[mythtv-users] Hardware Setup Advice
linux at thehobsons.co.uk
Thu May 24 18:08:09 UTC 2012
David Crawford wrote:
>Would that mean you would ideally want 20 storage groups per disc
>for 20 streams or 20 spread over the various disc's your using?
As others have said, one per disk.
What you don't want to do is create multiple filesystems on one disk
and use them separately. Doing that guarantees large head movements
during seeks - probably larger on average than using one filesystem.
Eg, if you divide a disk into 4, and have four recordings going, then
you are guaranteed to have to seek to multiple places in the first
quarter, multiple places in the second quarter, multiple places in
the third quarter, and multiple places in the last quarter - each
second. Thus you will **always** have seeks that span over half the
With a single filesystem, then you are likely to have large seek
distances, but not guaranteed.
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