| What:		/sys/class/scsi_host/hostX/isci_id | 
 | Date:		June 2011 | 
 | Contact:	Dave Jiang <dave.jiang@intel.com> | 
 | Description: | 
 | 		This file contains the enumerated host ID for the Intel | 
 | 		SCU controller. The Intel(R) C600 Series Chipset SATA/SAS | 
 | 		Storage Control Unit embeds up to two 4-port controllers in | 
 | 		a single PCI device.  The controllers are enumerated in order | 
 | 		which usually means the lowest number scsi_host corresponds | 
 | 		with the first controller, but this association is not | 
 | 		guaranteed.  The 'isci_id' attribute unambiguously identifies | 
 | 		the controller index: '0' for the first controller, | 
 | 		'1' for the second. |