Hi all,
As many, we are also contemplating a move from broadcom/vmware to proxmox, and are starting with a PoC now.
I ran proxmox in the past with ceph cluster, so I know how great that combination it, but ceph is (now) not going to happen where I work, so: no ceph.
At the institute we have a netapp ONTAP and a compellent mostly serving iscsi LUNs. Compellent will be phased out, netapp is the future here.
I checked https://pve.proxmox.com/wiki/Storage, and since we want quick and efficient live migrations, we will need a shared storage.
We also need snaphots, and we would very much like to thin provision our VMs.
From how I understand it, that leaves us with qcow2 on NFS. However I read that performce wise this is always the best. (fragmentation, and qcow2 metadata overhead) And generally I'm not very enthousiastic about using NFS as shared storage for vm images: I have seen mounts go stale/become unresponsive a few too many times. (on NFS3, perhaps NFS4 is better...?)
What seems interesting is: map compellent multipath iscsi LUNs block devices to pve, put lvm-thin on it, and use that for VMs. However (from the wiki) I understand this is not cluster-safe.
The question here: is there anything I am overlooking? Given the above, what can you recommend to us? Can we expect new upcoming developments in this area..? For example lvm-thin becoming shared-able..?
As many, we are also contemplating a move from broadcom/vmware to proxmox, and are starting with a PoC now.
I ran proxmox in the past with ceph cluster, so I know how great that combination it, but ceph is (now) not going to happen where I work, so: no ceph.
At the institute we have a netapp ONTAP and a compellent mostly serving iscsi LUNs. Compellent will be phased out, netapp is the future here.
I checked https://pve.proxmox.com/wiki/Storage, and since we want quick and efficient live migrations, we will need a shared storage.
We also need snaphots, and we would very much like to thin provision our VMs.
From how I understand it, that leaves us with qcow2 on NFS. However I read that performce wise this is always the best. (fragmentation, and qcow2 metadata overhead) And generally I'm not very enthousiastic about using NFS as shared storage for vm images: I have seen mounts go stale/become unresponsive a few too many times. (on NFS3, perhaps NFS4 is better...?)
What seems interesting is: map compellent multipath iscsi LUNs block devices to pve, put lvm-thin on it, and use that for VMs. However (from the wiki) I understand this is not cluster-safe.
The question here: is there anything I am overlooking? Given the above, what can you recommend to us? Can we expect new upcoming developments in this area..? For example lvm-thin becoming shared-able..?
