I’m a new user of TrueNAS, started with the previous version of scale, installed apps using default settings, so have an ix-applications dataset, then upgraded to ElectricEel. What did the upgrade process do? Did it just do a move of the data from ix-applications to ix-apps dataset and mount it as /…

To conclude this thread, you’re not supposed to use the hidden ix-apps dataset for permanent storage, and so you’re not supposed to back it up. If you have important app data you want to keep, you’re supposed to configure your apps to use your own datasets, and then you can back them up as normal. …

it’s most likely that ix-applications is current .ix-apps is the one in use in 24.10 and the previous ix-applications is retained in case you need to roll back. A fresh install of 24.10 does not create an ix-applications dataset.

[image] DjP-iX: .ix-apps is the one in use in 24.10 Where is this documented? And having wiped my only data pool, which moved .ix-apps to my boot pool (leaving it apparently empty, by the way), how do I now get .ix-apps on my new data pool and restore my app data to that location?

It’s mentioned in a few spots in: TrueNAS Apps | TrueNAS Documentation Hub , but we can work on a more focused section explaining the file structure. As for the second question, I’m not entirely sure how you would go about fixing that. So you had one data pool containing both the apps pool and gener…

[image] DjP-iX: So you had one data pool containing both the apps pool and general storage (not recommended) I have a boot pool on my OS drive, and a data pool on my data drives for everything else. Is that really not recommended? It’s not normal? Anyway, yes. [image] DjP-iX: you already…

[image] DjP-iX: I’m not entirely sure how you would go about fixing that What if I wiped my boot drive now, installed 24.04.2.2, recovered from a config backup I have for that version, and then did the upgrade to 24.10? Will 24.04.2.2 see the ix-applications dataset I created as if it was the…

Ah, reading the apps docs: ixVolumes are not recommended for permanent storage volumes, they are intended for use as rapid storage for a test deployment of the container. We recommend adding datasets and configuring the container storage volumes with the host path option. I guess the recommendat…

Yes a more recommended approach for production apps is to let .ix-apps contain the base app installation and then use host paths to mount storage paths on separate datasets. As for recovering from your current situation, it seems likely that if you reverted to a 24.04 boot environment, deleted ix-a…

official/community apps have mounts for config/data/etc that each app uses. Should be able to just copy, from shell, those to another pool. Then decide if you want to mount those as hostpath/binds to your apps. That way you always know where they live! Too bad Truecharts apps didn’t do it that way,…

I missed this in the docs. TrueNAS Apps Expanding TrueNAS functionality with applications. Note: It was not in 24.10 docs, but was in the TrueNAS Apps docs. [image]

[image] DjP-iX: but we can work on a more focused section explaining the file structure. FWIW, I think hiding the pool “ix-apps” dataset was perhaps not ideal. I understand it’s mounted in a strange place, but the issue is that there is now no visibility on its size in the GUI, or ability to …

How do you backup app data in ElectricEel?

TrueNAS General

Stux November 15, 2024, 5:35am 33

I tested a local migration from one pool to another a few times, and documented it here:

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How do you backup app data in ElectricEel?

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