[mythtv-users] Enough power?

[Jens Peter Vilstrup]

On Tue, 18 Jan 2005 14:03:53 -0800, Brad Templeton
<brad+myth at templetons.com> wrote:
> On Tue, Jan 18, 2005 at 09:54:12PM +0100, Jens Peter Vilstrup wrote:
> > This might be slightly OT. Sorry if I offend anyone.
> > I'm in the planning phase of my MythTV project, but unsure if my
> > planned myth-backend has enough oomph.
> > I have:
> > Tyan Tiger MP with dual 1.4Ghz Athlon XP's and 1GB of RAM.
> > Gbit NIC.
> > 2x PVR-250 cards.
> > Some yet-to-be-determined SATA(n) card(s), possibly RAID (that, or
> > software RAID).
> > A whole lot of harddrives.
> > MySQL will be on a different server.
> >
> > I want to be able to record two shows simultaneously, while watching
> > on two frontends, while copying files at 100Mbit to or from a client
> > PC...
> > In your experience, is this a feasible goal?
> 
> More than feasible, your backend seems to be overpowered.  PVR-250
> effectively [...]
Good. I like overpowered ;-)
I guess I can do some transcoding at the same time then. Awesome.

> There is a network limitation.  If your frontends are on the same
> network as the PCs that are saturating the 100mibt network, then
> a saturated net is a saturated net.  I don't know about gbit networking
> but with 100mbit the rule was that a 10mbit client on the network takes
> 10x the bandwidth it is using, because it is time that matters.   Ie.
> if gbit works the same, then a 100mbit client connected to the switch
> uses all of the switch if it is using the full 100mbit, it doesn't
> use 10% of the switch.
I have a managed 3com switch with a few gbit ports and the rest
100mbit, so I think it should work out alright.