Man Pages

hpsa(4) - phpMan hpsa(4) - phpMan

Command: man perldoc info search(apropos)  


HPSA(4)                                                                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 con-
              troller even if it is not explicitly known to the driver.  This allows newer hardware to work with older
              drivers.  Typically this is used for example to allow installation of OSes from media which 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 driver.  These older boards have not been tested and are not supported with hpsa
              and cciss 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


CONFIGURATION DETAILS
       To configure HP Smart Array controllers, use the HP Array Configuration Utiltiy (either hpacuxe or hpacucli) 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), tape drives via the SCSI tape driver (st), and the
       RAID controller vi the SCSI generic driver (sg), 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  the  host  "rescan"  attribute  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 this is triggered automatically by HP's Array Configuration Utility (either the  GUI
              or  command  line  variety) so for logical drive changes, the user should not normally have to use this.
              It may be useful when hot plugging devices like tape drives, or entire storage boxes containing pre-con-
              figured logical drives.


       /sys/class/scsi_host/host*/firmware_revision The "firmware_revision" attribute contains the firmware version of
              the Smart Array.  For example:
                   root@host:/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 contains a 32 hex-digit unique ID for each logical drive
              For example:

                      root@host:/sys/class/scsi_disk/4:0:0:0/device# cat unique_id
                      600508B1001044395355323037570F77

       /sys/class/scsi_disk/c:b:t:l/device/raid_level contains the RAID level of each logical drive.
              For example:
                      root@host:/sys/class/scsi_disk/4:0:0:0/device# cat raid_level
                      RAID 0

       /sys/class/scsi_disk/c:b:t:l/device/lunid (where c:b:t:l are the controller, bus, target and lun of the device)
              contains 16 hex-digit (8 byte) LUN ID by which a logical drive or physical device can be addressed.
              For example:
                      root@host:/sys/class/scsi_disk/4:0:0:0/device# cat lunid
                      0x0000004000000000

SUPPORTED IOCTLS
       For  compatibility with applications written for the cciss driver, many, but not all of the ioctls supported by
       the cciss driver are also supported by the hpsa driver.  The data structures used by  these  are  described  in
       include/linux/cciss_ioctl.h

       CCISS_DEREGDISK CCISS_REGNEWDISK CCISS_REGNEWD

              The  above  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,  etc.   See
              cciss_vol_status at http://cciss.sf.net for some examples.



SEE ALSO
       cciss(4),  hpacucli(8),  sd(4), st(4), hpacuxe(8), cciss_vol_status(8), http://cciss.sf.net, and from the linux
       kernel source, Documentation/scsi/hpsa.txt and Documentation/ABI/testing/sysfs-bus-pci-devices-cciss

AUTHORS
       Don Brace, Steve Cameron, Tom Lawler, Mike Miller, Scott Teel and probably some other people.





                                     hpsa                              HPSA(4)