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Conference csc32::consolemanager

Title:POLYCENTER Console Manager
Notice:Kits, Scans, Docs on CSC32:: as PCM$KITS:,PCM$DOCS:, PCM$SCANS:
Moderator:CSC32::BUTTERWORTH
Created:Thu Aug 06 1992
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1541
Total number of notes:6564

1172.0. "Cluster PCM Alphastations" by 58633::FERRO (Rick Ferro) Mon Jan 29 1996 17:55

    Hello Dan,
    
    On node 1049 I asked about clustering PCM stations in order to have a
    hot standby. We have taken your advice about SCSI clusters and having a
    separate box (BA350) with the shared and quorum disks in it. 
    
    I posed the question before (maybe a didn't understand the answer)about
    what would happen to the event files opened by the primary PCM when it 
    goes down ? Will the secondary be able to open the same files ? Or are 
    the event files for each PCM station unique and can only be written to 
    by the station that created them ?
    
    I believe it would be convenient to have the same files opened so the
    operators do not have to look at different files for each system
    (cluster member). 
    
    Otherwise the only advantages to have a clustered config, as opposed to
    two separate stations, would be from the point of view that we use only 
    one system disk (savings). I can't think of any other, can you ?
    
    Regards
T.RTitleUserPersonal
Name
DateLines
1172.160591::ELLISSAre you all sitting too comfybold square on your botty? - Then we'll beginTue Feb 06 1996 20:1810
Hi,

I would say that the only problem is that you can't have PCM running
concurrently on both systems as they can't both open the same files. This would
then require some form of monitoring of the primary PCM system from the
Secondary PCM system.

If that is achieved, then it's like closing down, and starting again PCM.

SHaun