Monitoring Messaging Gateway memory usage via SNMP
Article ID: 213277
Updated On:
Products
Issue/Introduction
The Messaging Gateway (SMG) system provides real time access to system metrics including memory utilization via the monitor system CLI command but it may be more convenient to monitor memory utilization via the SMG SNMP interface.
Environment
Release : 10.7.0
Component :
Resolution
SMG monitor command output
smg [10.7.4-13]> monitor system
system: %user %sys %wait memt memu memf
5.40% 32.60% 0.10% 3861608 2265388 1596220
SMG "monitor system" values and coorsponding SNMP OIDs
| monitor system value | SNMP OID | |
| Total physical memory (RAM) | memt | 1.3.6.1.2.1.25.2.3.1.5.1 |
| Memory in use | memu | 1.3.6.1.2.1.25.2.3.1.6.1 |
| Free memory | memf | 1.3.6.1.2.1.25.2.3.1.5.1 - 1.3.6.1.2.1.25.2.3.1.6.1 |
Note: Due to changes in how memory is managed in the linux kernel, the kernel /proc/meminfo and linux `free` command includes an "available" value to represent the total amount of memory available for process creation. This value is not currently available via SNMP but is approximately equal to the free memory plus the kernel memory buffers plus the cached memory. In terms of the SNMP OIDs this works out to:
Available memory: 1.3.6.1.2.1.25.2.3.1.5.1 - 1.3.6.1.2.1.25.2.3.1.6.1 + 1.3.6.1.2.1.25.2.3.1.6.6 + 1.3.6.1.2.1.25.2.3.1.6.7
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