[mythtv-users] Partition Advice.

[Poul Petersen]

> Aside from the other comments, I would recommend *not* using ext3 on
> your mythtv partition.  The reason being that since recordings take up a
> lot of space, so does your journal. So even if/when you delete a large
> recording the information is still kept in the journal (in case you want
> to roll back).  I've seen a case where a user deleted all the files in
> his mythtv partition, but still had 0 space left, do to the fact that

	Um, this is simply not true - In the default mode data=ordered,
files aren't journaled, only the metadata. But, even in data=journal
mode, all of the file writes are squeezed through the *fixed size*
journal; it doesn't change size with file writes. If someone told me
that they were deleting files and still seeing 0 space free I would
suspect:

	1) The files were hardlinked to another path
	2) There was a process running that was filling the disk
	3) The system was foobar.

	Ext3 does not have the problems you describe (except see #3 
above). Also, you can not "rollback" a file deletion. The only thing the
journal really does in term of a filesystem, any of the journaling
filesystems, is keep a record of what parts of the disk are being changed
up until those changes are commited to disk (this is a bit of a
simplification). This way, in the event of a crash, the repair need only
check a small portion of the disk (the part described in the journal)
and not scan the entire volume.

-poul