Sooner or later, every system will have a drive failure.

ZFS was designed with this in mind.

I noticed in my /var/log/kern.log file error messages about one of the drives in my ZFS pool.

Dec  8 07:11:17 nas kernel: [738110.398391] ata8.00: exception Emask 0x0 SAct 0x80000004 SErr 0x0 action 0x0
Dec  8 07:11:17 nas …

After I moved from TrueNAS to Ubuntu on my NAS box, I had some issuing deleting some no-longer-needed directories.

One of the TrueNAS features I used was a jail, but those don't exist in Ubuntu (I moved anything that was in a jail to a Docker container).

Trying to delete the jails directory gave me some heartburn, …

I've been using FreeNAS/TrueNAS for over 8 years, and while it works great as a NAS, some of the idiosyncrasies made me decide to migrate to Ubuntu:

1. TrueNAS is based on FreeBSD, and while it's similar to Linux, it's not 100% the same.

2. The feature set of TrueNAS is overkill for my needs.

   • I'm simple home user.
   • I'm …