This is a discussion on memory rule of thumb within the AIX Operating System forums, part of the Unix Operating Systems category; --> Hi, Is there any document of how much memory you need with aix 4.3.3 and an rs6k machine? This ...
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| Hi, Is there any document of how much memory you need with aix 4.3.3 and an rs6k machine? This of course in an enterprise environment. I heard someone say that for maximum performance there should be #cpu's x 2 GB mem = total mem. (so a 4-way should have 8GB memory...) Is this true end is there a sort of IBM advisory document or something? Hope you can help me out. Greetings, RB |
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| vandenbrink@syntel.nl (R][B) wrote in message news:<204c9bc5.0405100701.3b349c1d@posting.google. com>... > Hi, > > Is there any document of how much memory you need with aix 4.3.3 and > an rs6k machine? This of course in an enterprise environment. > I heard someone say that for maximum performance there should be > #cpu's x 2 GB mem = total mem. (so a 4-way should have 8GB memory...) > Is this true end is there a sort of IBM advisory document or > something? > > Hope you can help me out. > Greetings, > RB http://publib-b.boulder.ibm.com/Redb...4810.html?Open HTH Mark Taylor |
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| vandenbrink@syntel.nl (R][B) wrote in message news:<204c9bc5.0405100701.3b349c1d@posting.google. com>... > Hi, > > Is there any document of how much memory you need with aix 4.3.3 and > an rs6k machine? This of course in an enterprise environment. > I heard someone say that for maximum performance there should be > #cpu's x 2 GB mem = total mem. (so a 4-way should have 8GB memory...) > Is this true end is there a sort of IBM advisory document or > something? > > Hope you can help me out. > Greetings, > RB That method of calculating memory size is useless. Forget you ever learned it. The Redbook posted above is a good answer. The best answer is to look at database configuration, application configuration and the such and just add it up. There is no 'quick and dirty' method for computing memory requirements. You need to know what is going to be asked for by the apps and databases before you can plan it out. After a few years, you'll be able to get a feel for what is needed pretty easily - but this is through trial and error. BV |