Show hard drive setup in linux
Here is a list of commands that provide disk, partition, and other related info (like LVM):
cat /etc/fstabcat /etc/mtabcat /proc/mdstatcat /proc/partitionscat /proc/scsi/scsidffdisk -lmdadm --examine --scandmraid -rdmraid -bpvsvgslvs
I have made this a wiki, so please feel free to add more to the list. Also, some explanation for each of the commands might be nice.
You seem to be running a HP smart array. Might be a hardware raid. Check the hardware setup with cat /proc/driver/cciss/cciss0. http://cciss.sourceforge.net/