System Health Monitoring
Run a System Baseline for Core Resources
106
Best Practice User Guide for the Catalyst 3850 and Catalyst 3650 Switch Series
Obtain Switch Memory Usage
Step 4 Use the show process memory command to display the state of memory usage on your switch.
To find memory usage due to the subprocesses and tasks operating under a specific process, use the show
process memory detailed command. To sort for high activity usage, use the show process memory
detailed sorted command.
Memory usage can be monitored on a per-switch basis in a stacked environment.
Monitor File Systems Usage
Step 5 At regular intervals, use the show file systems command to monitor the file systems within the switch
to ensure that there is always sufficient space available.
Unlike previous platforms, the switch writes crash files to a separate directory. For example, the show
file systems command output shows that the crashifo folder is populated. Compare the size of the folder
against the free space available.
The switch has different file systems that can be listed by using the show file systems command.
Note An (*) asterisk indicates the default file system. If the file system has a dash (-) or a zero (0) for the
Size(b) field, that indicates that the file system is not present or not recognized.
Step 6 Use the dir filesystem or the show filesystem command to list the files under a specific files system.
When you find crash files, it is important to immediately retrieve them to diagnose a system failure or
unexpected crash.
show process memory sorted
System memory : 3930840K total, 1487028K used, 2443812K free, 222004K kernel
reserved
Lowest(b) : 1915568076
PID Text Data Stack Heap RSS Total Process
5681 9988 269088 92 476 233060 584844 fed
10162 72268 34364 104 288 206548 343980 iosd
10158 24260 519732 88 10628 108612 662328 wcm
show file systems
File Systems:
Size(b) Free(b) Type Flags Prefixes
248354816 148799488 disk rw crashinfo: crashinfo-1:
248512512 178782208 disk rw crashinfo-2: stby-crashinfo:
* 1621966848 346673152 disk rw flash: flash-1:
1622147072 350224384 disk rw flash-2: stby-flash:
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