Hi, I’m new TrueNAS and running my own server so I’m a little confused by what my system is showing me. I’ve built it out of old parts (hopefully showing in my signature) and second hand hard drives.
When I look at the Storage Dashboard and look at the ZFS Health card it shows me Total zfs errors: 0.
Then when I look at the Topology card and click through to Manage Devices, it lists all my drives, but shows thousands of (ZFS) errors, 2k plus.
I find this a little confusing and contradictory. Is someone able to help explain to me why this is and what it means, or point me in the direct of where I can read up and understand whats happening here.
Another thing that’s confusing is that on the Manage Devices screen it shows drive status as DEGRADED, but in the Disk Health card on the Storage Screen it has a 
green tick.
I understand these are probably different things, but I’m hoping for some clarity.
Another thing to had is one of my drives FAULTED (sdb) so I added a new drive sde to replace it with. Now a few more of my drives are showing as DEGRADED. sdd was already starting to show errors in my notifications, but sdf is now as well. Some guidance on this would also be helpful.
Thanks.
I’ll try to add images later, but it won’t let me add them at the moment.