ZFS 0.7.6 release

ZFS on Linux 0.7.6 has now landed.

https://github.com/zfsonlinux/zfs/releases/tag/zfs-0.7.6

For everyone running the 0.7.0-0.7.5 builds I would encourage people to look into updating as there are a few performance fixes associated with this build.
Large storage servers tend to have ample hardware, however if you're running this on systems with a small amount of RAM then the fixes may have a dramatic performance improvement.
Anecdotally I've also seen some improvements on a system which hosts a large number of smaller files which could be due to some fixes around the ZFS cache.


What if an update goes wrong?

I'm linking a draft of a flowchart I'm still working on to help debug what to do if a ZFS filesystem has disappeared after rebooting a machine:
https://drive.google.com/file/d/1hqY_qTfdpo-g_qApcP9nSknIm8X3wMwo/view?usp=sharing(Download and view offline for best results, there's a few things to check for!)