Add facts that allow determining the RAID type on the node. This information can be used to automatically enable RAID monitoring using modules such as these:
Currently the following facts are available:
- has_swraid: returns true if Linux Software RAID is enabled on the node. Otherwise returns false.
- hwraid_type: returns the RAID controller type (3w-9xxx, megaraid_sas, aacraid, 3w-sas)
The facts have currently been confined to Linux, but adding support for other platforms like FreeBSD should be fairly straightforward. Both software and hardware RAID detection should work properly on all modern Linux distros.