I've got several questions about mount features that I've been unable to
find definitive answers for.
ITEM: So there are some mount options that I'd like to be able to pin
onto a media like compress=lzo on a thumb drive I expect to get crowded.
Is there a feature equivalent to the -o option to tune2fs either present
or planned?
ITEM: Is there a means (or a plan for a means) to use a subvol as a
means to prevent/change active features from propigating to a
subdirectory? An example would be a means to turn off autodefrag or
compression for a subvolume full of virtual machine images, whilest
having it active for the bulk of the filesystem.
ITEM: If I make one file system and have subvols /__System /home and
/VMs and mount those as / /home and /usr/local/VMs respectively, with
differing feature options for each, will those options be separately
honored or will the last-mounted or first-mounted subvolume's options
take dominant effect? Compression, auto-defragment, and commit interval
being of primary concern.
ITEM: Is there a no-compress attribute (or something similar) for
negating compress= mount options on specific files or directories? How
about a no-autodefrag?
(I'm about to set up a system and some standards that may last many
years and I'm trying to find the reasonable bounds of where I need to do
hard partitioning.)
--Rob.
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