windows server backup issues with shadow copy space

[klabacita]

Hello guys.

 

I have a server running windows 2012 R2 backup services.

The server has a Hyper-V with 3 VMs on it.(C drive)

The E Drive has 2 VM's.

 

I want to do a bare metal backup with a externa HD with 3.7TB size available.

 

My drives size are:

C: 1.8TB available 150GB

E: 650GB available 270GB

My external drive has 3.7TB

 

Went I want to run the backup, I got a error saying that shadow copy is unable to continue because doesn't have enough space available.

 

Them my doubt are:

 

1) the shadow copy process on each drive, use the same drive for the task? if Yes, is possible to use a temporal drive and help this process to finish? My drive has little space available right?

2)In this task, the process chose all the drives available, if I want to backup my VM's, I have to chose them from the Hyper-V list the gui show me or I went the process select the whole drive, is taking backups from my VM's? i upload a picture related to this last question.

Thanks for your help and time!!!