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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 auto‐
              matically 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 plugging 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.

              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/testing/sysfs-bus-pci-devices-cciss in the Linux kernel source tree

Linux                                                                          2021-03-22                                                                        HPSA(4)