Manual Pages for UNIX Operating System command usage for man adp

Devices                                                   adp(7D)



NAME
     adp - Low-level module  for  controllers  based  on  Adaptec
     AIC-7870P and AIC-7880P SCSI chips

DESCRIPTION
     The adp module provides low-level interface routines between
     the  common  disk/tape  I/O  system and SCSI (Small Computer
     System Interface) controllers based on the Adaptec AIC-7870P
     and  AIC-7880P  SCSI  chips.  These  controllers include the
     Adaptec AHA-2940,  AHA-2940W,  AHA-2940U,  AHA-2940UW,  AHA-
     3940,  and  AHA-3940W, as well as motherboards with embedded
     AIC-7870P and AIC-7880P SCSI chips.


     Supported devices are AIC-7850, AIC-7860, AIC-7870, AIC-7880
     and AIC-7895.


     The adp module can be configured for disk and streaming tape
     support  for  one or more host adapter boards, each of which
     must  be  the  sole  initiator  on  a   SCSI   bus.    Auto-
     configuration  code  determines if the adapter is present at
     the  configured  address  and  what  types  of  devices  are
     attached to the adapter.

PRECONFIGURE
     The Plug N Play SCAM Support option is not supported.

  Known Problems and Limitations
         o    To use the  AHA-3940  or  AHA-3940W  adapters,  the
              motherboard  must have a BIOS that supports the DEC
              PCI-to-PCI Bridge chip on the host bus adapter.

         o    User-level programs have exhibited problems on some
              PCI  systems  with an Adaptec AHA-2940 or AHA-2940W
              card and certain  motherboards.  If  problems  with
              user-level  programs  occur,  use the BIOS setup to
              disable write-back CPU caching (or all  caching  if
              there  is  no  control over the caching algorithm).
              The affected motherboards are:
       - PCI motherboards with a 60-MHz Pentium  chip,  with  PCI
       chipset  numbers S82433LX Z852 and S82434LX Z850. The part
       numbers of the Intel  motherboards  are  AA616393-007  and
       AA615988-009.
       - PCI motherboards with a 90-MHz Pentium  chip,  with  PCI
       chipset numbers S82433NX Z895, S82434NX Z895, and S82434NX
       Z896. The part number of the Intel motherboard is  541286-
       005. (Some Gateway 2000 systems use this motherboard.)
       - AA-619772-002 motherboard with 82433LX Z852 and  82434LX
       Z882  chips  causes  random memory inconsistencies. Return
       the motherboard to the vendor for a replacement.




SunOS 5.11          Last change: 10 Oct 2000                    1






Devices                                                   adp(7D)



         o    If the AHA-2940 SCSI adapter does not recognize the
              Quantum Empire 1080S, HP 3323 SE or other SCSI disk
              drive, reduce the Synchronous Transfer rate on  the
              Adaptec controller to 8 Mbps.

         o    The AHA-3940 has been certified by Adaptec to  work
              on  specific  systems;  however,  some  testing has
              shown that the Solaris operating environment  works
              properly  in  some of those systems and not in oth-
              ers.

CONFIGURATION
     Use the Adaptec configuration utility to perform the follow-
     ing steps:

         o    Configure each SCSI device to have  a  unique  SCSI
              ID, then using the adapter's Advanced Configuration
              Options setup menu, set the Plug N Play  SCAM  Sup-
              port option to Disabled.

         o    If there is more than one controller (or an  embed-
              ded controller), try to use one IRQ per controller.

         o    Enable bus mastering for the slots with  your  host
              bus adapters, when the choice is given.

         o    For older disk drives, tape drives, and most CD-ROM
              devices,  make  sure the maximum SCSI data transfer
              speed is set to 5.0 Mbps.

         o    Enable support for disks larger  than  1  Gbyte  if
              applicable.

FILES
     /kernel/drv/adp.conf    Configuration  file  for   the   adp
                             driver;    there    are   no   user-
                             configurable options in this file


ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:













SunOS 5.11          Last change: 10 Oct 2000                    2






Devices                                                   adp(7D)



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Architecture                | x86                         |
    |_____________________________|_____________________________|


SEE ALSO
     attributes(5)


     Solaris (Intel Platform Edition) Hardware Compatibility List

NOTES
     Throughout the release, support of additional devices may be
     added.  See  the  Solaris  (Intel Platform Edition) Hardware
     Compatibility List for additional information.


     The adp driver supports Logical Unit Number  ("LUN")  values
     of  0  through  15.  This  range exceeds the standard SCSI-2
     requirements which call for support of LUNs 0 through 7.

































SunOS 5.11          Last change: 10 Oct 2000                    3