Category Archives: Scripting

Graphing ilcs in Grafana

Graphing of ilcs in AIX is not included in the nimon data output because ilcs comes from the mpstat command and ilcs is not part of the perfstat library that njmon uses. ilcs is “Involuntary Logical CPU switches” and occurs … Continue reading

Posted in AIX, IBM POWER, Performance tuning, Scripting | Tagged , , , , , , , | Leave a comment

Capacity and performance check script

Another little script I wrote to check capacity aspects of an AIX LPAR. I call it capacity checks as it is basing most of the checks on counters and averaging out over 90 days. Some of this is based on … Continue reading

Posted in AIX, IBM POWER, Performance tuning, Scripting | Tagged , , | Leave a comment

Zabbix API shell script to show maintenance association

Just a quick note to show how you can get a server to show which Zabbix maintenance group it is in upon login.

Posted in Automation, Scripting | Leave a comment

Script to change WWPNS in LPAR profile

This is a script to interactively change WWPNs on adapters in an IBM POWER/Power systems LPAR profile. This is useful if you have to re-create adapters or even whole profiles as the HMC GUI does not allow you to set … Continue reading

Posted in AIX, HMC, IBM POWER, Scripting | Tagged , , , , , , | Leave a comment

Starting tactic script for CPU allocation calculations on POWER9/10

Based on Earl Jew’s presentation on the 6th of October 2022, “Simplest starting tactic for Power10 AIX exploitation V1.2″. Excellent IBM POWER VUG materials can be found here: https://ibm.ent.box.com/s/6hn2orvig4r2peu6e39owmp07ewyyf4x And the meeting presentation replay here: https://ibm.ent.box.com/s/5atsp26sxup1ob04c3urbkiovj8epbax This is an analytic … Continue reading

Posted in AIX, IBM POWER, Linux, Performance tuning, Scripting | Tagged , , , , , , , | 1 Comment

Growing SAN LUN on Linux

This procedure works on SLES 15, should work on RHEL, but not yet tested. This script is for growing SAN LUNs running via multipath on Linux. Makes it look like AIX and just as easy! Growing SAN LUNs in Linux … Continue reading

Posted in Linux, Scripting | Tagged , , , , | Leave a comment