Graphs on ZFS space in use

[Alister]

Problem/Justification
In Core there was the usage graphs of the ZFS system. These are missing in Scale

Impact
The ability to see on the system (with out relying on 3rd party software, e.g. HA Truenas integration) how quickly space is being consumed can alert people to an issue ahead of it being a critical one

Whist figures are great they don’t let humans visualise things a picture paints a thousand words

User Story
A Number of years ago I was managing a DAS system that had space issues - the management software provided a graph of space utilisation over time. I printed this out, used a ruler to draw a quick and dirty line extrapolating usage to 100% - then a vertical line down and using the scale gave an very rough estimate of how long we had till we ran out of space.
My Boss took this to the management meeting and instantly senior management saw the issue and timescale - no explanations needed
This prompted a company wide instruction to do housekeeping on the files stored

[sah]

I did not notice it was gone until I read your post. It is not the cleanest thing to do but you can ssh and do “zfs list” and export that to a spreadsheet and make the graphic. Yes, that sucks.

Also you might want to look at the Reporting > Netdata. In Netdata it seems you can configure your own graphs. I have not spent any time seeing what it would take however.

[Alister]

I’m using the TrueNAS integration in HomeAssistant which can have a dashboard

and you can drill in to history

Which is not bad, the issue being if HA loses access to TrueNAS for whatever reason, hence preferring it to be available direct