We have a Windows 2008 server primarily used for samba. It is not a domain controller.
It works 95% of the time, however, when reading/copying files from the server we experience network jams/lockups.
This usually happens when:
- using Acronis backup to copy a single large image file
- running batch files which copy large numbers of single files
- streaming videos (50-80MB) in size, causing lockups on the client.
The jams last between 10 and 90 seconds, during which little/no other network activity can occur.
The Windows 2008 R2 running inside a Proxmox virtualised environment V3.0-20/0428106c
We have followed the advice here, installing VirtIO network drivers and baloon driver.
When the jams are in process, resource meters do NOT show any excessive CPU or network usage.
The server was setup similarly in a non-virtualised environment a few months ago worked fine.
Any ideas how to solve, or provide further diagnostic information.