Cdm probe - shows wrong Physical Memory on AIX and Linux Servers

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Cdm probe shows different Physical Memory on AIX and Linux Servers

Environment

Release:  Any UIM Version
Component: Any cdm probe version after 5.01

Cause

For this metric, the buffer cache will be subtracted from physical memory value if the key mem_buffer_used is set as no.  This is the default value.

This support is added for Linux, AIX, Solaris and HPUX platforms.

Resolution

To include the buffer and cache memory for physical memory calculation (by not subtracting it in the calculation), set the value of mem_buffer_used key to yes in the Raw Configuration for the cdm probe.

1. Open the cdm Raw Configuration.
2. Expand the Setup section of the configuration
3. Edit the mem_buffer_used key and change it to yes
4. Save the configuration
5. Deactivate/Activate the probe

Additional Information

The following formulas for QOS_MEMORY_PHYSICAL are used:

• When mem_buffer_used = no

QOS_MEMORY_PHYSICAL (Physical Memory Used MB) = (MemTotal - MemFree - Buffers - Cached) /1024

• When mem_buffer_used = yes

QOS_MEMORY_PHYSICAL (Physical Memory Used MB) = (MemTotal - MemFree) /1024