[mythtv-users] How many simultaneous recordings on one drive?

Douglas Peale Douglas_Peale at comcast.net
Thu Sep 29 01:50:38 UTC 2011

On 09/28/2011 01:00 PM, Daniel Kristjansson wrote:
> On Wed, 2011-09-28 at 09:08 -0700, Douglas Peale wrote:
>> In my experience, if you have the database on the same drive as the recordings, the limit is zero recordings.
>> The number of recordings is nearly irrelevant, it is other things like the database that swamp the disk IO for long enough to
>> cause the recording to miss data.
> While I would still recommend putting the database on it's own spindle
> if you run into any performance issues, modern drives are pretty fast.
> Since SATA replaced PATA local disk I/O has only been an issue for the
> more extreme setups. I should note that the MythTV architecture also
> improved, we write to the DB in it's own thread, read from the device
> in it's own thread and write to the disk in it's own thread. This
> decouples operations that could cause problems in the early days.
> -- Daniel
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I was having the issue on an i7 processor system with a 1.5 GB sata drive as reciently as this year or 0.24. The problem did not
go away until I got separate spindles.

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