Begun Explaining ZFS

Adding a cheat sheet that will go into and describe a ton of information
about ZFS and provide useful links to learn more.
Explain zpool

explaining zpool and its purpose in the ZFS filesystem world
Create a pool

Basic command to create a mirrored pool
Lab5 zpool create command verification

Learn how to verify that the pool was created successfully.
zpool destroy

destroyed our zpool and learned about list
Added Information on pool types

Added information about various pools and what they can be used for
More zpool create examples

Added more examples of using zpool create with a few new concepts
including raidz, log, cache, and hot spares.
Hotspare replacement example

Used the zpool replace command to have a hotspare jump in and save the
pool.
started hardmode writeup
Add Intro to mdadm tutorial

Add introduction to the mdadm tutorial and had the students creating
files using dd and making loop devices with losetup.
Merge branch 'Lab5_ZFS' of https://github.com/pdxcat/nixmentors into Lab5_ZFS
add link to zfs best practices
Merge pull request #3 from pdxcat/Lab5_ZFS

Lab5 zfs