
- #Windows server 2012 remote desktop freezes upgrade#
- #Windows server 2012 remote desktop freezes windows#
#Windows server 2012 remote desktop freezes windows#
I've 3 VM identical with Windows 2012 R2 and Terminal Server. I have a similar issue on new installation of Proxmox 5.3.
#Windows server 2012 remote desktop freezes upgrade#
The biggest question is, is this a Proxmox/KVM issue? NFS issue? Windows issue? We need to know because last time we thought it was hardware/proxmox version and after a large upgrade of all hardware and software the result is the same. Managed 48p gigabit switch with LACP memberships for the Proxmox nodesĪny suggestions what we can do to prevent the Terminal Servers from freezing? Any idea why the Proxmox console does not work on the moment the VM freezes? And what can prevent a "reset" from working? We have a Proxmox node that has 8x1TB disks + 2x500 GB SSD with ZFS and that works fine, Terminal Servers don't crash on this stand-alone server.ĥx Proxmox 4.2 nodes with 2 ports in LACP bondĢx SSD ZFS NFS nodes with 4 ports in ALB bond It only happends on NFS shared storage so far. Our previous storage was 12x2TB disks + 2x SSD for cache, they had the same problems and my thoughts were that these units might be overloaded on peak moments by other VM's.Īlso we noticed that this problem does not occur when we use local disks. We use 2 live SSD servers (24x1TB SSD each storage unit) and VM's have problems on both of them. Our indications go to storage, however we have really fast storage. Disabling SWAP seems to have a little impact, it crashes less. The only thing they have in common is they are Terminal Servers where user log in to. They are for different customers and have different workload. These 15 terminal servers all have different software, different installation times, some have latest updates and some not. We do notice that Virtio disks on a Terminal Server seem to hang faster (once a month per VM, where IDE is about once in 3 months). We also tried E1000 and IDE instead of Virtio but this doesn't solve the problem. There was no load, no special user action, no errors. When we look back in the logs, nothing was wrong. The only way to fix it is to stop the VM and then start it. When we sent this command, nothing happends. When we open the console, the welcome screen of Windows shows and you have to send CTRL+ALT+DELETE. The VM becomes unreachable, however you can still ping the VM and Nagios checks work (like disk, cpu, uptime etc.).


We also run about 120 other VM's who don't have these issues, it only happends on Terminal Servers where users log in. We connect to the ZFS storage with ZFS over a bond of 4x1Gbit (intel quad port). Also we changed all Proxmox nodes with new hardware and installed Proxmox 4.2 (old setup was 3.4). The IO is never a issue, the SSD's are really fast and the disk IO is minimal. We changed all hardware 3 months ago, moving from Hybrid ZFS storage to SSD ZFS storage. But we are running about 15 Terminal Servers now and it's a routine now to reboot them every week. This happends only once in 2 or 3 month per VM. They are based on Server 2012 R2 with multiple user sessions and normal programs like Office.

We host multiple Terminal Servers within our Proxmox cluster. We have a issue with out VM's for over 2 years now.
