[mythtv-users] how much is enough -- configuring a server

Wade mythtv at hotblack.co.nz
Fri Nov 16 04:19:28 UTC 2007

Chris Ribe wrote:
> On Nov 15, 2007 9:50 AM, Mark J. Small <msmall at eastlink.ca> wrote:
>> On November 15, 2007, Tom Dexter wrote:
>>> On Nov 15, 2007 5:39 AM, Mark Small <msmall at eastlink.ca> wrote:
>>>> In such a system, your biggest bottleneck will likely be bandwidth to
>> the
>>>> hard disk(s).  If you've got 4 folks watching HDTV streams, that's a
>> TON
>>>> of data the gets written and read constantly.
> While I won't argue that I/O is a potential issue, it not THAT big of an
> issue.  4 HD streams only amount to about 7MB/s of data.   If you have 4 HD
> tuners, you'll probably want more than one disk for storage, but you could
> get by with a  single SATA  disk.
> -chris

I don't know where everyone got this number of 4 streams.  The OP said 
he was going to have 8 clients and 4 tuners.  That give a possible 
maximum of 12 streams of data (+ 4 depending on how he sets up 
commercial flagging).  Disk I/O will be his major concern. And it's not 
total sustained throughput that will be the issue, it'll be all the 
constant seeking that will be the issue...

  - Wade

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