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cparker4486
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Is WAN Accelerator limited to processing one VM at a time?

Post by cparker4486 » Jan 17, 2014 6:54 pm

Hi,

I have two Backup Copy jobs running at the same time, with the same WAN accelerator target, and between the two only one VM is processed at a time. Is this a hard limitation of the WAN accelerator or is this a limitation of my device's hardware? (Admittedly this hardware is quite old so I wouldn't be surprised if that was the cause of this behavior.)
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Gostev
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Re: Is WAN Accelerator limited to processing one VM at a tim

Post by Gostev » Jan 17, 2014 7:00 pm

Hi Chris, only source WAN accelerator is limited to one VM at a time. Target WAN accelerator can receive and process multiple VMs at a time. Thanks!

cparker4486
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Re: Is WAN Accelerator limited to processing one VM at a tim

Post by cparker4486 » Jan 21, 2014 6:35 pm

Hi Gostev,

Sorry for the late reply. In that case I'll have to install another source WAN Accelerator but I'm concerned the performance of the target is not fast enough to benefit.

If during a copy job the primary bottleneck is Target WAN does that mean B&R believes it to be the WAN's connection speed or is it referring to the performance of the WAN Accelerator? If the latter I will definitely need to upgrade that device before creating another source WAN Accelerator.
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Re: Is WAN Accelerator limited to processing one VM at a tim

Post by foggy » Jan 21, 2014 8:52 pm

Target WAN being the bottleneck means that target WAN accelerator's cache speed is the weakest point in the backup copy job processing, which is quite typical since WAN accelerators are effectively trading disk I/O for WAN bandwidth savings,

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