Recent content by dpl

We use manually: https://microsoft.github.io/CSS-Exchange/Databases/VSSTester/ for Clean Up / Purging the Exchange Transaction Logs after Proxmox VM Snapshot Backups

Thank you very much, we also wasted many hours debugging, although the solution (unmounting the defective ipmi iso) is so simple

Hello Richard, We have successfully completed the infrastructure upgrade. GPU passthrough also works so far on the 10 machines under kernel 5.15 We only had problems starting UEFI VMs with Ceph storage for a short time. The error "rbd_cache_policy=writeback: invalid conf option...

Running the migrated VMs from the 12 nodes all on the thirteenth node is not intended. The thirteenth node is only used to take over the "VM (KVM) profile settings" and "VM (block) data" in the meantime, so that a data transfer (to CEPH) from the local storage (ZFS) of the nodes takes place...

Hello all, We are currently running a Proxmox cluster consisting of 12 nodes with PVE 6.4 (latest patches) and local ZFS storage. In the future, the PVE cluster will be fully connected using Ceph storage. To migrate the infrastructure to the new PVE version 7.3, we wanted to use our external...

@YAGA - add SSDs / NVMEs to the nodes - create a "replicated_rule" based on "device-class" and move the "cephfs_metadata" pool to the SSDs/NVMEs Maybe this will speed up your CephFS "a bit".

Base Changelog https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15

@hthpr I read now often in the forum that there are problems with the 5.15 kernel (should also be problems with the pci / gpu passthrough). The changelog of 5.15.49 is long, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.49 if necessary it is worth to search for "scheduler" fixes...

You don't need to replicate the "payload" data of the VM itself, you have the shared Ceph RBD storage for that. You only need to run the VM in the Proxmox cluster in HA mode. (All other data cluster solutions like DRBD or GlusterFS are unnecessary)

https://forum.proxmox.com/threads/ceph-sudden-slow-ops-freezes-and-slow-downs.111144/#post-479654

2. CephFS is very resource hungry due to the metadata handling of the MDS, the setup should be well tuned, this requires good planning with division into HDD, SSD and NVME device classes and offloading of the Wal+DB. Yes CephFS has the advantage that you can mount it multiple times directly...

We have had a similar problem, we could not solve it: https://forum.proxmox.com/threads/extremely-slow-ceph-storage-from-over-60-usage.101051/ Therefore, a few comments from my side: 1. With 4 nodes you should not have a monitor or standby MDS active on each node, if one node fails, the...

It is probably due to the activated SWAP root@ceph1-minirack:~# for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done | grep kB | egrep -v "0 kB" pvedaemon worke8536 kB pmxcfs 1192 kB ceph-osd 3188 kB ceph-osd 3184 kB pve-firewall 5544 kB pvestatd...

Es liegt wohl am aktivierten SWAP root@ceph1-minirack:~# for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done | grep kB | egrep -v "0 kB" pvedaemon worke8536 kB pmxcfs 1192 kB ceph-osd 3188 kB ceph-osd 3184 kB pve-firewall 5544 kB pvestatd 796 kB...

And again the RAM is full to swapping root@ceph1-minirack:~# cat /proc/meminfo MemTotal: 24656724 kB MemFree: 208708 kB MemAvailable: 14458664 kB Buffers: 14197188 kB Cached: 229064 kB SwapCached: 4968 kB Active: 4332072 kB Inactive...