[mythtv-users] Third Tuner, Slave or Master?

Mitch Gore mitchell.gore at gmail.com
Wed Sep 12 15:12:17 UTC 2007


On 9/12/07, Ryan Steffes <rbsteffes at gmail.com> wrote:
>
> I am definitely not a master of the high performance machine.  I'm
> strongly considering adding a third turner to my set up, and I'm
> trying to figure out the best way to go about it.  My current machine
> gives the distinct impression of being a bit overloaded now as far as
> IO goes, but I really don't know how to go about tuning it properly to
> improve performance so I'm more or less stuck with what I've got, or
> blindly following suggestions given by helpful mailing list peoples.
>
> My current set up:
>
> 1 Combination Frontend/Master backend
> 1 Combination Frontend/Slave backend
> 1 Sometimes on slave backend
>
> My master has the following:
>
> 2 x PVR150
> 2 IDE drives (MythVideo, system files, swap)
> 2 SATA drives (1 Storage Group, 1 directory per drive)
>
> My always on slave has a slow laptop hard drive with about 20 Gigs
> free in it and the two storage directories mounted via NFS.
>
> I was thinking about putting a new tuner in the slave and writing to
> the directories via NFS because I was concerned that the PCI bus may
> get overloaded (I do get occasional buffer overruns while watching TV
> and recording from both tuners) due to network traffic just the same
> as if I put the new tuner in the master.
>
> Now I'm thinking adding another storage directory on the slave, which,
> if I understand the storage group concept correctly, it'll write to by
> default, then adding a cron job to copy the files over to the main
> storage groups each night when the master is unlikely to be recording.
>
>
> Any advice would be appreciated,
>
> Ryan
>
> PS I blame network TV for this.  After years of two recorders being
> more than plenty, suddenly they are actually putting a few shows that
> look like they may be worth watching on, and in the fall against my
> basketball game line ups!
>
> PPS Does anyone have any thoughts on the relative value of getting a
> HD Tuner when I don't have any HD TVs to record broadcast HD?  If I
> understand it correctly, I can get that just via antenna despite
> having basic analog cable, right?
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>



geting an HD tuner will make you picture quality WAY better even on a SDTV
compared to analog cable.  yes, you can get the digital station over the air
with an antenna.  check anntenna web for you towers.

Mitchell
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