Which mode is quicker in a virtual appliance? ESXi 4.1

[ian0x0r]

Running replication jobs with Veeam v5 on a 2008 R2 VM on ESXi 4.1 which mode is quickest? Virtual appliance mode or direct SAN access mode. Bit of testing I have done for initial replication, direct SAN access mode seems to be quite a bit quicker. Should this be the case?

Does the Veeam VM act as proxy device during replication when it is hosted on ESXi so the performance is slower?

Any thoughts or tips for improved performance in virtual appliance mode would be much appreciated. I have followed this for http://www.veeam.com/forums/viewtopic.php?f=2&t=4093 for direct SAN speed improvements, which has worked nicely.

Thanks

Ian

[Vitaliy S.]

Both modes should show pretty similar results, as they both access data either through ESX(i) I/O stack or direct storage connection in case of a SAN mode being used. Everything depends on the hardware you have to run and store your backups.

In any vStorage API mode Veeam backup server acts as a proxy for data transmission. To have the best performance possible in Virtual Appliance mode you should grant a Veeam backup server VM with 4 vCPU.

By the way have you had a chance of looking through our sticky F.A.Q. topic regarding SAN and Virtual Appliance modes:
http://www.veeam.com/forums/viewtopic.p ... 538#p20534

[ian0x0r]

Hi

Thanks for the reply. Yes I have looked at that post, just confused why virtual appliance mode seems to be slower than direct san access. Direct SAN access is set up in a VM. I will continue my testing

Thanks

Ian