I've just moved over to ESXi on a Haswell platform and unRAID has been working great.

 

My only issue is that i cannot get any of the ubuntu-server type VMs i have created to max out anywhere near my download speed. Only a Windows 8.1 VM comes close to 20mb/s. On my desktop machine i can do up to 65mb/s using the NZBGet.

 

Now, i installed various applications and NZBGet on Windows and Linux goes to about 4mb/s. (i've tried the various libpar2 patches)

 

Has anyone experienced such issues or can point me to the right direction to get the best performance out of my VMs?

 

I am saving files to the cache unRAID drive and i can copy to/from it at 80mb/s just fine from the VMs.

Are all the drives in the various VM's passed through to the OS?

 

The VMs are all on the datastore (ssd). They all use the cache (mechanical) on unRAID for downloads storage. SMB connections seem fine.

 

In unRAID, all the drives are passed through (nothing going through datastore except the boot vmdk).

Do you have the vmware tools installed and using the paravirtualized drivers on the Ubuntu vms?

I did have VMWare tools installed, but unsure on the drivers, i will search up on this!

 

From reading up, it doesn't seem like it would benefit me too much.

 

However, getting open-vm-tools on unRAID seems to have made a difference! Is there a guide out there on fully optimising a VM?