HPSA(4)                   (2017-09-15)                    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

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              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 Configuration 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 plug-
               ging devices like tape drives, or entire storage 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.

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               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: 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

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               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 for some examples.

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

          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/.

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