[CentOS] Software RAID10 - which two disks can fail?

Tue Apr 8 08:03:51 UTC 2014
John R Pierce <pierce at hogranch.com>

On 4/8/2014 12:35 AM, Rafał Radecki wrote:
> The raid10 name is very misleading. I came to the same conclusion
> yesterday: for sake of clarity I will make two raid1 arrays and combine
> them into a raid0;)
>
> Thanks for all info.

its striped mirrors, its just that it treats it all as one big raid 
rather than as distinct subraids.

having the separate mirrors and stripe can be an annoying complication, 
I"ve done it that way plenty of times before.

/dev/md2:
   /dev/md0:
      /dev/sda1
      /dev/sdb1
   /dev/md1:
      /dev/sdc1
      /dev/sdd1

meh.