ZFS on Linux with Ubuntu 18.04 LTS
ZFS is an extremely powerful file system and volume manager for storage. Depending on how ZFS pools configured, they can self-heal files that have suffered bitrot, provide snapshots of data on volumes for quick backups, and have methods to completely duplicate pools to new disks, essentially keeping the same file systems going for years at a time.
This lab introduces the ZFS on Linux kernel module and toolset that are are available in Ubuntu 18.04. We will use two spare disks to create a mirrored ZFS pool that provides compression and will store two copies of a file as a safety precaution. We will look at how we can view the status of this pool, and how to unmount a ZFS dataset and pool from the system.