Tag Archives: aix

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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Unable to increase MaxLPs for LV

Posted on August 18, 2023 by morsing

As part of growing filesystems on AIX, you often hit the message: which is a bit of a legacy setting from the days of small disks. This is easily over-come by running chlv -x <number> but I was recently thwarted … 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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NIM alt_disk_migration and p6 processor mode

Posted on February 8, 2021 by morsing

I was trying to do a NIM alt_disk_migration on a POWER7 LPAR form AIX 7.1 to 7.2 but the nimadm scripts kept stalling, but without outputting anything interesting, even in debug mode. In the end I gave up and tried … Continue reading →

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rmsock bug and workaround

Posted on January 30, 2016 by morsing

I found a bug in rmsock on AIX 6.1 TL9 recently which caused a server crash. If run on a socket ID that has disappeared, the server just dumps and reboots. I came up with a work around for identifying … Continue reading →

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xpinfo and dyntrk – FSCSI_ERR10

Posted on March 3, 2012 by morsing

I had noticed lots of FSCSI_ERR10 ‘Configuration mismatch’ messages with identifier 1FB4FD21. The errpt entry had the PID as 12D0E4 hex in the sense data: SENSE DATA 0000 0000 0000 00D3 0000 0016 0200 0000 0000 0000 0000 0000 0000 0000 … Continue reading →

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