Unable to migrate a VM

[samontetro]

I have a cluster of 3 nodes proxmox VE 4.4-12/e71b7a74 with CEPH storage set up (one pool).
I've created a Linux CentOS7 VM in the CEPH storage pool
I've added a disk in this VM, located in the same CEPH storage pool, to store data with the "No Backup" flag because I do not want to backup these large data when backing up my VM.
This disk is XFS formatted and mounted in the VM on /home.

Live migration fails with:

Mar 15 09:34:23 starting migration of VM 100 to node 'proxmost2' (192.168.22.226)
Mar 15 09:34:24 ERROR: Failed to sync data - can't live migrate attached local disks without with-local-disks option
Mar 15 09:34:24 aborting phase 1 - cleanup resources
Mar 15 09:34:24 ERROR: migration aborted (duration 00:00:01): Failed to sync data - can't live migrate attached local disks without with-local-disks option
TASK ERROR: migration aborted

But the added disk is not local, it is on the CEPH storage pool...
Moreover I fail to find information about this with-local-disks option.

I uncheck the "live" option in the migration pop-up but it fails too with :

"cant migrate running VM without --online (500"

My aim is to allow live migration of this VM

I do not know how to get out of this bad situation.... Thanks for your help

Patrick

 

[tom]

your CentOS ISO is on local storage.

 

[samontetro]

Thanks Tom

I was focusing on OS and data storage, forgotting the cdrom! This is the main difference between the proxmox training session i follow last year and doing again the same config some months later.... but alone in front of my cluster this time

Live migration is running fine now.

Patrick