Some VM's processing rate is much slower

[shlomia]

Hi,

I have a problem which I really don't understand.
I have 1 EMC, storing all VM's datastores, they use iSCSI.
So, during VeeamZip, some backups will get to processing rate of 250+ MB/s.
While some VM's will get only 70 MB/s.
The VM's have the same hardware configuration, same network configuration.
as I said, they all on the same EMC.
I tried to migrate one of the slow VM's to one of the fast VM's datastore, it didn't help, the slow VM still have slow processing rate.
So it's not the datastore problem, I guess..

What can be the cause?

[shlomia]

The transfer mode is hotadd.

[foggy]

Hi shlomi, various processing speed for different VMs is expected, please review this thread for explanation.