Obtain Switch Memory Usage; Monitor File Systems Usage - Cisco Catalyst 3850 Manual

Run a System Baseline for Core Resources

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.
show process memory sorted
System memory
reserved
Lowest(b)
PID
5681
10162
10158

Monitor File Systems Usage

At regular intervals, use the show file systems command to monitor the file systems within the switch
Step 5
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.
show file systems
File Systems:
*
An (*) asterisk indicates the default file system. If the file system has a dash (-) or a zero (0) for the
Note
Size(b) field, that indicates that the file system is not present or not recognized.
Use the dir filesystem or the show filesystem command to list the files under a specific files system.
Step 6
When you find crash files, it is important to immediately retrieve them to diagnose a system failure or
unexpected crash.
Best Practice User Guide for the Catalyst 3850 and Catalyst 3650 Switch Series
106
: 3930840K total, 1487028K used, 2443812K free, 222004K kernel
: 1915568076
Text Data
9988 269088
72268 34364
24260 519732
Size(b) Free(b)
248354816 148799488
248512512 178782208
1621966848 346673152
1622147072 350224384
Stack Heap
92 476
104 288
88 10628
Type Flags Prefixes
disk rw crashinfo: crashinfo-1:
disk rw crashinfo-2: stby-crashinfo:
disk rw flash: flash-1:
disk rw flash-2: stby-flash:
System Health Monitoring
RSS Total Process
233060 584844 fed
206548 343980 iosd
108612 662328 wcm