Dangerous, what are you trying to backup in the VM? usually I have backup exec running on the host and then the guest vm's have the relavent backup exec agent, such as exchange, sql etc.. and the host does the nightly backup
Whats the spec of the box your running this on and what type/speed of tape drive do you have? as far as I know, you only get the right network speed with virtual server/vmware server is when you have installed their additions to the VM
never ever ever use double take, I really dont like it, we used it on our servers and it was, at best, 6Gb out of sync, and never worked correctly, we now use 2 NAS boxes from NetApp and their replication software.
Bizzarely we use it for replicating file, exchange and SQL and it works perfectly, espically for failover. Also used Neverfail (asking for trouble in a product name if I ever saw one) and again that worked really well for Exchange failover.
The links we have between the systems are 1Gbps WAN.
never ever ever use double take, I really dont like it, we used it on our servers and it was, at best, 6Gb out of sync, and never worked correctly, we now use 2 NAS boxes from NetApp and their replication software.
I'd second that, we had a third party sugest doubletake for exchange we chased them from the building and went with the two FAS solution instead.
Back on topic (slightly) ignore the speed your VM says the nic is running at in windows what ever it reports it will be running at the maximum physical speed of the hardware. The VM tools do install a newer driver which may improve speed but not significantly and will also result in all nics being reported at 1gb regarless of wether they are plugged into 10, 100 or 1gb conections.
As for your problem, I'd be tempted to either backup or image the servers to an external hard disk and then restore from that we used images for DR testing in my old place of employment.
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