescence

**and the work around to Fix DAG nodes failover by changing timeout values to max with no server reboot (command line):

cluster /prop SameSubnetDelay=2000:DWORD

cluster /prop CrossSubnetDelay=4000:DWORD

cluster /prop CrossSubnetThreshold=10:DWORD

cluster /prop SameSubnetThreshold=10:DWORD

How are they all related? maybe they treat different things than what I am thinking of

ASKER CERTIFIED SOLUTION

Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

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jskfan

ASKER

In our environment, what I know is Veeam verified the hardware and the compatibility before they gave green light to install VBR. However our Backup Admin, when he ran the back of Exchange DAG, it failed over, there was no Outlook user Impact, since it is just a failover.

What I was trying to understand is, if the answer is YES or NO to your question:
You are *NOT* using 7,200rpm SATA disks are you ?
Which of the approaches will avoid the DAG Failover? is it going to be:

**VSS integration
OR
**VMware tools quiescence
OR
the work around to Fix DAG nodes failover by changing timeout values to max with no server reboot (command line):

cluster /prop SameSubnetDelay=2000:DWORD

cluster /prop CrossSubnetDelay=4000:DWORD

cluster /prop CrossSubnetThreshold=10:DWORD

cluster /prop SameSubnetThreshold=10:DWORD

jskfan

ASKER

Thanks