what is N +l , N2 and N3

Posted on 2006-03-31
Last Modified: 2010-05-18

Pelase kindly assist what is N +l , N2 and N3 ? are these nodes? in context to redundancy.

so if it's N3 there are 3 redudant system in place?

Question by:DexterJones
    LVL 51

    Expert Comment

    could you please be a bit more specific what you're talking about?

    Author Comment


    I just read it on some poster that their infastructure has N + l ,N2 and N3.

    LVL 22

    Accepted Solution

    It sounds as if for a requirement of N systems they have N+3. This redundancy criteria becomes more cost effective for larger N.

    Personally I suspect that the statement is a classic 'snake-oil' one. It is an effort to seem impressive with lots of bits of information that the customer really has no need to know. What the customer really wants is for the system to work, and have maximum uptime.


    Author Comment


    noted, do you mean my N+3 is that they have 3 fail over systems? if one fails there are two more to handle?

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