Question about storage config

[.n3]

Hey,

I created a RAIDZ data tank and create a few datasets

zfs create data_tank/backups
zfs create data_tank/images
zfs create data_tank/vm-drives

After that I added directorys to my storage as follow




I add few images and templates, but it seems, that the storage don't use the data tank, but to 80GB hdd of the proxmox installation



Compared to the first image you can see, that the rpool is used



What did I wrong and how to fix it?

 

[Dunuin]

You pointed the directory storges to "/tank/images". In case you didn`t specified a custom mountpoint, ZFS will mount it at "/data_tank/images". So you are actually pointing your directory storage to a folder on your root filesystem.

You should by the way set "is_mountpoint: yes" for your directory storages, which can only be done through CLI (for example pvesm set YourStorageID --is_mountpoint yes). This will prevent PVE from using the storage when mounting of the dataset fails, so you don't fill up your root filesystem by accident until the server crashes.

 

[.n3]

I do not understand it full. First, is there a typo because you wrote "/tank/images/. Did you mean "/data_tank/" images?

Where was my mistake? At "zfs create data_tank/backups" or when I add the diretory to the storage?

Can I specifie the mountpoint afterwards, or do I have to delete the diretory and the dataset?

 

[Dunuin]

I do not understand it full. First, is there a typo because you wrote "/tank/images/. Did you mean "/data_tank/" images?

Look at your image. You typed in "/tank/images" as your path for that storage...

...instead of "/data_tank/images" what would be the correct mountpoint according to your other picture:

Where was my mistake? At "zfs create data_tank/backups" or when I add the diretory to the storage?

Probably when adding the directory storage. Show us your /etc/pve/storage.cfg and we can tell you if you used a wrong path.

Can I specifie the mountpoint afterwards, or do I have to delete the diretory and the dataset?

You don't have to delete the dataset. And yes, it is possible to change the mountpoint of a dataset, but I would recreate that directory storage instead.

 

[.n3]

my fault... ‍

here is the storage.cfg



So I can delete the directory and create a new directory with the correct path and then set

pvesm set YourStorageID --is_mountpoint yes

like

pvesm set images --is_mountpoint yes

 

[Dunuin]

my fault... ‍

here is the storage.cfg

View attachment 49216

So I can delete the directory and create a new directory with the correct path and then set

pvesm set YourStorageID --is_mountpoint yes

like

pvesm set images --is_mountpoint yes

Yes.