rbd map: "RBD image feature set mismatch"

A new package of libpve-storage-perl is already available in the repository and contains a fix for the image feature issue.
 
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Reactions: Maxemilian Hilbrand
I noticed that the same problem comes when trying to make a backup from a ceph storage when krbd is enabled to support containers.

INFO: starting new backup job: vzdump 100 --remove 0 --mode snapshot --storage glusterfs --node pve02 --compress lzo
INFO: Starting Backup of VM 100 (qemu)
INFO: status = running
INFO: update VM 100: -lock backup
INFO: VM Name: ProxyMox
INFO: include disk 'scsi0' 'ceph:vm-100-disk-1' 80G
RBD image feature set mismatch. You can disable features unsupported by the kernel with "rbd feature disable ecpool/vm-100-disk-1 object-map fast-diff deep-flatten".
In some cases useful info is found in syslog - try "dmesg | tail".
rbd: sysfs write failed
ERROR: Backup of VM 100 failed - can't mount rbd volume vm-100-disk-1: rbd: sysfs write failed
INFO: Backup job finished with errors
TASK ERROR: job errors

I have to add we are trying to backup to a glusterfs storage.

This only occurs only when making a backup on VM and not a container.
 
RBD image feature set mismatch. You can disable features unsupported by the kernel with "rbd feature disable ecpool/vm-100-disk-1 object-map fast-diff deep-flatten".
Is it gone, after installing the latest 'libpve-storage-perl'.
 

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