[mythtv-users] Western Digital Red for Myth

Stephen Worthington stephen_agent at jsw.gen.nz
Sun Aug 25 05:57:32 UTC 2013


On Sat, 24 Aug 2013 22:05:22 -0700, you wrote:

>
>-----Original Message-----
>From: mythtv-users-bounces at mythtv.org
>[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Stephen Worthington
>Sent: Saturday, August 24, 2013 6:08 PM
>To: Discussion about MythTV
>Subject: Re: [mythtv-users] Western Digital Red for Myth
>
>On Sat, 24 Aug 2013 14:34:22 -0500, you wrote:
>
>>On 08/24/2013 12:44 PM, Stephen Worthington wrote:
>>> On Sat, 24 Aug 2013 12:43:25 -0400, you wrote:
>>...
>>> I have not done any calculations to see what that limit would mean, 
>>> for my usage of a MythTV drive, but 55 Tbytes does not seem too small 
>>> a number.
>>...
>>
>>*Very* roughly: 55,000,000,000,000 / 6,000,000,000 / 365 = 25 1 Hour HD
>Recordings/Day.
>>Then divide 25 by 2 for commercial flagging and by 2 again if you 
>>actually want to watch the recording. ~~6 shows/day?  Hmmm, left out some
>number of preview generations/views.
>
>And you can leave out the commercial flagging from that if you have a fast
>CPU like I have on the backend that runs the flagging in realtime out of the
>disk buffers.
>
>//
>What do you consider a fast CPU? My BE is currently running on a Core i7 930
>with 12gb of RAM and it finishes the flagging of a 3 hour show about 2 hours
>after the show is finished.
>
>mike

I am running an AMD Bulldozer FX-4100 quad core 3.6 GHz - last year's
cheap AMD option.  The flagging takes well less than one core per
recording.  The entire new motherboard, CPU and 8 Gibytes of RAM was
only about NZ$500 (approx US$386) in May last year.


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