Disk Usage Exceeds Limit 95 Percent After Upgrade To PAN-OS 10.2.0

50099

Created On 04/12/22 19:28 PM - Last Modified 08/09/22 20:22 PM

Alarms

Hardware

10.2

PAN-OS

Symptom

After upgraded Firewall to PAN-OS 10.2.0 the root partition is filling up over 90%

> show system disk-space
Filesystem      Size  Used Avail Use% Mounted on
/dev/root       3.8G  3.4G  235M  94% /
none            2.0G   60K  2.0G   1% /dev

Looking at the output of the CLI command debug techsuppport duts run there is a large sslvpn_ngx_error.log file growing

> debug techsupport duts run
/var depth 4 ====================================================
580M /var/log/pan/sslvpn_ngx_error.log/pan/sslvpn_ngx_error

When viewing the sslvpn_ngx_error.log output we can see the logging level is set to debug where on 10.1.x it was set to Info

> tail follow yes mp-log sslvpn_ngx_error.log

2022/04/11 08:43:39 [debug] 9104#0: http file cache expire
2022/04/11 08:43:39 [debug] 9104#0: malloc: 000000FFD8002240:56
2022/04/11 08:43:39 [debug] 9104#0: http file cache size: 0 c:0 w:-1
2022/04/11 08:43:39 [debug] 9104#0: http file cache manager: 0 e:0 n:10000
2022/04/11 08:43:39 [debug] 9104#0: event timer add: -1: 10000:1108205850
2022/04/11 08:43:39 [debug] 9104#0: epoll timer: 10000

Environment

PAN-OS 10.2.0

Cause

This has been identified by bug PAN-190923. The sslvpn nginx has "debug" level logging by default which possibly caused much more logging at "debug" level.

Resolution

This fix for bug PAN-190923 is targeted for PAN-OS 10.2.1.

Workaround

Delete the large sslvpn_ngx_error.log file from the CLI to free up Disk Space on root.