Feature Request WAN Accelerator through Memory

[gingerdazza]

I was just wondering how feasible it would be for Veeam to utilise the copious amounts of cheap server memory we have for processing WAN Acceleration, rather than the current option of procuring an expensive SSD drive to optimise that process?

[PTide]

Hi,

I believe that it's not very good choice to use RAM for WAN. Firstly, because RAM is volatile - any power outage will make your WAN cache clear. Secondly, you don't need your performance to be that high. Actually I think that SSD is a little bit of overkill. On the other hand, if you really want to check how it's going to be with RAM you might want to set up a RAM drive and test it yourself.

Thank you.

[veremin]

By the way, WAN Acceleration algorithm has been seriously revised in version 8. So, usage of SSDs is not mandatory any longer. Even if you check v8 WAN Accelerator wizard, you won't see there SSD recommendations that used to be present in v7 wizard. Thanks.

[gingerdazza]

I believe that it's not very good choice to use RAM for WAN. Firstly, because RAM is volatile - any power outage will make your WAN cache clear.

Yes, it's volatile, but if you lose that data, so what? Just rehydrate it.
But thanks for your input.

[veremin]

The digests will have to be re-calculated; Global Cache will need to be populated anew. Both operations will consume time, resulting in increased backup window needed for backup copy job to finish.

[gingerdazza]

Only on the rare occasion you lose that volatile data.
Anyway, just a thought.

[Gostev]

As it was correctly noted before, even SSD is no longer a requirement for WAN accelerator cache starting v8.