i´m fighting against auxcopy performance things. We have 2 MAs located in different datacenters connected over WAN. We have an 1Gb WAN connection between ( exclusive ). Both MAs are windows server 2012. Anti Virus is excluded and the netwroc speed is tested and we get the hole bandwith.
One Example what i can see:
VSA backup on primary DC runs with 22 Data Readers ( 51 Total VMS ). After the Backup is done the dashcopy starts transfairing to dc2. At beginning the performance is creat we see that the bandwith comes to the limit but after few hours when one some streams are missed the performance breaks down. I have 2 big streams for example 1,34TB and 500GB left after the running time. It looks like this streams only use 2 TCp connection between both MAs and not the hole bandwith is used.
Are there any performance tweaks to get better performance on dashcopy when only 1 or 2 streams left ?