Hi,
The openmediavault-unionfilesystems plugin is good but unfortunately defaults to an AUFS create parameter of mfs (most free space). Agreeing with a popular guide, I'd prefer to use pmfsrr, as the more ideal option.
ZitatAlles anzeigencreate=pmfsrr:low:[second]
Selects a writable branch where the parent dir exists, such as tdp mode.
When the parent dir exists on multiple writable branches, aufs selects the
one which has most free space, such as mfs mode. If there are less than
'low' bytes (a percentage would actually be more favorable imo) available
on all branches where the parent dir exists, the writable branch with the
most free space will be selected.
Without this switch, adding new TV episodes, for example, will cause them to go on a different drive than where they already exist, which I suppose is fine if you never leave OMV (but create a scattered mess if you decide to just use the drives later unpooled), but it also means that you would have to have multiple drives spin-up to access the files for one TV Series rather than just the one.
As I understand it, the minimum amount of space option is necessary as well if you are using SnapRAID, where you usually do not want the system completely filling the drive, as you need it to not be completely full to avoid issues with the parity drive(s) running out of space.
I've overridden it in /etc/fstab by replacing create=mfs with create=pmfsrr:10000000000 but it would be nice in a future version if the GUI added the options to select the create type and let you specific the minimum space, even if it was hard coded into a single dropdown with a few size selections. If we would were wishing, it would be nice to be able to edit the aufs entry too, presently you can just add another drive or delete it. That said, I am thankful the GUI plugin exists at all, even if I have to edit the entries it makes.
...Donovan