bionic (4) hpsa.4.gz

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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 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

COLOPHON

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