My group has requirement to run three, possibly
four, instances of Oracle (8.1.7, most likely) on a UNIX server
(AIX, if that matters). We are considering separate instances
because the software comes from three different vendors.
The fourth database will be ours and may be able to run on one of
the other three instances.
For determining the size of the server we are using the following
guidelines:
disk space = amount needed for the o/s (including virtual memory) +
Oracle software +
data files
physical memory = amount needed for the o/s +
total sizes of the SGA for all instances
number of processors = at least two
processor speed = somewhere in the middle range
We are assuming that the processors do not have to be blindingly fast for
a database server. We are also assuming that the number of processors
is more important than their speed.
So my questions are:
1. Are we on the right track with the physical memory calculation?
2. Should we figure in an additional amount of memory for each dedicated
server process,
assuming that we will not be using MTS?
3. What criteria should we use to determine number of processors?
4. Any other comments about our calculations and assumptions?
Thanks,
Peter Schauss
Northrop Grumman Corporation
516-346-3148
[EMAIL PROTECTED]
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Author: Schauss, Peter
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