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	<META NAME="author" CONTENT="Michael Temkin">
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	<META NAME="new" CONTENT="01-06-1999">
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<pre>
<center><b><font color=660066>
 OpenVMS VAXDRIV12_U2055 VAX V5.5-2 DUDRIVER ECO Summary
</font></b></center><p>
 
NOTE:  An OpenVMS saveset or PCSI installation file is stored
       on the Internet in a self-expanding compressed file.
       The name of the compressed file will be kit_name-dcx_vaxexe
       for OpenVMS VAX or kit_name-dcx_axpexe for OpenVMS Alpha.
 
       Once the file is copied to your system, it can be expanded
       by typing RUN compressed_file.  The resultant file will
       be the OpenVMS saveset or PCSI installation file which
       can be used to install the ECO.
 
Copyright (c) Digital Equipment Corporation 1997.  All rights reserved. 

OP/SYS:     OpenVMS VAX

COMPONENT:  DUDRIVER
            TUDRIVER

SOURCE:     Digital Equipment Corporation

ECO INFORMATION:

     ECO Kit Name:  VAXDRIV12_U2055
     ECO Kits Superseded by This ECO Kit:  VAXDRIV11_U2055
                                           VAXDRIV04_070 (Supersedes the
                                             OpenVMS VAX V5.5-2x section
                                             of this kit *ONLY*)
                                           VAXDRIV02_070
     ECO Kit Approximate Size:  162 Blocks
     Kit Applies To:  OpenVMS VAX V5.5-2, V5.5-2H4, and V5.5-2HF 
     System/Cluster Reboot Necessary:  Yes

     Installation Rating:  3 - To be installed on all systems running
                               the listed versions of OpenVMS which
                               are experiencing the problems described.

     NOTE:  In order to receive the full fixes listed in this kit,
            the following remedial kits also need to be installed:

                 VAXSHAD09_U2055 on OpenVMS VAX V5.5-2 systems 


NOTE: The DUDRIVER.EXE image contained in this kit for OpenVMS
      V5.5-2 is more current than the DUDRIVER.EXE images contained 
      in the VAXSHAD09_U2055 ECO kit.


ECO KIT SUMMARY:

An ECO kit exists for DUDRIVER/TUDRIVER on OpenVMS VAX V5.5-2, V5.5-2H4, 
and V5.5-2HF.  This kit addresses the following problems:


Problems addressed in the VAXDRIV12_U2055 Kit:

  o  DUDRIVER does not FLUSH the pending queue of SHADOWING, HBR and
     served  IOs when connection failure routines are entered.  This
     causes a system/cluster hang.


Problems addressed in the VAXDRIV11_U2055 Kit:

  o  These OpenVMS VAX V5.5-2 problem corrections were included in
     the multi-version VAXDRIV04_070 remedial kit.  They are now
     being issued as a V5.5-2 only remedial kit.

     There are no new problem corrections in this remedial kit.


Problems addressed in the VAXDRIV04_070 Kit:  

  o  A PGFIPLHI system crash may occur when the controller is rebooted.

  o  A problem exists with HSJ/HSD30, 40 and 50 controllers where,
     after an event that initiates Mount Verification, a packet 
     acknowledgment will fail to complete.  The controller will 
     report that it is making progress on the command, but will 
     never finish.  This causes all IO to the affected devices to 
     hang.  


Problems addressed in the VAXDRIV02_070 Kit: 

  o  A node may hang due to no quorum after losing its connection 
     to the quorum disk.

  o  DUDRIVER does not log IRP information.


INSTALLATION NOTES:

In order for the corrections in this kit to take effect, the system
must be rebooted.  If the system is a member of a VMScluster, the
entire cluster should be rebooted.
</PRE>
<hr><br>
<font color=660066 size=+1>This patch can be found at any of these sites:</font><p>
<a name=colorado>
<a href=http://ftp1.support.compaq.com/public/vms/vax/v5.5-2/vaxdriv12_u2055.README>Colorado Site</a><br>
<a name=georgia>
<a href=http://ftp11.support.compaq.com/public/vms/vax/v5.5-2/vaxdriv12_u2055.README>Georgia Site</a><br>
<a name=europe>
<a href=http://ftp.service.digital.co.uk/public/vms/vax/v5.5-2/vaxdriv12_u2055.README>European Site</a><p>
<hr><br>
<font color=660066 size=+1>Files on this server are as follows:</font><p>
<pre>
<a href=/public/vms/vax/v5.5-2hf/vaxdriv12_u2055.README>vaxdriv12_u2055.README</a>
<a href=/public/vms/vax/v5.5-2hf/vaxdriv12_u2055.CHKSUM>vaxdriv12_u2055.CHKSUM</a>
<a href=/public/vms/vax/v5.5-2hf/vaxdriv12_u2055.CVRLET_TXT>vaxdriv12_u2055.CVRLET_TXT</a>
<a href=/public/vms/vax/v5.5-2hf/vaxdriv12_u2055.a-dcx_vaxexe>vaxdriv12_u2055.a-dcx_vaxexe</a>
</pre>
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