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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 Configuration Utility (either the GUI or the  com-
            mand-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  logi-
            cal 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 Config-
            uration   Utility,   SNMP   storage  agents,  and  so  on.   See
            cciss_vol_status at for some examples.