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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 installation 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

       Since Linux 4.14, the following Smart Array boards are also supported:

           Smart Array 5300
           Smart Array 5312
           Smart Array 532
           Smart Array 5i
           Smart Array 6400
           Smart Array 6400 EM
           Smart Array 641
           Smart Array 642
           Smart Array 6i
           Smart Array E200
           Smart Array E200i
           Smart Array E200i
           Smart Array E200i
           Smart Array E200i
           Smart Array E500
           Smart Array P400
           Smart Array P400i
           Smart Array P600
           Smart Array P700m
           Smart Array P800

   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 Configu‐
              ration  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 storage boxes contain‐
              ing 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  in‐
       clude/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 res‐
              can 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/testing/sysfs-
       bus-pci-devices-cciss in the Linux kernel source tree

COLOPHON
       This page is part of release 5.10 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 https://www.kernel.org/doc/man-pages/.



Linux                                        2017-09-15                                      HPSA(4)