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

John Drescher drescherjm at gmail.com
Wed Dec 17 16:47:05 UTC 2008


On Wed, Dec 17, 2008 at 10:58 AM, John Drescher <drescherjm at gmail.com> wrote:
> On Wed, Dec 17, 2008 at 10:50 AM, Sandy Walsh <swalsh at impathnetworks.com> wrote:
>> John Drescher wrote:
>>>>
>>>> 6. Average Seek Time? Do technologies like Western Digital Intelliseek
>>>> make
>>>> any difference or just get in the way?
>>>>
>>>
>>> Although some drives are a little faster with seeks, the differences
>>> will not be a large factor on a myth system.
>>>
>>
>> Interesting. Do you think this would still be the case when recording from
>> multiple capture cards and streaming video as well?
>>
> The data rate usually is not high enough (even with HD) for this to
> make a difference.
>
> It does sometimes cause a problem in raid5 systems that are not fast
> enough (seeks and small writes are a problem in raid5) or do not have
> a large enough cache. Tuning the stripe_cache in software raid5 can
> eliminate the problem.
>
> http://forums.gentoo.org/viewtopic-t-673067-highlight-.html
>

One other comment to add to this is in a non raid system adding a
second drive will have much better effect of reducing the chance of
this than selecting a drive (with storage groups) with a better seek
time.

John


More information about the mythtv-users mailing list