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Conference azur::mcc

Title:DECmcc user notes file. Does not replace IPMT.
Notice:Use IPMT for problems. Newsletter location in note 6187
Moderator:TAEC::BEROUD
Created:Mon Aug 21 1989
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6497
Total number of notes:27359

252.0. "DECmcc V1 Cluster Startup" by COOKIE::KITTELL (Richard - Architected Info Mgmt) Sun Aug 12 1990 12:51

Is it necessary/wise to have all nodes in a cluster execute all the MCC 
startup files? MCC_STARTUP_{DIR,BMS,TK,BMS2}?

The DIR startup defines the logicals, and obviously needs to be done
everywhere. But the others do things like define an alarm and test it.
Isn't there a chance that could collide if two nodes were doing it at the
same time?
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252.1GOSTE::CALLANDERTue Aug 14 1990 15:3413
    
    We know one thing was NOT clear about the last set of installation
    notes, "what do you need to install". Since installing the BMS kit
    includes all of the DIR functions, you don't need to install it
    on top of a DIR installation. Therefore mcc_startup should be run
    only once. For those people requiring/desiring the toolkit (TK)
    and the rest of the BMS kit you are right, the startup will be
    run twice, once per kit. This isn't easy to get around.
    
    You shouldn't have collision problems on clusters since we use locks.
    And the procedures clean up after them selves. If you do experience
    a problem please enter a note or a qar on it.