We are having a lot of performance issues with our VMs and a lot of staff are complaining that applications are slow and freeze (for example restarting a window server use to take 5-10 sec, and now it take over 5 minute, new windows seems to take half a sec between click and action etc).
I’m having difficulties trying to troubleshoot these issues so i’m trying to start at basic as i have inherited this setup a while back and i have been trying to adapt to changes as needed and not everything that has been done in the past make sense to me.
For our setup we run 2 datacenter that are almost identical, both have a vcenter appliance and replication appliance.
Our infrastructure is composed of a Dell VRTX chassis with 4 blades and 40Tb of shared internal storage on raid 60, vmfs. we run vmware 6.7 u3
Each blade has 4 physical network, 2x1gb and 2x10gb
We have a standard switch on each with the 2x1gb setup, connected to the vmkernel vmk0, default stack
We have also a distributed switch using the 2x10gb for each where everything else is connected.
We went through a major re-ip work recently and basically 172.18.4.0/24 is our management network on main datacenter. 10.4.0.0/16 is remnant of the old network, local only.
So my questions would be :
Am i correct to think that all replication traffic would go through the 1gb management interface ?
Do we have enough vmkernel and is the vmkernel setup look fine
Where do i look for performance issues after that.
i hope that make sense and appreciate any help.