Recent content by Thomas Gutzmann

Well, Proxmox is just Linux and the VM to be backed up a number of processes within the server, so I can very well imagine that a backup of the client (which in any case is a heavy operation) can bring the client down or at least make it hang. I'm not a friend of hot VM backups, by the way...

Did you see this thread in the Ubuntu Forums? large NFS copy locks up/hang client with large files (again) (lucid) There seem to be some good ideas, especially #23 and #72, possibly #55. There is also a reference to "Troubleshooting NFS". As you don't see these problems with local storage...

Sorry, I didn't read your post carefully enough. So you tried bwlimit already... I'm writing an answer to your post so this won't drift in the wrong direction.

I'm still evaluating Proxmox, especially in the areas of reliability, scalability and performance. In a parallel installation I'm running some tests against a VMware ESXi installation, if required. The I/O problems have occurred in these isolated tests - I'm not yet at a point where I run...

Thank you! As soon as we build the target architecture an purchase subscriptions, I will raise an incident to the support team. Even though it may not be a problem - after some decades in system management I still dislike error messages ;-)

It's Proxmox 4.3-1. I don't see any of these problems on a native server, nor in an ESXi VM. I tried now with R/W> limits and R/W max burst of 150MB, but there are still unaccountable peaks in one of the tests. They don't show in the graph, but in atop I saw I/O busy rates of more than 400%...

Hi Fireon, Thanks for your reply. Do you also use the VirtIO NIC emulation? Cheers, Thomas

I'm well aware that this is a fairly old thread, but as I ran into the same problems while evaluating Proxmox, I think this is the best place to publish my solution ... if it's not common knowledge and best practice yet, but anyway: Using the Phoronix / OpenBenchmarking test-suite pts/fio, I...

I'm evaluating Proxmox with CentOS 7 VMs, and I found some strange messages in /var/log/messages: NetworkManager ... platform-linux: Too many netlink events. Need to resynchronize platform cache I googled for this error message, but there is nothing useful to be found. I tested in parallel...