SD Error copying /.MobileBackups

[fq360]

ah i got you now, so if i connect my external drive directly to MBP it will create a bootable disk

if i create a backup over network to Time machine this would be virtual image and only be able to restore via disk utility from recovery disk.

therefore is it wise to do a bootable copy and virtual image on both external drive and time machine incase one backup fails?

thanks again for your patience really appreciated