OpenVMS VAXDISM01_071 DISMOUNT for OpenVMS VAX V7.1 ECO Summary

TITLE: OpenVMS VAXDISM01_071 DISMOUNT for OpenVMS VAX V7.1 ECO Summary
 
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) Compaq Computer Corporation 1998.  All rights reserved.


NOTE:  The documentation for this kit calls out a dependency on the           
       VAXMOUN04_071 remedial kit.  This MOUNT kit is not currently          
       available but will be released at a future date      


Modification Date:  20-NOV-1998 
Modification Type:  New ECO kit

OP/SYS:     OpenVMS VAX

COMPONENT:  DISMOUNT

SOURCE:     Compaq Computer Corporation

ECO INFORMATION:

     ECO Kit Name:  VAXDISM01_071
     ECO Kits Superseded by This ECO Kit:  None
     ECO Kit Approximate Size:  126 Blocks

     Kit Applies To:  OpenVMS VAX V7.1
     System/Cluster Reboot Necessary:  No

     Installation Rating:   INSTALL_3
                            3 - To be installed on all systems running
                                the listed versions of OpenVMS which
                                are experiencing the problems described.

     Kit Dependencies:

       The following remedial kit(s) must be installed BEFORE
       installation of this kit:

         None

       In order to receive all the corrections listed in this
       kit, the following remedial kits should also be installed:

         VAXSYSA02_071
         VAXBACK03_071
         VAXMOUN04_071
         VAXINIT01_071
         VAXMTAA01_071


ECO KIT SUMMARY:

An ECO kit exists for DISMOUNT on OpenVMS VAX V7.1.  This kit 
addresses the following problems: 

Problems addressed in VAXDISM01_071:

  o  A possible system crash occurs during Host Based  RAID  Unbinds     
     with  MME code enabled.  A mailbox read synchronization problem     
     causes the crash.                                                   
                                                                     
     This problem only occurs when a host-based RAID UNBIND  command     
     is done while an MME-based application is running.                  
                                                                     
     This problem can occur in several different code areas  of  the     
     operating system.  In order to eliminate all known instances of     
     this  problem,  the   following   remedial   kits   (or   their     
     supersedants) will also need to be installed:                       
                                                                     
     VAXSYSA02_071                                                       
     VAXBACK03_071                                                       
     VAXMOUN04_071                                                       
     VAXINIT01_071                                                       
     VAXMTAA01_071                                                       
                                                                     
  o  A process using MME could potentially "miss" the VOL1 label  on     
     a  tape.  Also, a process could "hang" trying to send a message     
     to the MME process.                                                 
  

INSTALLATION NOTES:

The system does not need to be rebooted after this kit is installed.
However, if the system is a member of a VMScluster, the other cluster
members should be rebooted or this kit should be installed on each 
system in order to make use of the new image(s). 

Files on this server are as follows:

»vaxdism01_071.README
»vaxdism01_071.CHKSUM
»vaxdism01_071.CVRLET_TXT
»vaxdism01_071.a-dcx_vaxexe