[mythtv-users] Question re: available SATA ports and linux software RAID

Alex Butcher mythlist at assursys.co.uk
Fri Apr 8 15:31:54 UTC 2011


On Fri, 8 Apr 2011, freedenizen wrote:

> On Fri, Apr 8, 2011 at 8:04 AM, Tyler T <tylernt at gmail.com> wrote:
>
>> Just FYI, Linux mdadm software will RAID partitions just as well as disks
>> (which I have done myself with success on more than one machine). For
>> example, you could make a small OS partition and large recordings partition
>> on each of your 2TB drives. Then you can RAID-1 the OS partitions and RAID-6
>> the recordings partitions.
>
> The problem is that you are using the same spindle for your OS (and
> presumably your DB) and recordings.  That configuration can cause
> performance issues.

Never has for me, in five years of running MythTV, on everything from a
Celeron 1.7G to my current i5-760.  Even my recent ionice stuff was
pre-emptive, rather than reactive (with the exception of the ionice'ing in
mythburn.py).

Best Regards,
Alex


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