[mythtv-users] Dec 2008 - State of the Art - Hard Drive Recommendations?

[John Drescher]

>> Interesting. Any idea what a typical CPU overhead might be for a typical soft raid option?
>
> Depends on your CPU. A Quadcore Q6600 CPU is capable of handling parity calculation at > 4000 MB/s using just one core - this would translate to CPU usage of <1% of one core for the througput needed for an HD recording.
>
With software raid6 and 5 year old 2.0GHz opteron systems I see around
7% cpu usage in a 10 drive raid6 array. So my advice is if you have a
modern cpu this will not be a concern.

John