ceph

Here's what I did. When I first set up the 3-node cluster I only had 1 cable for the storage network, ie. where each host is connected 10Gb/s to a switch so they can use a shared storage scheme (Ceph - to which I'm fairly new and just learning) This week we got the extra cables ordered (because...

Hi I have built a proxmox cluster and im running ceph on there. I have another proxmox node - out side the cluster and for now don't want to connect it to the cluster but I want to share the ceph filesystem - so the rdb and a cephfs so I'm thinking i need to do something like this on the...

Hello Community, I am currently setting up our new 3-Node Proxmox Cluster, pretty new to Proxmox itself. We are Using Full-Mesh with 25Gbit/s cards for Ceph, 10Gbit/s cards for Coro/VMBR and 18 (6 per Node) SATA 6G Enterprise SSDs. Ceph performance took a bit of testing, but we are now at a...

Hi got a 6 node cluster , want to reduce the number of nodes. so lets say i have server A1 and server A4 out of a1..A6 I have ceph installed on all node I want to take the drives (OSD one) out of A1 and install them into A4 with out having to resync the entire drive. I have read its possible...

Hi guys, I have a Ceph pool that I removed by accident and then I readded it back in my proxmox cluster. I had a VM disks in there before I removed and when I added the Ceph pool back in, they're not showing up. I can see that the data is there when I take a look at the storage metrics and run...

I set up a home lab of 3 machines to set up a proxmox cluster so I could learn how to do it. I got through the ceph setup and started setting up a cephfs, but when I set it up, for some reason, I cannot create any VMs on it, and can only use the storage local to each host. I found the content...

Hello! I have a LXC that's on a (deprecated by ourselves) erasure coding pool. I want to move their 20TB mountpoint to a SSD erasure coding pool, without taking down the container. First I tried to take down the container and do a migration, but this activity was taking longer than a week, so...

So I have this cluster in mind: PLEASE keep in mind the availability of hardware be it new/used server/workstation hardware is quit unorthodox and different Here from what's available in the us/eu. for example a single used epyc 9654 costs 10x a 9950x and that's just a single cpu, a single...

I upgraded my Proxmox cluster from the latest 8.4 version to 9.0, post upgrade most things went well. However the Ceph cluster has not gone as well. All monitors, OSDs, and metadata servers have all upgraded to Ceph 19.2.3, however, all of my manager services have failed. They ran for a while...

Good Morning While we were doing upgrades to our cluster (upgraded each memory from 256 to 512 - 3 identical nodes), doing one node at a time and all VM's removed from HA and switched off, we noticed that after a node comes online it takes approximately 20-30 minutes for the Remap/Scrub/Clean...

Hello community! I have a theoretical question for you: In case a proxmox node dies and is reinstalled, can the ceph osds with data be salvaged? Given we know the original fsid, reinstall ceph on the reinstalled node, reconfigure it to the original fsid, can we do just 'ceph-volume lvm...

PVE wiki details you should assign CPU cores to CEPH: https://pve.proxmox.com/wiki/Deploy_Hyper-Converged_Ceph_Cluster It doesn't detail on how it (excluding 25% of the cores from VMs) should be done. How do you run your systems?

Moin zusammen! beim betroffenen Cluster handelt es sich um einen 8-Node Proxmox-Cluster, bei dem 6 Nodes davon einen Ceph-Cluster bereitstellen. Auf einem der Nodes (vs4, stellt keine Ceph-Dienste bereit, nutzt aber den Ceph-rbd-Pool für VMs) habe ich das Problem, dass sich die darauf...

Greetings. I'm looking to move from Citrix Xencenter to something else and Proxmox has been highly recommended. My current setup involves clustering of three nodes with two NAS units (TrueNAS Scale) for load balancing storage. I would like to do something identical or similar using Proxmox but...

Hallo, wie migriert man (Best-Practice) VMs+Containers (Ceph-Pool/RBD) und CephFS von PVE8/Ceph in einen neuen PVE/Ceph-Cluster? Gibt es eine andere Methode als Backup und Restore? Vor allem bei VMs mit TByte RBD-Volumes. Container per Backup/Restore, ist kein Thema, die haben eh nur OS...

Hi, What is the 'normal/expected' VM disk performance on Ceph? In this instance, it's; - 4 x nodes each with 1 x NVMe (3000MB/s ish) - Dedicated Ceph network - 20G bonded links between nodes/switch (iperf 17.5Gbit/s) - MTU jumbo Here is an example rdb bench test (lowest 289 MiB/s)...

Hi, I'm not sure how, but my Ceph was set to (# of PGs: 32). I found this while investigating slow disk speed on VMs. From the docs: I've changed my PGs in PVE GUI to match the docs 128 PGs, Ceph starts to rebalance, and the PGs start to fall again. It's back down to 32 now: How do I get...

Hello, I have a cluster of 4 servers in a proxmox datacenter. On these, CEPH is configured. All the servers are added as monitors and manager, everything is working properly. There is also a CRUSH rule for HDD and for SSD storage. Ceph version is 18.2.2 On 3 of 4 servers, there are HDD and SSD...

Hallo zusammen, ich baue aktuell einen 3-Node-Proxmox-Cluster mit Ceph auf. Die Nodes sind jeweils per LACP an zwei Dell-Switches (100 Gbit) angebunden. Netzwerktopologie: Switch 1: → 100 Gbit → Node 1 → 100 Gbit → Node 2 → 100 Gbit → Node 3 Switch 2: → 100 Gbit → Node 1 → 100 Gbit → Node 2 →...

I have a 3 node proxmox cluster running Ceph. Recently is gave a warning that one of the three monitors is down or "out of quorum". root@pve-02:~# ceph -s cluster: id: f9b7ff0a-17b9-40d8-b897-cebfffb0ee8d health: HEALTH_WARN 1/3 mons down, quorum pve-01,pve-03...