Hi all,
We have a Windows Small Business Server 2011 set up in a VMWare ESXi 5.0.0-469512
The hypervisor has 4 machines running, two debians, one windows XP and our production Windows SBS2011
the other three machines have set the resource settings as low as possible and they run OK (it's just some dev machines)
The server has following configuration:
Dell PowerEdge R310
Intel Xeon X3470
HT Active
Perc H200 Adapter (vmhba2) with drives - a Raid 5 array (at this point I am not sure wether is the cache enabled or not)
The Windows SBS is very very very unresponsive, Copying a file from a storage server does roughly 200kB - 3000kB/s (bytes, not bits), which is damn low on a gbit network.
It has 4vCPU with 12GB RAM assigned (Because of Exchange, RAM is always at a peak level), CPU seems low
esxtop:
GID VMNAME VDEVNAME NVDISK CMDS/s READS/s WRITES/s MBREAD/s MBWRTN/s LAT/rd LAT/wr
1490460 sbs2011 - 1 101.47 61.61 39.86 11.12 0.99 9.24 40.19
I'm not sure though about the peak in the screenshot 
It's really weird. I've seen the threads in here about the latency problem, but no solution. I try to check the caching on the PERC H200 (im roughly 80% sure it's enabled).
Any ideas about this? I think the machine should be relatively responsive with this configuration, but it isn't
The other three machines have the rest of the resources (i.e. 4 cores divided between them and 4GB of RAM divided aswell)