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HPSA(4)			   Linux Programmer's Manual		       HPSA(4)

       hpsa - HP Smart Array SCSI driver

       modprobe	hpsa [ hpsa_allow_any=1	]

       hpsa is a SCSI driver for HP Smart Array	RAID controllers.

       hpsa_allow_any=1:  This	option allows the driver to attempt to operate
       on any HP Smart Array hardware RAID controller, even if it is  not  ex-
       plicitly	 known to the driver.  This allows newer hardware to work with
       older drivers.  Typically this is used to allow installation of operat-
       ing systems from	media that predates the	RAID controller, though	it may
       also be used to enable hpsa to drive older controllers that would  nor-
       mally  be  handled by the cciss(4) driver.  These older boards have not
       been tested and are not supported with hpsa, and	cciss(4) should	 still
       be used for these.

   Supported hardware
       The hpsa	driver supports	the following Smart Array boards:

	   Smart Array P700M
	   Smart Array P212
	   Smart Array P410
	   Smart Array P410i
	   Smart Array P411
	   Smart Array P812
	   Smart Array P712m
	   Smart Array P711m
	   StorageWorks	P1210m

   Configuration details
       To configure HP Smart Array controllers,	use the	HP Array Configuration
       Utility (either hpacuxe(8) or hpacucli(8))  or  the  Offline  ROM-based
       Configuration  Utility  (ORCA) run from the Smart Array's option	ROM at
       boot time.

   Device nodes
       Logical drives are accessed via the  SCSI  disk	driver	(sd(4)),  tape
       drives  via  the	 SCSI tape driver (st(4)), and the RAID	controller via
       the SCSI	generic	driver (sg(4)),	 with  device  nodes  named  /dev/sd*,
       /dev/st*, and /dev/sg*, respectively.

   HPSA-specific host attribute	files in /sys
	      This  is a write-only attribute.	Writing	to this	attribute will
	      cause the	driver to scan for new,	changed,  or  removed  devices
	      (e.g,.  hot-plugged  tape	drives,	or newly configured or deleted
	      logical drives, etc.)  and  notify  the  SCSI  midlayer  of  any
	      changes  detected.  Normally a rescan is triggered automatically
	      by HP's Array Configuration Utility (either the GUI or the  com-
	      mand-line	 variety);  thus,  for logical drive changes, the user
	      should not normally have to use this attribute.  This  attribute
	      may be useful when hot plugging devices like tape	drives,	or en-
	      tire storage boxes containing preconfigured logical drives.

	      This attribute contains the firmware version of the Smart	Array.

	      For example:

		  # cd /sys/class/scsi_host/host4
		  # cat	firmware_revision

   HPSA-specific disk attribute	files in /sys
	      This attribute contains a	32 hex-digit unique ID for each	 logi-
	      cal drive.

	      For example:

		  # cd /sys/class/scsi_disk/4:0:0:0/device
		  # cat	unique_id

	      This attribute contains the RAID level of	each logical drive.

	      For example:

		  # cd /sys/class/scsi_disk/4:0:0:0/device
		  # cat	raid_level
		  RAID 0

	      This  attribute  contains	 the  16  hex-digit (8 byte) LUN ID by
	      which a logical drive  or	 physical  device  can	be  addressed.
	      c:b:t:l are the controller, bus, target, and lun of the device.

	      For example:

		  # cd /sys/class/scsi_disk/4:0:0:0/device
		  # cat	lunid

   Supported ioctl() operations
       For  compatibility  with	 applications written for the cciss(4) driver,
       many, but not all of the	ioctls supported by the	 cciss(4)  driver  are
       also  supported	by the hpsa driver.  The data structures used by these
       ioctls  are  described  in   the	  Linux	  kernel   source   file   in-

	      These  three  ioctls  all	do exactly the same thing, which is to
	      cause the	driver to rescan for new devices.  This	 does  exactly
	      the same thing as	writing	to the hpsa-specific host "rescan" at-

	      Returns PCI domain, bus, device and function and "board ID" (PCI
	      subsystem	ID).

	      Returns driver version in	three bytes encoded as:

		  (major_version << 16)	| (minor_version << 8) |

	      Allows  "BMIC"  and  "CISS" commands to be passed	through	to the
	      Smart Array.  These are used extensively by the HP Array Config-
	      uration	Utility,   SNMP	  storage  agents,  and	 so  on.   See
	      cciss_vol_status at <>	for some examples.

       cciss(4), sd(4),	st(4), cciss_vol_status(8), hpacucli(8), hpacuxe(8),

       <>, and Documentation/scsi/hpsa.txt  and  Documenta-
       tion/ABI/testing/sysfs-bus-pci-devices-cciss in the Linux kernel	source

       This page is part of release 3.74 of the	Linux  man-pages  project.   A
       description  of	the project, information about reporting bugs, and the
       latest	 version    of	  this	  page,	   can	   be	  found	    at

Linux				  2012-08-05			       HPSA(4)


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