[mythtv-users] how much is enough -- configuring a server
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
>>>> hard disk(s). If you've got 4 folks watching HDTV streams, that's a
>>>> 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.
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...
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