Release Notes  PN 40001953_D 80006820_D

	 EtherLite(R)/SCSI Terminal Server(TM) Module Driver
				R5.005

	 HP-UX versions 10.01, 10.10, 10.16, 10.20 and 11.00

		    Software Driver P/N 40001953_D
		    Software Driver P/N 80006820_D
			Source Code 81000107_D
		     Release Notes P/N 93000338_D


			    April 10, 2000

INTRODUCTION

Digi International SCSI Terminal Server(TM) and Etherlite(R) module 
Driver Software Package for HP-UX machines.

This directory contains the essential driver and support software
for the STS/ELS driver.

Drivers are provided for:

 uniprocessor and multi-processor c720 based systems running 
 HP-UX 10.01, 10.10, 10.16, 10.20, and 11.00 (64bit systems support ELS only)

 uniprocessor scsi1 based systems running HP-UX 10.01, 10.10, and 10.20
 multiprocessor scsi1 based systems are currently not supported.

 Refer to the sts.7 man page for more information.

SUPPORTED PRODUCTS

    This is the list of units the driver will work with. Some of these
    units may be legacy units. Etherlite units are EL-2, EL-8, EL-16,
    EL-32, EM-8, EM-16, EL-160, and EL-162.  SCSI-based units are
    ST-1000, ST-1002, ST-1003, ST-1008, ST-1016, ST-1032, ST-1400,
    ST-1600, ST-1610, ST-1616, ST-1620, ST-1622, ST-1800, ST-2001, and
    SX-4032. See KNOWN LIMITATIONS below concerning support of SCSI-based
    units.

ENHANCEMENTS 

    This release adds support for persistent sessions for Etherlite(R)
    units. (Persistent sessions survive network and power outages on ELS
    units.) Persistent sessions can be elected on a unit by unit basis
    by adding the word persistent after the IP address for each unit
    in the els.conf file, or by adding the -p flag as the first option
    to the cdetherd command.

    Also, you can have cdetherd logging sent to syslog by adding the
    word syslog after the IP address. Use a space if you specify more
    than one option.

BUG FIXES

    This version fixes a bug in R5.004 on 64 bit uniprocessor 11.00
    systems saving and restoring 64bit interrupt values.

KNOWN LIMITATIONS

    Multiprocessor scsi1 based systems are currently not supported.

    64 bit systems do not support SCSI-based units.

    ********************* W A R N I N G *****************************
    Note that persistent sessions represent a security risk in that
    root sessions may not be hung up on loss of carrier if the unit is
    offline when carrier is lost.
    ********************* W A R N I N G *****************************

HISTORY

    R5.004

     Adds support for EtherLite(R) units on 64bit c720 based HP-UX
     11.00 systems.

     HP-UX 11.00 32bit systems have the option of installing as a DLKM
     (Dynamically Loaded Kernel Module) or as a static module.  DLKM
     is the recommended method, but not all systems will allow DLKM.
     Those systems that encounter problems when configured as a DLKM
     should choose the static module option during install.

     Implemented a workaround to allocate an additional 6 CT packets
     and print a message to the console that additional packets were
     allocated rather than panicing.  Each set of 6 packets allocated
     will use roughly 24k of kernel memory. 

     Fixed a CT packet memory leak and an object file error in loading
     kernel modules.

    R5.003

     Addeds support for 32bit c720 based HP-UX 11.00 systems.  The
     maximum number of EtherLite(R) units per host increased from 32
     units to 1024 units.

    R5.002

     Fix a bug with scsi1 based gettys on 10.20. Fix a bug with
     multiple scsi1 busses on 10.20.  Problems with input on
     Etherlite(R) units were also corrected.

     The Install and Remove proceedure was reworked to reduce space
     requirements in the /stand directory.

    R5.001

     Fixed a bug to correct problems introduced by increasing
     EtherLite(R) support to 32 units.

    R5.000

     This release combines the various HP-UX driver packages. Object
     modules for c720 and scsi1 based systems are now included
     together in each release and are usable on both 9000/700 and
     9000/800 series machines.

     The c720 objects included in this driver passed testing with STS
     and ELS modules on both multi-processor and uniprocessor machines
     and the scsi1 objects passed testing with ELS modules on both
     multi-processor and uniprocessor machines.

     However, STS modules are not currently usable with the scsi1
     objects on a multi-processor machine for lack of a scsi1 card for
     the multi-processor testing machine.  This is intended to be
     addressed in the next release of this driver and all
     multi-processor machines should use the c720 objects in the
     meantime.