The MIB objects that are read to calculate the source of the CPU and memory utilization can be customized for an individual device model or set as the default for a given model type. This is only necessary if CA Spectrum is unable to identify a source for CPU and memory utilization, or if you prefer to use a different source.
Do one of the following to customize CPU and memory utilization:
Attribute redirection is the process of using well-known attributes as a pointer, or redirectors, to proprietary attributes. For example, the well-known attribute NRM_CPUUtilAttr (0x12e2d) on the AirespaceSw model type holds the attribute ID of the Airespace proprietary CPU attribute, agentCurrentCPUUtilization (0x4b605ae).
With attribute redirection, it is possible for generic code to reference unique attributes for each device model or model type. Additionally, attribute redirection lets you change the source attributes without having to restart the SpectroSERVER. By default, for most model types, attribute redirection is the first source type that is tested. Therefore, in most circumstances, you only have to modify the attributes that attribute redirection is using.
Before you make changes to the normalized CPU and memory intelligence, understand how CA Spectrum calculates CPU and memory utilization.
CA Spectrum does the following to calculate CPU and memory utilization:
This section contains information about the following topics: