NIM : enabling debug mode for a bos install without using a bosinst_data resource

Call 911 Just type  » 911  »  on the Installation menu : It should display « BOSINST_DEBUG enabled » :   Let’s debug Now we can launch migration again and check why it crashes (in my example , my AIX 5.3 to

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Find latest LVM actions

http://www.aixhealthcheck.com/blog?id=351

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WPAR tiny digest

Update : Migrate Versioned WPARs from AIX 5  to 7 is now possible with AIX 7 TL3 Here is a nice video presentation by Nigel Griffiths : http://www.youtube.com/watch?v=0boDGqHy2YU First you need to backup your WPAR, then stop it, then launch the

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NIM operations don’t work after a Live Partition Mobility? Update your NIM client’s CPU_ID !

Using Live partition mobilty is a real pain reliever when you need to get some downtime, in order to upgrade your pseries’ firmware , for example . (if you’re not familiar with LPM migration , here is a visual example,

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Got sendmail ipv6 errors in syslog ?

From IBM : Technote (FAQ) Question Why is sendmail logging « gethostbyaddr(IPv6:::1) failed: 1 » warning messages to syslog? Answer In AIX 5.3 TL11 and AIX 6.1 TL4 and later, sendmail is IPv6 enabled. When sendmail attempts to resolve local interfaces, it will

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Useful perl One-liners

Thanks to Peteris Krumins ( @pkrumins), here it is, a nice and thorough page about perl one-liners! : source : http://www.catonmat.net/download/perl1line.txt Useful One-Line Scripts for Perl Jan 28 2012 | version 1.08 ——————————– ———– ———— Compiled by Peteris Krumins (peter@catonmat.net, @pkrumins on Twitter)

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pmcycles -M shows the actual speed of your CPUs

This command shows you the CPU frequency, like this : …But this doesn’t display the current speed, while your applications are running. hopefully there is an undocumented option which does just that : -M ( FYI , the actual speed

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Uninstall powerpath on a Boot from SAN configuration and get back to MPIO

Uninstalling powerpath when your rootvg resides on a SAN LUN, is not so easy, because you can’t install concurrently the MPIO disk driver fileset, with the one you’re using with powerpath ! And you won’t be able to uninstall the

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Checking SCSI reservation on your disks

UPDATE : I updated this post with a new information about devscan tool, which *should* work on AIX 5.3 and later AIX releases, and I added AIX 6.1TL7 support for devrsrv tool When you change the reserve_policy on a hdisk

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How to tell which PowerVM Editions feature was ordered

http://www-01.ibm.com/support/docview.wss?uid=isg3T1010860 Technote (troubleshooting) Problem(Abstract) PowerVM Editions (Formerly Advanced POWER Virtualization – APV) comes in three options: Express, Standard, Enterprise. How do you know which one you have when reviewing the VET code on the POD website? Symptom The VET code

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