How to backup a VM without the physical disk's connected

[nick]

Dear all,

I create a VM with Windows Server 2012 R2 on a 160GB Virtual Disk but I also attach to this machine a physical RAID 1 disk (2TB).

virtio0: VM-RAID1:120/vm-120-disk-1.raw,cache=writeback,size=160G
virtio1: /dev/sdb,size=1906394M

Everything work fine until I start a backup job. If I start the job without the physical disk the task end in 2 minutes. But, if I run the job with the physical disk attached the task end in more than 3 hours (and the 2TB disk it's empty - only format in NTFS)

There is any way o define a backup job without the physical disk?

Thank you!

 

[fabian]

yes, set "backup=0" on the disk (either in the GUI, or with "qm set")

 

[nick]

Work perfect now. This is the code.

virtio1: /dev/sdb,size=1906394M,backup=0

Thank you for support!