[Simh] VMS paging

David B Sneddon dbsneddon at bigpond.com
Sat Jan 20 23:44:39 EST 2007


Bob Supnik was overheard to say:
> The message you describe should not be occuring in normal 
> startup.  The normal startup sequence is very simple:
> 
>  >>>b dua0
> (BOOT/R5:0 DUA0
> 
> 
> 
>    2..
> -DUA0
>    1..0..
> 
> 
> %SYSBOOT-I-SYSBOOT Mapping the SYSDUMP.DMP on the System Disk
> %SYSBOOT-I-SYSBOOT SYSDUMP.DMP on System Disk successfully mapped
> %SYSBOOT-I-SYSBOOT Mapping PAGEFILE.SYS on the System Disk
>    YSBOOT-I-SYSBOOT SAVEDUMP parameter not set to protect the PAGEFILE.SYS
>     OpenVMS (TM) VAX Version V7.2     Major version id = 1 Minor version id = 0
> 
> PLEASE ENTER DATE AND TIME (DD-MMM-YYYY  HH:MM)  20-JAN-2007 21:18
> $!  Copyright (c) 1998 Digital Equipment Corporation.  All rights reserved.
> 
> and then off into the STARTUP.COM file.
> 
> Are you shutting down VMS correctly?  VMS, like Windows, has to be 
> shutdown, you can't just simply stop the simulator.  (The command is 
> simply RUN SHUTDOWN from the system account.)  If you don't,  on next 
> boot you'll get the VMS equivalent of fsck or CHKDSK, which <will> 
> read every piece of the disk to try to verify or restore the 
> integrity of the filesystem.
> 
> /Bob Supnik

The other option is to make sure you do the mounting of the disks
at startup with the /NOREBUILD qualifier then do your disk cleanup
overnight via a batch job.

Regards,
Dave
-- 
David B Sneddon (dbs)  VMS Systems Programmer  dbsneddon at bigpond.com
Sneddo's quick guide ...     http://www.users.bigpond.com/dbsneddon/
DBS freeware ... http://www.users.bigpond.com/dbsneddon/software.htm



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