iSCSI - Directory instead of LVM?

tomstephens89

Renowned Member
Mar 10, 2014
177
6
83
Kingsclere, United Kingdom
This is just a quick one...

I run a 16 node production proxmox cluster that in the immediate future will be taking down for an upgrade / rebuild to VE 4.x from 3.3. I am also going to be provisioning a lot more iSCSI storage on our 10Gbit SAN.

Currently I present a couple of large LUNS to the proxmox hosts via iSCSI and have configured multipath devices for each, which I then present as LVM through the proxmox GUI.

I was wondering if I could just do the same, iscsi with multipath... But instead of LVM, format the attached LUN's with a filesystem and add them in as a directory through the Proxmox GUI?

This way I could take advantage of Snapshots again. I don't have any IO performance sensitive applications that require direct LVM volumes so thats not an issue.

Is this possible or would it be a problem when mounting the same formatted LUN's on all 16 hosts?

Tom
 
Hi,

no this is not possible native.

You must use an locking layer to protect the fs on concurrent writes.
GFS2 can handel this.

But this is much overhead for snapshots.
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!