Storage settings for Cluster

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miguel.pires

New Member
May 30, 2025
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Hi everyone.
I'm trying to set up my first Proxmox cluster with two PowerEdge R660xs and a PowerVault ME5024.
I've managed to configure all the iSCSI paths successfully on both hosts, but now I'm left with the choice of creating an LVM-thin volume that won't let me make live migrations but allows snapshots or an LVM volume that allows live migrations but doesn't allow snapshots to be made.
Do you know if there's any way to accomplish both features in this type of cluster configuration?

Thanks.
 
miguel.pires said:
I've managed to configure all the iSCSI paths successfully on both hosts, but now I'm left with the choice of creating an LVM-thin volume that won't let me make live migrations but allows snapshots or an LVM volume that allows live migrations but doesn't allow snapshots to be made.
Click to expand...
Sadly, that's wrong. LVM-thin can never be used in a shared storage environment, so that LVM thick in the only viable option and does not allow thin provisioning or snapshots.

miguel.pires said:
Do you know if there's any way to accomplish both features in this type of cluster configuration?
Click to expand...
No, your only option is LVM-thick.
 
Last edited:
Thanks for the clarification!

As moving from vMware environments, live migration and snapshots are essential in cluster management.
I will take those limitations in mind.
 
miguel.pires said:
live migration and snapshots are essential in cluster management.
Click to expand...
Live migrations will work. Snapshots on large LUNs + LVM (thick) is currently being worked on, so check out future release notes. Keep in mind that you do not need storage snapshots for the integrated backup functionality.
 
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