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

[freedenizen]

On Fri, Apr 8, 2011 at 8:36 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.
>
> I agree that with only one spindle this can be an issue. But with 8? ;)

It depends what you are doing, I have had hardware raid5/6 with 6-8
spindles doing a lot of random I/O and seen issues with myth playback.
 It may work fine, but I would never trust my DB and data to be on the
same set of drives.  It might be because I run things other then myth
on my systems so it can be more of an issue, but it has become SOP for
me to separate them