Is it capable of recognising disks set up as zfs mirrors? I have my OS on 256GB SSD while I have two large disks where I keep my data set up as zfs mirrors. I am not very well conversant with docker so everytime I need to do a critical update, I simply create a disk image of my OS drive onto the zfs mirror. Currently, i do it by booting into a live Ubuntu USB and running commands to make it recognise the zfs mirror before cloning the OS disk. If rescuezilla can do it by default, I will prefer it over live Ubuntu.

Those have a modern use too. I keep my power bank in the bag and use it to charge my phone on the go.