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Linux 2.6 - man page for hpsa (linux section 4)

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 explicitly known to  the  driver.   This
       allows newer hardware to work with older drivers.  Typically this is used to allow instal-
       lation of operating systems from media that predates the RAID controller,  though  it  may
       also  be  used to enable hpsa to drive older controllers that would normally 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  Con-
	      figuration  Utility (either the GUI or the command-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 entire stor-
	      age boxes containing pre-configured 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 logical 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

	      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" attribute.

	      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 Configuration Utility,  SNMP  storage  agents,
	      etc.  See cciss_vol_status at <http://cciss.sf.net> for some examples.

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

       <http://cciss.sf.net>,	and   Documentation/scsi/hpsa.txt   and   Documentation/ABI/test-
       ing/sysfs-bus-pci-devices-cciss in the Linux kernel source tree

       This page is part of release 3.55 of the Linux man-pages project.  A  description  of  the
       project,     and    information	  about    reporting	bugs,	 can	be    found    at

Linux					    2012-08-05					  HPSA(4)

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