topic /opt usage is high on cisco ISE disk - Policy service node in Network Access Control

/opt usage is high on cisco ISE disk - Policy service node

Kishan M — Sat, 03 Dec 2022 06:38:15 GMT

How to clear the /opt usage. /opt : 76% used

Internal filesystems:
/ : 21% used ( 2924316 of 14987616)
/dev : 0% used ( 0 of 32892028)
/dev/shm : 0% used ( 0 of 32903380)
/run : 1% used ( 1228 of 32903380)
/sys/fs/cgroup : 0% used ( 0 of 32903380)
/boot : 25% used ( 113874 of 487634)
/storedconfig : 2% used ( 1590 of 95054)
/tmp : 1% used ( 6216 of 1983056)
/opt : 76% used ( 129583924 of 180485852)
/run/user/440 : 0% used ( 0 of 6580680)
/opt/docker/runtime/overlay/44680bceb63efe27d47dcaf91e5295a1cbf551b1147bb5634f1cc350b1173ec9/merged : 76% used ( 129583924 of 180485852)
/opt/docker/runtime/containers/e715bb4b381e1951dd25e12669edfb2e5d2ccb7b56b709010148e9395d32925f/shm : 0% used ( 0 of 65536)
/run/user/301 : 0% used ( 0 of 6580680)
/run/user/321 : 0% used ( 0 of 6580680)
/run/user/0 : 0% used ( 0 of 6580680)
all internal filesystems have sufficient free space

Directory of disk:/

0 Apr 10 2019 13:59:02 .SS_Install
3817 Feb 12 2019 00:47:10 Current-Active-Sessions.xml
4096 Dec 05 2021 19:01:02 corefileanalysis/
4096 Jan 21 2020 10:19:59 corefiles/
12288 Dec 03 2022 06:05:49 gc/
4096 Apr 10 2019 14:04:18 lost+found/

Usage for disk: filesystem
132694839296 bytes total used
42710867968 bytes free
184817512448 bytes available

Re: /opt usage is high on cisco ISE disk - Policy service node

balaji.bandi — Sat, 03 Dec 2022 10:29:17 GMT

/opt is occupied with space for different - depends on patches, software, what version ISE ?

check what is occupied in /opt

is this impacting ISE performance?

Re: /opt usage is high on cisco ISE disk - Policy service node

amnawajid5573 — Sun, 04 Dec 2022 09:51:03 GMT

Yeah you are right. It is to high and heavy. But you could customize it through custom coding. As we have customized it for showing matches schedule by a developer. Who is expert in these coding etc. SO try to customize it as it will become short and will perform the same funtion which it is doing.

Re: /opt usage is high on cisco ISE disk - Policy service node

Greg Gibbs — Sun, 04 Dec 2022 22:19:59 GMT

ISE is a locked down system. There is no way to gain root access without TAC support, so there is no way to manually free up space in the /opt directory.

The ISE application runs various services and containers to support the various features. There are strict requirements around CPU, Memory, and disk sizes that should be sufficient based on the scale of the cluster. From ISE version 2.7, the minimum disk size supported for any ISE node is 300GB. If you are using ISE 2.7 or higher, you would need to rebuild your ISE VM to resize the disk to meet the minimum 300GB required.

See the Install Guide for more details on the disk size requirements based on the deployment model (standalone, distributed, etc).

Re: /opt usage is high on cisco ISE disk - Policy service node

Kishan M — Mon, 05 Dec 2022 13:18:19 GMT

Hi Greg,

We had 180GB disk, we resized to 320GB and installed the 3.1p4 . All looks fine now