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HP OpenVMS Systemsask the wizard |
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The Question is: How do I change the default vaule for "login" from 64 to 500? The Answer is :
Add the following line in SYSTARTUP_VMS.COM:
$ STARTUP$INTERACTIVE_LOGINS == 500
To change the value on a running OpenVMS system, use the command:
$ SET LOGIN/INTERACTIVE=500
Add the following line in MODPARAMS.DAT:
MIN_IJOBLIM = 500
You will also need to examine the BALSETCNT and MAXPROCESSCNT system
parameter values to ensure sufficient process slots are available for
the additional logins now permitted. Add the following lines into
MODPARAMS.DAT if alterations are required:
MIN_BALSETCNT = nnn
MIN_MAXPROCESSCNT = nnn + mmm
Adjusting the RJOBLIM setting (MIN_ROBLIM in MODPARAMS.DAT) may also
be of interest, as this value controls the total number of network
logins permitted.
With all OpenVMS VAX versions and OpenVMS Alpha versions prior to V7.0,
you may need to decrease the VIRTUALPAGECNT setting to permit the
(larger) page table data structures that will result from an increase
in the maximum number of process -- these data structures must fit into
the available system space. With the 64-bit addressing changes available
in OpenVMS Alpha V7.0 and later (the page tables have been moved out of
their traditional location in system space and into the newly created
and dedicated page table space), having large numbers of processes --
each with large a virtual address space -- is far easier to configure.
Then run AUTOGEN with FEEDBACK and SETPARAMS or REBOOT to generate and
save the new system parameter settings, and then reboot the system to
activate the saved parameter settings.
Of course, you will also need to consider other system parameter settings
and other issues related to available hardware resources as a result of
increasing the numbers of processes, issues such as the available physical
memory configured in the system. The performance management manual in
the OpenVMS documentation set will be of interest.
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