...1+0) LUN of 2TB. The LUNS were then mapped to a 4Gbps controller port. The X2270 has 1 PCI-E slot, and the dualported HBA was connected to the 2 x 6140 arrays. In Linux fdisk -l will list the partition tables of all the disks attached...
http://blogs.sun.com/mayur/entry/mounting_etc3_filesystems_on_x2270
...adapters, makes it easy to design redundant systems for maximum fault-tolerance. The availability of 2.5-inch dual-ported SAS drives in addition to the standard 3.5-inch drive enables fully fault-tolerant designs in new technically...
http://www.adaptec.com/pdfs/SASWhitepaper_lo.pdf