File system over iSCSI

[omegared77]

What's the best solution to get a filesystem accepting qcow disk files, and snapshots when using a storage via iSCSI ?

The basic solution is LVM, but it's not possible to have snapshots neither qcow.

 

[Stoiko Ivanov]

hmm - you can create a filesystem on a iSCSI Lun and export it via NFS (however the NFS server then is a new single point of failure) - maybe the SAN can do NFS as well?

depending on your iSCSI target - ZFS over iSCSI might be an option (if your iSCSI target is a Linux server or OpenSolaris or FreeBSD)

I hope that helps

 

[omegared77]

The SAN is a HP MSA, so unfortunately no NFS...
The Proxmox nodes are connected to the iSCSI, but presented as a volume.





Then, the basic solution is to create a volume group and LVMs for the VMs disks, but won't allow QCOW and snapshots as it's block





I come from the VMware world, where you get the LUNs, and then create DS based on VMFS.
So ZFS over iSCSI would be the closer equivalent ?

 

[Stoiko Ivanov]

So ZFS over iSCSI would be the closer equivalent ?

ZFS over iSCSI will not work with a MSA.

ZFS over iSCSI has a zpool on the target side and creates a ZVOL, which it exports over the iSCSI stack (e.g. LIO on linux) to the PVE-node.
the ZVOL creation and iSCSI configuration happens over ssh

see the reference documentation: https://pve.proxmox.com/pve-docs/chapter-pvesm.html

 

[Dmitrius7]

What's the best solution to get a filesystem accepting qcow disk files, and snapshots when using a storage via iSCSI ?

The basic solution is LVM, but it's not possible to have snapshots neither qcow.

Hello!

I have same problem. Did you find solution?