Swap Memory of a PA-400 Series Firewall is fully utilized.
13078
Created On 09/05/22 05:55 AM - Last Modified 09/09/22 17:57 PM
Symptom
- Swap memory of PA-400 series firewall is fully utilized.
- No memory leak seen.
- No impact seen in system functionality and performance.
- Truncated output of show system resources shows 0 free swap memory:
top - 03:36:01 up 16 days, 10:56, 1 user, load average: 3.13, 3.18, 3.00
Tasks: 294 total, 6 running, 168 sleeping, 0 stopped, 47 zombie
%Cpu(s): 35.8 us, 9.9 sy, 0.0 ni, 53.0 id, 0.0 wa, 0.7 hi, 0.7 si, 0.0 st
KiB Mem : 16269716 total, 456472 free, 5136492 used, 10676752 buff/cache
KiB Swap: 1020 total, 0 free, 1020 used. 6962488 avail Mem
Environment
- PA-400 Series Firewall
- Swap memory
Cause
PA-400 is designed with small swap memory (1MB) and large physical memory (RAM: 16GB). Due to small swap space, it is normal to see 100% usage of it.
Resolution
100% swap usage on this platform is normal and can be safely ignored as the system relies on the physical memory.