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
At a recent POWER & AIX Workshop, I was challenged when I stated that you can download IBM Systems Director (ISD) and run it at no costs. Granted: If you want IBM Support for ISD functions then you do need to purchase the license and SWMA for every endpoint (think HMC and every core of any machine that ISD is controlling). Compared to other systems management tools (I have worked with in the past) the ISD prices are very low so its worth asking for the local currency price. I also think most people (including myself) will get stuck on... [More]
We found it was taking from two to three hours to run the configure script for apache. After searching we found that the solution was to change the environment variable CONFIG_SHELL to point to a different shell than the default ksh. When this was done, the multi-hour run of ./configure was done in 3 minutes. Solution: From the Mozilla site for AIX it says: export CONFIG_SHELL=/opt/freeware/bin/bash export CONFIGURE_ENV_ARGS=/opt/freeware/bin/bash ./configure From testing, I found I could also use ksh93 and get similar results. export... [More]
In case, you missed it : AIX became 25 years old, today . AIX is IBM's name for their UNIX, it stands for Advanced Interactive eXecutive and based on AT&T's UNIX System 5.2 and 5.3. I was not at the launch of the IBM RT (the computer on which it ran) but I know people that were apparently there was a lot of dry ice on the stage. Nor was I with IBM at the time but working for a small software developer company. I do remember, having a loan RT from IBM for porting our software and was impressed with the rugged machine. We weren't given... [More]
We have all heard the old story of a computer company that was so successful that is had to move to smaller premises! The point being that they upgraded the computers to much smaller but more powerful ones and did not need the floor space. Well, it is happening to me! My Advanced Technical Support group are moving from IBM Bedfont Lakes (near Heathrow), UK from building 2 to building 3. That might not sound like much and it is only a stones throw away but we are going from 10 racks down to 3 racks. The old POWER5 machines that were not... [More]
The new " topas -C " CEC flag in AIX 5.3 ML3 monitors the performance of all partitions in a Power5 server. The output looks like Topas CEC Monitor Interval: 10 Mon Oct 10 07:43:07 2005 Partitions Memory (GB) Processors Shr: 4 Mon: 2.3 InUse: 2.0 Shr:1.4 PSz: 2 Shr_PhysB: 0.02 Ded: 0 Avl: - Ded: 0 APP: 2.0 Ded_PhysB: 0.00 Host OS M Mem InU Lp Us Sy Wa Id PhysB Ent %EntC Vcsw PhI... [More]
If you are looking for an update on AIX on the IBM BladeCenter blades or looking for the details of the latest POWER7 based blades, there is only one place you need to remember. I am adding this to this blog because I couldn't find it and you might have the same problem :-) Its here - Power Blades Wiki Look in the Presentation list for the latest POWER7 blades PS700, PS701 and PS702 and AIX levels its supports presentation. This is by the world wide "top gun" of Power Blades Trina Bunting. Lots on informative pictures, the extra card... [More]
LPARmon Version 2 is now available from IBM Alphaworks. This free tool provides a graphical interface for viewing partition performance. The tool was developed by Austin's Briefing Center to demonstrate Advanced Virtual Partitioning, in particular to demonstrate free pool utilization in a micropartitioned server. I highly recommend it. http://www.alphaworks.ibm.com/tech/lparmon?open&S_TACT=106AH62W&S_CMP=NEWS
Four things I think you should know before you try this: The documentation for the update can be found here: http://www-01.ibm.com/support/docview.wss?uid=hpc1vios117f5701 I updated three of my Virtual I/O Servers to 220.127.116.11 from 18.104.22.168 over the weekend. I started these late on Friday night with the "no reboot" options and they finished about the same time on Sunday afternoon i.e. 48 hours . The Release Manager downloads the update directly to the VIOS /opt/VIOS/update/VIOS and sub directory for the release name and this takes over... [More]
I have just updated my article on DeveloperWorks that cover the nweb Webserver. You can find it here: nweb: a tiny, safe Web server (static pages only) The what? I wrote the nweb Webserver as example C code to show the concepts and details of how they work. It was under 100 lines but I thought it actually was a pretty useful tool and used it, for real, in a number of projects and others have used it too. Then I though I had better put in some safety checks - otherwise you could give away read access to ALL the files on your AIX, UNIX or... [More]
Here are several URL's for Open Source Tools for AIX. The "IBM AIX Toolbox" has the most tools, but not necessarily the most current versions. The most current version are on the "AIX Open Source" and "Hudson Valley CC" URLs. IBM AIX Toolbox for Linux Applications - http://www.ibm.com/servers/aix/products/aixos/linux/download.html AIX Open Source - http://www.perzl.org Hudson Valley CC - http://pware.hvcc.edu (Includes AMP, gcc 4.2., samba under "bundles" directory ) Bull Open Software archive for AIX - http://www.bullfreeware.com Bull... [More]
There were a number of announcements made today by Power
Systems including new hardware features, a new platform management console, and
new PowerVM virtualization capabilities.
Two new Power Systems blade servers were announced, the PS703 and PS704 . The PS703 blade supports up to 16 processor cores in a single
BladeCenter slot and the PS704 supports up to 32 cores in a double-wide
blade. The PS703 and PS704 also support
a new solid state drive option.
The Power 750 Express server has new processor options or 4, 6 or 8
If you collect nmon data while running Active Memory Expansion (AME), you get extra performance stats as below: MEM tab Size of the Compressed pool(MB) Size of true memory(MB) Expanded memory size(MB), Size of the Uncompressed pool(MB) MEMNEW tab Compressed Pool% PAGE tab for paging rates (pages per second) but this time very quickly in and out of the compressed memory area Compressed pool pgins - other tools like topas call this CI Compressed pool pgouts - other tools like topas this call CO Unfortunately, the last two appear in Excel columns... [More]
Odd. I thought I have put this on this blog before but I can find it now so just in case ... here it is or here it is again.
The SSP4 can have mirrored failure group FC disks to handle adapter, FC cable, FC switch, entire FC disk sub-system, site or VIOS failure.
But there is still a single SSP Repository disk. Isn't this a single point of failure?
The answer is " No because you can quickly rebuild the contents of the Repository Disk after it has failed ."
You are not meant to know this... [More]