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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

1349.0. "Memory Requirements Alpha PCM 1.6-201" by CSC32::MEREOS () Thu Aug 01 1996 10:01

    
    Customer is running PCM 1.6-201 on Alpha1000 128MB 
    monitoring 80 systems. Expect to be running 12 C3
    displays from the Alpha to different displays.  
    
    We have done the BYTLM, PRCLM, PGFLQUO tuning, and removed all extraneous
    software (Pathpig, etc), and as we add systems we are seeing 
    a pretty significant slowdown. 
    
    They are shadowing the logfile disk (RZ29). VMS 6.2
    
    
    My questions are:
    
    (a) what is a good rule of thumb for memory required?
        I think they need more, but "buy more memory" typically 
        needs a justification.  Looking for 64MB for VMS +
        "n" MB for each system monitored.
    
    (b) would not shadowing the logfile disk help?
    
    Sandra Mereos
    CSC Internals & Drivers
    
T.RTitleUserPersonal
Name
DateLines
1349.1SNOFS1::ELLISSAre you all sitting too comfybold square on your botty? - Then we'll beginThu Aug 01 1996 19:5712
Hi,

read note 7.1 for memory configuration guidelines

For logging of data, shadowing will not help as shadowing actually slows down
write time (Speeds up Read time), as it has to write to two spindles every
time, whereas it can choose which spindle to read from. I would recommend
using either a combination of RAID0 & 1, which gives you maximum protection
and throughput (Parallel writes) as well as easy management, or distribute
the logging of various systems across different spindles - manual, but effective.

Shaun