[kwlug-disc] MDADM and RAID

[Rashkae]

John Van Ostrand wrote:

> Those same disks as RAID0+1:
> 
>         md0 : active raid0 sde1[3] sdd1[2] sdc1[1] sdb1[0]
>               286727680 blocks 64k chunks
> 
> Performed the write at 513MB/s, total time 10 seconds
> 

I'm a little out of my element here, so forgive possible ignorance.

Where do you get the +1 from? All I see here is a single Raid 0 array, 
which should, by definition multiply max throughput by the number of 
drives (as you demonstrate), but provides no redundancy.