Ubuntu server storage config

Hi Everyobdy,

Sorry for this newbe question.
I have deleted the backup folder /media/BACKUP/urbackup
I then created a new backup mirror with:
zpool create backup mirror /dev/sdb /dev/sdc -m /media/BACKUP
Next is copying some files to make sure so-far-is-so-good.

And the last step is adjusting backup storage path in the server config.

However, all backups are now failing.
An image backup fails with: Backing up System Reserved (SYSVOL) partition failed. Image backup failed
A file backup fails with: Cannot create directory for backup (server error). No such file or directory (code: 2)

What did I miss?

Thank you - Will