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I had a power outage for about an hour this afternoon, which took down three nodes of my four-node cluster (creatively enough, the nodes are named pve1, pve2, and pve3; pve4 was on a different UPS and wasn't affected). After bringing them back up, pve1 and pve2 are in a semi-offline status: I...

tl;dr: I'm experiencing a very flaky network connection on a Dell PowerEdge R630 with the Intel X710/i350 network daughter card. The node itself is dropping offline and coming back online at (apparent) random, and VMs and containers on the node are also very flaky. Background: I've had a...

tl;dr: I've been getting emails from by backup server for about the last 10 days that it was unable to renew my Let's Encrypt certificate. My PBS has been set up to get a cert from Let's Encrypt using DNS validation via acme-dns since September 2021. It's successfully renewed every 60 days...

I'm having a recurring problem that NFS mounts on my TrueNAS server go "offline" in my PVE cluster, and/or remain online but show very poor performance. Trying to track down why it's happening, and what I can do to to address it. My TrueNAS server is running TrueNAS CORE 12.0-U5.1. It has 2x...

I tried making two clones of a container template at the same time, and now I'm left with one that's locked: The problem is that it doesn't really seem to be there--I can't qm unlock or qm destroy it; both commands tell me that nodes/pve3/qemu-server/166.conf doesn't exist. How do I get rid of it?

It looks like the official repo only has the backup client for x64--is there a reasonably-tested method of running it on a Raspberry Pi under either Raspbian/Raspberry Pi OS or Ubuntu?

Since rebooting one node of my three-node cluster this morning, I'm seeing some strange behavior, in that one node (often, but not always, the one I rebooted) appears offline, like this: The node is up and running, I can ssh to it, and in this case, I'm even logged into that node's web GUI...

I have a three-node PVE 6.3 cluster running on three nearly-identical (identical except for RAM--two nodes have 48 GB; the third has 96 GB) blades of a Dell PowerEdge C6100, each with 2x Xeon X5650 CPUs, and each with a Chelsio T420-CR 2x 10Gbit NIC. Each pretty consistently fails to bring up...

I've been dealing with this problem since I installed PVE, but since I didn't reboot the servers very often I didn't bother dealing with it. Now I'm needing to reboot the servers more in the course of troubleshooting another issue, and this is becoming more of a hassle than it had been. I have...

tl;dr: I'm seeing poor network performance on a CentOS 6.7 guest over 10GbE. Bare metal on the same hardware would see 6+ Gb/sec using iperf; now the average is closer to 1 Gb/sec. Before installing Proxmox, I ran my home network on a Centos 6.7-based firewall/server/router (SME 9.0...

I could write a bit of background, but I guess it isn't really relevant. I installed PVE 4.0 on a single-socket server, and bought a community license key for it. I then found that that hardware didn't have the grunt that I needed, so I moved the drives to a two-socket box. Everything's...

Running Proxmox VE 4.0-57 on ZFS, and I've created local ZFS storage for my VMs, so they're using zvols for their virtual disks. How should cache be set for those? The default is no cache, but other options are write back, write through, and direct sync. I don't see a page on the wiki that...

The installation guide at http://pve.proxmox.com/wiki/Installation#Virtual_Machines_.28KVM.29 suggests using virtio if the guest OS supports it. I'll be installing a CentOS 6 VM, which does seem to support virtio, but I'm seeing some comments around here suggesting that VIRTIO SCSI might be...

I've installed Proxmox VE 4 on ZFS (currently a single disk for testing, will be on a larger pool in production), and set up ZFS storage on the server. I've created a couple of VMs on the machine, and I see that their virtual disks are being created as zvols, which makes perfect sense. I have...

I’ve just come across Proxmox, and have been playing with it for a couple of days. So far, I’m liking what I’m seeing. I’m wondering if it would be possible to use it in the (or a) way I have in mind. I’ve been running SME Server (www . contribs . org) at home for about the last 15 years...