
	     RAID Array 200 Software V2.1 for AXP Systems
			    Release Notes
                              
			      April 1995

    COPYRIGHT  Digital Equipment Corporation 1994. All Rights Reserved.
    COPYRIGHT  Mylex Corporation 1994. All rights reserved.
								   
    This software is proprietary to and embodies the confidential 
    technology of Mylex Corporation and Digital Equipment Corporation.  
    Possession, use, or copying of the software and media is authorized 
    only pursuant to a valid written license from Digital Equipment 
    Corporation or an authorized sublicensor. 
	   
    RESTRICTED RIGHTS:   Use, duplication, or disclosure by the  U.S
    Government is subject to restrictions  as set forth in subparagraph
    (c)(1)(ii) of DFARS 252.227-7013, or in FAR 52.227-19, or in 
    FAR 52.227-14 Alt. III, as applicable.  

                         

Note: The printed copy of the Release Notes provided with the kit
      may vary from this softcopy. The on disk copy is the most 
      recent.


INSTALLATION OF NT ON SWXCR BOOT PARTITIONS WITH MULTIPLE
LOGICAL DRIVES

There is a limitation in the Windows NT installation
mechanism which results in a failure to successfully
complete an installation to a SWXCR boot device when more
than one logical drive is defined on that device.  The
failure will occur when the system attempts to boot after
the first three floppy disks are loaded.   This limitation
can be overcome by one of two methods.  Method one is to
simply install an MS-DOS partition on the first logical
drive before beginning the Windows NT installation.  Method
two is to postpone creation of the second and subsequent
logical drives until after Windows NT is completely
installed on the first logical drive.


PARTITION RESTRICTIONS UNDER WINDOWS NT

The Windows NT boot partition size cannot exceed 2024 MB in
size.  Please note that any FAT partition created which is
over 2 GB in size will be inaccessible to MS-DOS.  Please
see Microsoft's Windows NT documentation for further
details.


PASSTHRU DEVICE SUPPORT ON THE SWXCR CONTROLLER

Passthru devices (ie., tape and CD-ROM) are not supported
under Windows NT v3.1.  Any number of passthru devices may
be used without restriction under Windows NT v3.5 and later.


SYSTEM SERVICE VERSION OF THE SWXCRMON UTILITY

There is provided an alternative version of the SWXCRMON
utility that operates as system service under Windows NT.
This version will start automatically whenever the NT system
is booted.  Otherwise, the system service monitor is
identical in functionality to the standard version provided
through the SETUP routine.  You may use each version
separately or together.
We welcome any comments you have regarding this utility;
please direct your thoughts to the address shown under the
feedback section of the General release notes.

The files for the system service monitor utility are located
on the NT release disk under the directory \serv_mon.  The
instructions for installation and removal of the utility are
contained in the file SWXCRSRV.REL located in that
directory.


UTILITY VERSION NUMBERS

The revision levels for the Windows NT utilities are:

     SWXCRMON       v1.35
     SWXCRMGR       v1.26


SWXCR DRIVER ON THE WINDOWS NT V3.5 CD-ROM 

The miniport driver for the SWXCR controller is included on the 
Windows NT distribution media for Windows NT 3.5. The version of the 
driver included on the v3.5 CD has the following problems:

a)  Level interrupts can not be used for any SWXCR controller as this 
    will cause the system to hang.

b) There is a bug while using tape devices to backup data on any 
   Logical RAID Drive while there is activity to the same or other 
   Logical RAID Drives which will cause the system to panic and crash.

The above problems have been fixed and a new version of the SWXCR driver 
is included on this floppy in the root directory. To load and use this new 
driver simply copy the file DAC960NT.sys from the floppy to the 
Winnt35\system32\drivers directory of your system. This can only be done 
after installing the operating system and the controller using the driver on 
the distribution CD.


USE OF DISK ADMINISTRATOR IN WINDOWS NT 3.5

There is a problem in the Windows NT 3.5 operating system that may be 
seen while using the SWXCR Monitor or SWXCR Manager in conjuction with 
the Disk Administrator utility. Using the above utilities together may 
cause the system to crash.  Contact Microsoft support and say you want the 
fix for bug #25912, which is a new SCSIPORT.SYS file for Windows NT 3.5,  
to correct this problem.   


HELP FILE IN THE SWXCRMGR

The 'Help file...' option under the Help menu of the SWXCR Manager has 
    not been enabled.  Windows NT default help will be displayed.


WINDOWS NT RELEASE DISK V2.1 FILE LIST

dac960nt.sys
mscomstf.dll
mscuistf.dll
msdetstf.dll
msinsstf.dll
msshlstf.dll
msuilstf.dll
oemsetup.inf
release.txt
setup.exe
sw31mgr.exe
sw31mon.exe
sw_scsi
swxcr.inf
swxcrmgr.exe
swxcrmon.exe
txtsetup.oem
upgrade.txt

a:\nt31

dac960nt.sys
oemsetup.inf

a:\serv_mon

messages.dll
swxcrsrv.exe
swxcrsrv.rel
xcrsrvc.exe

