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Based on kernel version 3.16. Page generated on 2014-08-06 21:35 EST.

1	What:		/sys/class/scsi_host/hostX/isci_id
2	Date:		June 2011
3	Contact:	Dave Jiang <dave.jiang@intel.com>
4	Description:
5			This file contains the enumerated host ID for the Intel
6			SCU controller. The Intel(R) C600 Series Chipset SATA/SAS
7			Storage Control Unit embeds up to two 4-port controllers in
8			a single PCI device.  The controllers are enumerated in order
9			which usually means the lowest number scsi_host corresponds
10			with the first controller, but this association is not
11			guaranteed.  The 'isci_id' attribute unambiguously identifies
12			the controller index: '0' for the first controller,
13			'1' for the second.
14	
15	What:		/sys/class/scsi_host/hostX/acciopath_status
16	Date:		November 2013
17	Contact:	Stephen M. Cameron <scameron@beardog.cce.hp.com>
18	Description:	This file contains the current status of the "SSD Smart Path"
19			feature of HP Smart Array RAID controllers using the hpsa
20			driver.  SSD Smart Path, when enabled permits the driver to
21			send i/o requests directly to physical devices that are part
22			of a logical drive, bypassing the controllers firmware RAID
23			stack for a performance advantage when possible.  A value of
24			'1' indicates the feature is enabled, and the controller may
25			use the direct i/o path to physical devices.  A value of zero
26			means the feature is disabled and the controller may not use
27			the direct i/o path to physical devices.  This setting is
28			controller wide, affecting all configured logical drives on the
29			controller.  This file is readable and writable.
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