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.
|
|
What: /sys/class/scsi_host/hostX/acciopath_status
|
Date: November 2013
|
Contact: Stephen M. Cameron <scameron@beardog.cce.hp.com>
|
Description: This file contains the current status of the "SSD Smart Path"
|
feature of HP Smart Array RAID controllers using the hpsa
|
driver. SSD Smart Path, when enabled permits the driver to
|
send i/o requests directly to physical devices that are part
|
of a logical drive, bypassing the controllers firmware RAID
|
stack for a performance advantage when possible. A value of
|
'1' indicates the feature is enabled, and the controller may
|
use the direct i/o path to physical devices. A value of zero
|
means the feature is disabled and the controller may not use
|
the direct i/o path to physical devices. This setting is
|
controller wide, affecting all configured logical drives on the
|
controller. This file is readable and writable.
|
