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
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]
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]
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]
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 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]
HACMP Tidbits Tidbits from Shawn Bodily: - First and formost, TSM does NOT work with HACMP v5.3. A TSM APAR s required (IY80002) that has yet to be released. This APAR is expected to drop in late March. (This should not be a surprise - it is documented in the TSM docs.) - A podcast explaining some of the new features in HACMP 5.3 is now available: http://www.ibm.com/systems/p/ha - A new redpaper on HACMP DLPAR & Virtualization was just released. It's essentially Chapter 10 of the new HACMP cookbook; released on 30-"Dec-2005: Cookbook:... [More]
If you plan to use an existing HMC with a new Power5 server, be sure the HMC version is 4.5. This is required for the current Power5 microcode (SF230_145, August 2005). The new microcode/HMC versions support concurrent maintenance, or the ability to do most microcode upgrades dynamically, without having to take down partitions. You can download the HMC update from http://www-912.ibm.com/eserver/support/fixes/
This blog also applies to Power Servers running Linux on Power native on the machine.
While you can perform a text based Linux install on the dumb console terminal emulator (see previous AIXpert Blog about the serial cable that you need and the software) as a challenge to survive the Tab navigation, space selection, sometimes the cursor works and occasional Function Key show stopper (SUSE SLES 11) - I would recommend a VNC install.
First, you can get back to your desk to run VNC viewer client to complete the install and not... [More]
Yes this is still the AIX pert Blog but my beautiful POWER8 machines can also run that "odd ball" operating system now called IBM i. That should generate some comments :-) We have a project to install IBM i 7.2 and then adopt it into PowerVC for Capture and Deploy. This feature is in beta test and selected customers allowed to give it ago. It is planned for full release later this year (that is not an IBM promise).
If you are interested in testing PowerVC with IBM i visit:... [More]
You can use "group based routing" to restrict IP routesby user ID. One use might be to separate production and administrative IP traffic. For more information, see http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.doc/aixbman/commadmn/tcp_route.htm