Category Archives: IBM POWER

Graphing ilcs in Grafana

Posted on October 11, 2023 by morsing

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 →

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Capacity and performance check script

Posted on May 19, 2023 by morsing

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 →

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Checking SUSE bootability on POWER

Posted on April 21, 2023 by morsing

This little script checks the GRUB boot image for the VG/LV/file string pointing to the correct place, e.g. /boot/grub/grub.cfg. This works on SUSE / SLES on POWER. # SLES bootability monitor## Henrik Morsing 1.0 24-FEB-2023 Initial ver=1.0 [[ “${1}” == … Continue reading →

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Script to change WWPNS in LPAR profile

Posted on November 3, 2022 by morsing

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 →

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Starting tactic script for CPU allocation calculations on POWER9/10

Posted on October 21, 2022 by morsing

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 →

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Concurrent/parallel or sequential LPAR migrations

Posted on October 17, 2021 by morsing

When you run lslparmigr -r sys -m <system>, the value of “num_active_migr._supported” shows how many concurrent migrations are possible. For multiple partitions, LPAR names must be comma separated. The maximum number of partition names that can be specified is displayed … Continue reading →

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