[mythtv-users] Always record like TiVO (was Re: OT: Interesting study on HDD failure by Googlelabs)

[Chris Pinkham]

Just to clarify a few things for the archives. :)

* On Mon Feb 19, 2007 at 01:08:31PM -0500, Michael T. Dean wrote:
> As is people are/have been whining about the fact that LiveTV is only 
> expired once per day so they can't "see how much disk space is 
> available".

Not that it matters much to the course of this discussion, but I wanted
to clarify that LiveTV programs are expired multiple times per day.
Short LiveTV programs (less than 2 minutes) are expired every 2 minutes.
Long LiveTV programs are expired every time the main expirer runs.  The
issue with Long LiveTV programs is that the aging time limit is a specific
number of days, with 1 day being the minimum.

Someone can always run Myth in an unsupported fashion and set
AutoExpireLiveTVMaxAge to 0 in their database.

> If tuners were always recording, there would always be 0 
> space available (although, perhaps on only one of potentially many 
> partitions with the new Storage Groups).

When recording LiveTV, the recorder will ask the main Storage Groups code
for the best place to record the next LiveTV program every time the
program changes.  If there is too much of a delay in this query, it defaults
to the directory with the most disk space free.

--
Chris