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I know it is an old thread, but seeing a fresh posting just days ago, I decided to pitch in. I will open a fresh thread at later time with that has been happening in our environment. Just wanted to say that I too have this VM lock up issue. Applying the virtio-single, iothread and...

:D I know what you mean. The doc has lot of info. I actually had to boil it down to simple bullet point step checklist and just followed that over and over just so i dont miss any steps.

The error would depend what kind of ZFS raid are you using or general layout of the drives. With RAID-Z2/Z3 it is rare to see a data corruption unless there are multiple physical drive errors which happens to hold chunks of same data block. How did you setup your zpool?

I have upgraded many dozens of Proxmox 6.x to 7 without boot issue. I followed this doc: https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0 I made sure the the node was first fully updated on latest 6.x. Then started the 7 upgrade process. I did make sure to run pve6to7 script before...

Strange that this benchmark result shows so low given the specs. Perhaps because of the drives. CPU: Xeon E5520 Dual Socket 16 Cores RAM: 48GB RAM HDD: 10x2TB 3.5" Seagate Barracuda in ZFS Raid-Z3 NIC: 2x10Gbps SFP+ Uploaded 94 chunks in 5 seconds. Time per request: 54014 microseconds. TLS...

First thing to do is to run benchmark on the PBS server and see how fast your server actually is. The output should give you some indication. # proxmox-backup-client benchmark

Try this, ceph tell osd.* injectargs '--osd-max-backfills 2'

Your title says VDI but you are intending automated access into VMs. So without knowing the details, I am assuming you are trying to give user console access to a VMs using VNC/RDP/SSH of Guacamole. I will highly highly recommend against it as will many others. Regardless of the need, you want...

I will be sure to check it out. Thanks for keep working on it. Greatly appreciated.

I actually abandoned backy2 many months ago. It just not a good fit for a large environment in my opinion. It is powerful in it's own right no doubt but few mechanics of backy2 just hard to deal with. After finding out how simple and effective eve4pe-barc was to backup/restore Ceph disk images I...

Is there a way to prevent Proxmox from rewriting ceph.conf? I have added some radosgw configs. If I happen to add/remove MON/MDS or in some case restart any ceph service, Proxmox seems to remove all radosgw manual config. It only keeps what is being managed through GUI. Such as MON, MDS.

It is probably too late for a reply, but in case someone else looking for info. As far as I know, this is the safest way to upgrade without impacting cluster performance to a point it becomes unusable during re-balancing. You can speed up recovery greatly with tweaks such as increasing Backfill...

Hello Proxmox Community, Anybody using KernelCare from CloudLinux with Proxmox VE 6 or recommend it?

To replace older drives with newer ones in a Ceph cluster, add the new one, wait for the rebalancing to finish. Then stop and out the old drive. Wait for the rebalancing to finish and remove the drive. Repeat till all the drives have been replaced. This is a fairly common scenario. As for...

This is what I use when reinstalling OS drive on Ceph nodes and OSDs are not automatically recognized. This is an OSD by OSD process so take your time to avoid any mistake and lose any OSDs: 1. Reinstall Proxmox as usual. 2. Find out which OSD does the drive /dev/sdX belongs to. For example...

I went ahead with Zram as well. The host itself got plenty of RAM. But some LXC running inside is limited to allocated memory which may not need to swap time to time. I used the following procedure: 1. Load zram module $ modprobe zram 2. Make the module autoload during reboot by adding zram in...

If you are putting those Ceph nodes on 40g SFP+ for Sync cluster then you will be fine. Otherwise you are going to saturate your 10g network with 24 SSDs per node during rebalancing. This chassis comes with dual 10g so I am assuming you are going to have 2 separate networks for Ceph Public and...

That is it. Rechecking the nodes, all the ceph pmx node OSs are on single enterprise HDD. The pmx nodes in question OSs are on mirror ZFS SSD. All these nodes were cleanly installed with Proxmox 5.4 and now upgraded to 6. Any node with ZFS mirror SSD the swap is missing. It looks like I never...

I am aware of the swaippness parameters. I have been using vm.swappiness=0 for all nodes. What I am asking, is there a way to have LXCs use shared storage as swap device and not the host swap space.

I can add them again, but it happened to all 9 nodes. So I was wandering if it was done intentionally by Proxmox because it is better to disable SWAP on host. I personally prefer to keep it off so Proxmox does not constantly write to the SSD OS drive. But I also want LXCs to have SWAP.