[mythtv-users] question about RAID

[James C. Dastrup]

>?On Monday 09 January 2006 14:53, James C. Dastrup wrote:
>> >All RAID0 does is join (or grow) partitions together.  It is very useful
>> > if you have, for example, three 100GB disks about like them joined into a
>> > 300GB partition.
>>
>> Not exactly. A true RAID 0 (or a striped set) alternates writing each block
>> from one disk to the other. This increases performance because 2 chunks
>> of data can be written at the same time - one chunk to disk 1, one chunk to
>> disk2, etc.
>>
>> Joining partitions together, or extending a volume, is not RAID 0. This
>> does not necessarily increase performance, because data typically won't be
>> written to the second disk until the first is full.
>>
>> In both scenarios, your useable space equals all your disks combined, but
>> only the striped set improves performance.
>>
>
>So what will mdadm do? What is my best option for using 2 drives to get the
>most speed out of them as a combined drive?

mdadm does a true RAID 0