Re: Why free space not shown while doing snmpwalk to HOST-RESOURCES-MIB::hrStorage

On Thu, 2005-12-08 at 10:03 +0000, John Joseph wrote:

>  I got the parameters like "hrStorageSize”,“hrStorageUsed” 
>  But I did not see any parameter showing free space on storage 
>  I would like to know why this result of free space is not shown

Because it's not necessary.
If you know how big a particular storage area is,
and how much is currently being used, it's trivial
to determine how much space is left.

What is the point in defining yet another MIB object,
which requires additional effort to implement and support,
and would generate additional (unnecessary) network traffic?

The only advantage is that it saves you from making a
simple subtraction.   Don't be so lazy!  :-)


It was one of the very early SNMP design principles,
to try and avoid modelling redundant information.
That's what you're seeing here.

Dave


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