AIXpert Blog is about the AIX operating system from IBM running on POWER based machines called Power Systems and software related to it like PowerVM for virtualisation, PowerVC for Deploying VM's and PowerSC for security plus performance monitoring and nmon
Stop PRESS: I have just been told the Energy stats do not work on the POWER8 E870 or E880 as they don't include the hardware to collect measurements Unfortunately, it is not documented in the IBM KnowledgeCenter Supported are POWER8 S8xx, S8xxL and E850, when connected to a HMC Note: this Python script creates HMC Sessions but does not log off so they build up over time & could cause your HMC low memory problems. - The solution to that is covers in a new AIXpert Blog here: ... [More]
HACMP recently announced support for the following: PowerHA announces support for JS23/JS43 PowerHA announces support JS12 PowerHA announces support for Async GLVM PowerHA/XD Announces Support for SVC 4.3.1 Click on the above linked text for full support details.
People share nmon captured data files with me all the time because they would like me to review the data and make suggestions about the hot spot and tuning. I guess they trust me :-) Some user get a little paranoid about the data (mostly due to having to follow many procedures to get the nmon file through firewalls so it can be emailed to me) and ask questions about if it contains information they don't want to accidentally share. Thankfully the nmon data files is just a text file that you can edit with "vi" so there is nothing... [More]
As part of my nmon for Linux open source project, I often get asked questions and I have selected one here that comes up often. The nmon user asks is nmon only reporting 48 CPUs when he knows the machine has 24 CPU and they are 6 core each? The first answer was - Why the heck are you using a 4 years out of date nmon for Linux version?? But once we get passed that shocker, we look in to the details nmon has collected. From the nmon data in the BBB Section, we have the /proc/cpuinfo file. It is massive and has large amounts... [More]
Assuming you have grown your Shared Storage Pool in the past by adding more LUNs and you have say 32 LUNs (twice if mirroring with a failgrp) then you can grow you SSP the easy way and by magic. Just get the SAN team (that could be yourself, of course) to expand the size of the Pool LUNs. Our minimum size LUN policy is 128 GB and our Repository LUNs are 1 or 2 GB. I tried this experiment based on one line in a presentation on the next SSP release by the developers, where they said "The Share Storage Pool for a few version... [More]
AIX 7 SSD/Flash Cache Best Practice I have been asked for this a couple of times and the answers that spring to mind are Ha ha ha ha ha ha! Oh, you are serious! Consultant standard answer number 1: "It depends" Hmmm! Tricky! I guess the problem is: The questioner is really wanting a prediction of what will happen and is it going to be cost efficient. And these questions have no answer . If you look the topic up on Google you will get hits of the Official Announcement and a few cut'npastes of them, which amounts to a... [More]
This flash of support can also be found at http://www.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/TD103053 HACMP supports the new IBM System Storage DS4000 EXP810 Storage Expansion Unit March 31, 2006 IBM High Availability Cluster MultiProcessing (HACMP*) for AIX 5L*, Version 5.2 and Version 5.3 expands support to the IBM System Storage* DS4000 EXP810 Storage Expansion Unit (part number 181281H). The EXP810 expands the IBM DS4000 series midrange disk storage offerings of high-performance, high-availability, business-critical storage... [More]
IBM announced a new AIX Service Strategy. The objective is to increase the length of time you can run on an AIX Maintenance Level. Currently, there are 2 ML's per year. Going forward, there will be one ML and one functional release per year. (The releases are 6 months apart.) My understanding is that you should strive to be at or near the current ML. The functional releases are "as needed". For more information, see http://www.ibm.com/servers/eserver/support/unixservers/bestpractices.html
p5-590 and 595 System Handbook Revised: January 11, 2006 http://www.redbooks.ibm.com/abstracts/sg249119.html p5-590 and 595 Technical Overview and Introduction Revised: January, 11, 2006 http://www.redbooks.ibm.com/redpapers/abstracts/redp4024.html Implementing NFSv4 in the Enterprise: Planning and Migration Strategies Revised: January 12, 2006 http://www.redbooks.ibm.com/abstracts/sg246657.html DS300 and DS400 Best Practices Guide Revised: January, 12, 2006 http://www.redbooks.ibm.com/redpieces/abstracts/sg247121.html N-Series Snapshot, a... [More]
Geographic Logical Volume Manager (GLVM) provides remote disk mirroring over TCP/IP networks. It is part of the base AIX operating system starting with AIX 5.3 ML3. (It was previously a component of HACMP/XD). GLVM can help provide a "disaster recovery" strategy by maintaining a realtime copy of the data at a remote disaster recovery site. If the primary site fails, a current copy of the data is available at the backup site. The recovery and reintegration are manual processes, so read the documentation carefully, and test before using in... [More]
You are invited to a special webcast aboutIBM System p™ servers for UNIX® andLinux® operating systems. Hear about new features designed to better manage energy costs, reducesystem downtime and automatically balance workload across servers. You’ll alsohave an opportunity to ask questions. This complimentary event features speakers including:* Bill Zeitler , Senior Vice President and Group Executive, IBM Systems and Technology Group* Ross Mauri, General Manager, IBM System p* Pat McConnell, Vice President, IBM System p Sales, Americas* Scott... [More]
The AIX 6 open beta is now available from https://www14.software.ibm.com/iwm/web/cc/earlyprograms/ibm/aix6beta/ AIX 6 offers new capabilities such as Workload Partitions, Role Based Access Control and many other exciting features. AIX 6 is fully binary compatible with AIX 5L. AIX 6 will run on IBM systems based on POWER4, PPC970, POWER5 and POWER6. Go to http://www-03.ibm.com/servers/aix/6/preview.html for more details on the AIX 6 preview.
On August 8, 2005, President George W. Bush signed the Energy Policy Act of 2005. This Act changed the time change dates in the U.S. Beginning in 2007 AIX development will be releasing APARs to change the current AIX behavior. A workaround will also be published for AIX 4.3 since it is out of service. DAYLIGHT SAVING TIME DEFAULT CHANGING IN 2007 The United States official Daylight Saving Time begin and end dates have changed as of the year 2007. The new start date is the second Sunday of March; the new end date is the first Sunday of... [More]
To give is the full title IBM PowerVC (Power Systems Virtualisation Centre) Cloud Manager Edition 1.3.1 (phew!) became available in June 2016. I think we will be calling it PowerVC Cloud Edition and it came out with the following new features: Regular Standard Edition AIX VM - Active Memory Expansion Dynamic Resource Optimiser – can be scheduled Remove a VM but keep the storage “just in case” Internal database moved from DB2 to MariaDB Novalink improvements [not covered in this session] Project & user role... [More]