proxmox cluster setup with Alletra 5000

[powersupport]

Hi,

For integrating Alletra 5000 storage to a proxmox cluster, may I know which is the best file system we can use? there is not much documentation for this scenario

I see some documentations about OCFS2 but not sure if it will work

Thank you.

 

[bbgeek17]

Hi @powersupport ,

Proxmox Server Solutions GmbH does not officially support any clustered file systems.

If you are open to exploring options outside your official support subscription, OCFS2 is likely your only choice. However, it’s important to note that you will be responsible for installing, configuring, and continuously testing its stability, particularly as you apply kernel upgrades over the lifecycle of your infrastructure.

Cheers

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[waltar]

Ceph is a/the supported cluster filesystem but that's not really an option for a allegra. HA-NFS is an option too.
Nevertheless I assume there will be still an operating concept which will be applied for a/the pve cluster of the 30 nodes as this is not a POC now.

 

[bbgeek17]

Ceph is a/the supported cluster filesystem but that's not really an option

To be semantically correct - Ceph is not a filesystem, its an object data store. CephFS is the filesystem layer above it.
Ceph is a distributed storage system which is the opposite of the Centralized SAN that OP's Alletra is. Ceph was not designed for it.

Based on other threads that OP opened his storage only provides iSCSI and FC, so while HA-NFS is an option - it requires additional hardware resources and careful implementation if it is to be used for critical production environment.

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Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[alexskysilk]

For integrating Alletra 5000 storage to a proxmox cluster, may I know which is the best file system we can use? there is not much documentation for this scenario

When you strip down all the marketing buzzwords, the Alletra 5000 is an iscsi SAN. the only way to (sanely) use an iSCSI SAN in a PVE environment is as a standard block SAN, Which means one of two ways:
Host Attached: LUNS are managed by PVE, and assigned as LVM VGs. This allows more flexibility, but makes using storage snapshots more unsafe since they will (potentially) impact multiple guest vdisks. You can get around this by using single lun per vdisk.
Guest Attached: pass LUNs directly to guests.

In either case, what would be missing is snapshot control- you would need to write/orchestrate snapshot quiescence, as well as reversion/restoration. Its "simple" for snapshot creation, but can be quite complex for actually using the snapshots. Because of this, if you're still in the planning stages you might want to rethink this solution for PVE use- or plan on investing in tooling development.