The product specification for Intel's Chipset HM87
states, that it is fully capable of Intel RST, and thus RAID levels 0,1,5,10.
Ramu Ramakesavan and Patrick Thomson publish this white paper about Intel RST under Linux:
http://www.intel.se/content/dam/www/public/us/en/documents/white-papers/rst-linux-paper.pdf
It states, that for Intel RST, RAID1 is well possible with 2 drives. And it tells how to set that up with mdadm
I manage to create the container using
# mdadm –C /dev/md/imsm /dev/sd[a-b] –n 2 –e imsm
When i setup the specific mirror RAID set i receive the following error:
# mdadm –C /dev/md/mirror /dev/md/imsm –n 2 –l 1 –c 16 –z $((250*1024*1024))
mdadm: platform does not support raid1 on 2 disks
Why is that?