WAN Acceleration

[jteef]

We've got around 200gb/day to transfer to an offsite location over a T3(45Mbps). I'm looking for a starting point to do more research to improve our performance.

an individual transfer stream caps out at about 6Mbps, which is about expected based on the classic TCP-latency dependency(80ms ping). What recent options are there to exceed this, so we're able to saturate the link with 1 file transfer, instead of a bunch of concurrent transfers?

data is generally db images and directories with 40-50GB data files(some uncompressed video, some just massive collections of telemetry figures)

There are a few WAN acceleration products that claim to cache oft-sent data, compress the data, and emulate TCP over UDP, but I'm suspicious of their claims, for now.

We're generally using ARCserve to transfer, though I suspect not optimally. Are there features in that utility or native to Win Server 2003/2008 I should look into?

 

[spidey07]

Enabling large TCP windows should get better performance. You really should be seeing speeds higher than that unless you're getting some packet loss.

 

[sactwnguy]

We use Riverbed wan accelerators and they help a lot on our slower links. They do better with some protocols than others. Your best bet is to make a list of what is going across your link and check with a sales engineer or even better get some demo boxes and test it.

 

[imagoon]

We use Riverbed wan accelerators and they help a lot on our slower links. They do better with some protocols than others. Your best bet is to make a list of what is going across your link and check with a sales engineer or even better get some demo boxes and test it.

A pair of riverbeds will make a night and day difference on anything compressible. A steelhead at one side and a smaller one remote should handle it fine.