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



NAME
       hpsa - HP Smart Array SCSI driver

SYNOPSIS
       modprobe hpsa [ hpsa_allow_any=1 ]

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

   Options
       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.

FILES
   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
       /sys/class/scsi_host/host*/rescan
              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 preconfigured logical drives.

       /sys/class/scsi_host/host*/firmware_revision
              This attribute contains the firmware version of the Smart Array.

              For example:

                  # cd /sys/class/scsi_host/host4
                  # cat firmware_revision
                  7.14

   HPSA-specific disk attribute files in /sys
       /sys/class/scsi_disk/c:b:t:l/device/unique_id
              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
                  600508B1001044395355323037570F77

       /sys/class/scsi_disk/c:b:t:l/device/raid_level
              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

       /sys/class/scsi_disk/c:b:t:l/device/lunid
              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
                  0x0000004000000000

   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
       include/linux/cciss_ioctl.h.

       CCISS_DEREGDISK, CCISS_REGNEWDISK, CCISS_REGNEWD
              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.

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

       CCISS_GETDRIVVER
              Returns driver version in three bytes encoded as:

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

       CCISS_PASSTHRU, CCISS_BIG_PASSTHRU
              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,
              and so on.  See cciss_vol_status at ⟨http://cciss.sf.net⟩ for some examples.

SEE ALSO
       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

COLOPHON
       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 http://www.kernel.org/doc/man-pages/.



Linux                                       2012-08-05                                    HPSA(4)