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Conference vaxaxp::vmsnotes

Title:	VAX and Alpha VMS
Notice:	This is a new VMSnotes, please read note 2.1
Moderator:	VAXAXP::BERNARDO

Created:	Wed Jan 22 1997
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	703
Total number of notes:	3722

401.0. "dump to PAGEFILE.SYS on DOSD?" by CSC32::P_MURPHY (Patti EICS/CSC/CS) Mon Mar 31 1997 01:08

    I have a customer that would like to dump to a PAGEFILE.SYS on a
    DOSD (dump off system disk) disk.  He has a PAGEFILE.SYS created 
    for each of his nodes in dosd_disk:[SYSn.SYSEXE] with adequate
    size to accomodate a full dump.  But he is unable to get it to work.
    From everything I've read, when using DOSD, the filename MUST BE
    SYSDUMP.DMP....therefore it would not use 'PAGEFILE.SYS'.
    
    Is this correct?  and  Are there any plans in the future of being
    able to use PAGEFILE.SYS with DOSD.
    
    Customer has an Alpha Jenson running 7.1.
    
    Thanks

T.R Title User Personal
Name Date Lines

401.1 Not possible MILORD::BISHOP The punishment that brought us peace was upon Him Mon Mar 31 1997 08:59 20

T.R	Title	User	Personal Name	Date	Lines
401.1	Not possible	MILORD::BISHOP	The punishment that brought us peace was upon Him	`Mon Mar 31 1997 08:59`	20
	No it's not possible. I'd like it to be, and it's on a list of things I'd like to do. But there's more to it than just trying both filenames and using PAGEFILE.SYS if SYSDUMP.DMP isn't there. SYSGEN has to be taught that there might be a dump in there and to do the right thing when an INSTALL command is done. SDA has to be able to RELEASE the dump space. etc. etc. And to forestall someone else suggesting this... don't consider doing a SET FILE/ENTER to make the file be called SYSDUMP.DMP as well as PAGEFILE.SYS. The dump is going to get lost as soon as you boot your system and install that file as a pagefile. While it's possible to organize your startup to save the dump first, that's going to fail often enough that you'll lose dumps and get the customer p.o.'d. Or have the system hung because the pagefile hasn't been installed. etc. And if you're going to do that, you'll need somewhere to copy the dump to automatically at boot time, guaranteed to have enough space. Why not just create a dump file there in the first place... - Richard.

    No it's not possible. I'd like it to be, and it's on a list of things
    I'd like to do. But there's more to it than just trying both filenames
    and using PAGEFILE.SYS if SYSDUMP.DMP isn't there. SYSGEN has to be 
    taught that there might be a dump in there and to do the right thing
    when an INSTALL command is done. SDA has to be able to RELEASE the dump
    space. etc. etc.
    
    And to forestall someone else suggesting this... don't consider doing a
    SET FILE/ENTER to make the file be called SYSDUMP.DMP as well as
    PAGEFILE.SYS. The dump is going to get lost as soon as you boot your
    system and install that file as a pagefile. While it's possible to
    organize your startup to save the dump first, that's going to fail
    often enough that you'll lose dumps and get the customer p.o.'d. Or
    have the system hung because the pagefile hasn't been installed. etc.
    
    And if you're going to do that, you'll need somewhere to copy the dump
    to automatically at boot time, guaranteed to have enough space. Why not
    just create a dump file there in the first place...
    
    - Richard.