AIXpert Blog is about the AIX operating system from IBM running on POWER based machines called Power Systems and software related to it like IBM Systems Director, PowerVM for virtualisation and PowerSC for security plus performance monitoring and nmon
I regularly get asked to run a demonstration for IBM Systems Director but that is a time consuming business for both me and the audience. Especially, when you can find out every thing that I know from the comfort of you own office or even home office plus Stop, Replay and Pause via YouTube videos. So here is a reminder and hopefully a page I can point to when I next gets asked.
ISD63 Workshop 1 Techie Intro... [More]
One customer was experiencing slow performance for the gcc build script and the Apache configure script. The problem was resolved by exporting the following variables. export CONFIG_SHELL=/opt/freeware/bin/bash export CONFIG_ENV_ARGS=/opt/freeware/bin/bash The performance for the Apache configure script went from 2 1/2 hours to 3 minutes. The performance for the gcc and gcc++ build went from 4-5 hours to 35 minutes. The performance for the full blown gcc build using NFS went... [More]
IBM SECURITY ADVISORYFirst Issued: Wed Apr 4 09:05:40 CDT 2007 ========================================================================== VULNERABILITY SUMMARY VULNERABILITY: Remotely exploitable denial of service vulnerabilities in OpenSSH. PLATFORMS: OpenSSH 4.3p2 for AIX 5.2, 5.3 SOLUTION: Apply the APAR, interim fix or workaround as described below. THREAT: A remote attacker may cause a denial of service. CERT VU Number: n/aCVE Number: ... [More]
I want to remind you of the value of pSeries Subscription Services. Recently, those of us subscribed to receive 'Critical Fixes' got a note pointing to this URL: http://techsupport.services.ibm.com/server/criticalfixes3/critfixes/5300-02.html This listed 36 Critical Fixes of which two were Critical Security Fixes: IY68463 AIX 5.3 SECURITY: Local root exploits in perl 5.8.x IY70026 AIX 5.3 Attacks against TCP via ICMP Other critical security fixes recently announced through subscription service IY68825 AIX 5.3 Remote... [More]
Late last week Systems Director 6.2 was released - a few days early too! This is the free to download and use IBM platform management software from IBM. For us AIX guys that means Power Systems Hardware, HMC, IVM, VIOS and AIX - and Linux on POWER too This new release is was focused mainly performance, simpler install (or migration from 6.1) and rolling in many fixes that could not be addresses with service packs. There are also some new features like dual VIOS SAN support for VMControl virtual application deployment. AIX is obviously the... [More]
AIX O/S Updated to Support New Daylight Savings Time Change The Energy Policy Act of 2005 (Public Law 109-58) was passed by the United States Congress on July 29, 2005 and signed into law on August 8, 2005. This law changes the time-change dates for Daylight Saving Time in the United States. Beginning in 2007, DST will begin on the second Sunday of March and end on the first Sunday of November. IBM has released updates to AIX 5L operating systems to support this change. The updates should be applied prior to March 11, 2007. AIX 5L Version 5.3... [More]
AIX5L Practical Performance Tools and Tuning GuideRevised: November 2, 2006 ISBN: 0738491799 738 pagesExplore the book online at http://www.redbooks.ibm.com/abstracts/sg246478.html Certification Study Guide: System p5 Admin & Support for AIX v5.3Revised: October 31, 2006 ISBN: 0738496499 720 pagesExplore the book online at http://www.redbooks.ibm.com/abstracts/sg247199.html
If you are using AIX sendmail, you should consider the following fix to prevent spammers from using it as an open mail relay. ftp://aix.software.ibm.com/aix/efixes/security/sendmail_3_mod.tar.Z /a> The exposure applies to AIX 5.3 ML1 and earlier distributions. The exposure was resolved in AIX 5.3 ML2. For more information, see http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0285
The latest Versioned Workload Partition (VWPAR) Version 1.1.2 is available but largely secret!
With this update I get on my AIX 7 virtual machine, in which I have installed both AIX5.2 and AIX 5.3 support:
# lslpp -L | grep -i vwpar
vwpar.52.rte 22.214.171.124 C F AIX 5.2 Versioned WPAR Runtime
vwpar.images.52 126.96.36.199 C F Versioned WPAR 5.2 Support
vwpar.images.53 188.8.131.52 C F Versioned WPAR 5.3 Support
vwpar.images.base 184.108.40.206 C F ... [More]
UPDATED: 30 JANUARY 2015
The IBM Official Technote can be found here http://www-01.ibm.com/support/docview.wss?uid=nas8N1020533
It clarifies the mean of the ASMI settings i.e. it is the number of adapter slots AND the specific slots AND a further bug only some settings work until the next firmware release.
Even with the newer firmware my recommendation stands:
Completely Switch OFF the I/O Adapter Enhanced Capacity feature as you install the machine as it needs a power off
- Unless you are running Linux on... [More]
Support for the new Power5+ Servers: http://w3-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/FLASH10519 HACMP supports the IBM System Storage DS4200 Express http://w3-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/FLASH10514 HACMP supports SVC 3.1 & Metro Mirror Express http://w3-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/FLASH10513 HACMP supports the JS21 BladeCenter Express http://w3-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/FLASH10512 HACMP supports the IBM System Storage DS4700... [More]