So I got asked, just as an example configuration which forces lots of workload per CPU: Given a 16 CPU POWER machine and a need to run 100 workloads, would I recommend 100 LPARs or 100 WPARs? In case you are not familiar with POWER technology: LPAR = Logical Partition used the PowerVM to split CPU, memory and I/O across multiple virtual machines (also called virtual servers). The I/O is handles by a special purpose LPAR called the Virtual I/O Server, which provides virtual network, virtual disks, virtual optical and virtual tape.  Each LPAR has... [More]

Tags:  aix7 power7 wpar workload lpar powervm vios

  I got another WPAR question today: From the Global AIX, I can add a filesystem to /wpars/WPARname/directory so the WPAR has access but what if I don't want to have the filesystem mounted there in the Global AIX?   For example: I have a Global AIX filesystem called /tools that I want to mount in to one or many WPARs and appear and /temp in the WPAR(s)?   My first answer is well you can use NFS because I do that all the time and I am a heavy user of NFS - no jokes please. I use NFS heavily!  If the NFS server exports the mount point for every... [More]

Tags:  - filesystem aix global workload sharing wpar partition power7 aix6

This week I spent 4 hours with a customer covering many advanced WPAR topics and took way a bunch of questions that I had to check the answers and ask the WPAR developers themselves to be sure I had the right answers. If the questions were not clear to my customers and I did know initially know the answers then there may be others with similar issues so I thought I would share the answers with everyone.   1) Workload Partitions - What is the road map? Well, I am not going to make announcements on a blog for sure. If you are new to WPAR, I can... [More]

Tags:  power6 workload power7 wpar aix partition powervm

It was my birthday on Saturday and by pure luck my Raspberry Pi was delivered the day before - what a great day "hacking" (in the old sense of the word). I have been waiting for a few months for this delivery - What a treat!!  If you have not heard of this credit size computer before here is the back ground.   The Problem In the UK, school information technology education has been pitifully reduced to Microsoft Word, Excel and Powerpoint. My own kids came home badly depressed as they started the classes as they knew far more than the... [More]

Tags:  nweb ams aix power7 ame power amd wpar nmon aixpert itm isd rbac raspberry ssd ganglia dlpar pi charm ssp

I spent two days with a "well known brand" UK retailer trying out Versioned Workload Partitions (vWPAR).  Actually, it was with an IBM Business Partner that runs the machines for them- two knowledgeable and fun guys to work with - we were asked by the European manager in the next room to keep the noise down! This Versioned WPAR technology lets you run AIX 5.2 or AIX 5.3 inside an AIX 7 on Power7 Workload Partition (WPAR). You simply get the source AIX up to the required level (which you should already by running), then take a mksysb... [More]

Tags:  versioned partition workload aix aix7 powervm wpar 5.3 power7

I was with a large UK based insurance company last week. They, and their facilities management team, run many very large machines like POWER6 595 and POWER7 Power 770/780.  Most machines are 64 core and 2 TB of memory and running 160+ virtual machines (LPARs) on each. These are large, complex and well run machines  - all of the AIX images and VIOS are pretty well up to date with current or N -1 releases. A very pleasant surprise and impressed.  They told me that even with 2 TB of memory they tend to run out of memory before CPU cycles .  Each... [More]

Tags:  power7 wpar powersystems power6 aix memory ams ame

That was a shock - right out of the blue, we are told HACMP (OK we should call it PowerHA SystemMirror but life is too short) now supports Versioned WPARs - I had customer questions on this earlier in the week but no idea it was about to be announced. We were recommending using HACMP at the AIX 7 level and treating the WAR as a very well controlled and isolated bunch of processes, file systems etc. as a single resource. But now its much simpler. Want to know more: Techdoc

Tags:  powerha hacmp wpar power7 aix

We have blogged on this really cool AIX 7 feature in the past - but here is my problem: Once I install the AIX 5.2 mksysb image in to the Workload Partition running on AIX7 it all works fine but ... then what can I show an audience to show off "AIX 5.2 running on top of AIX 7": I need a simple application that only runs on AIX 5.2 . Something simple enough that it does not take hours to install and hopefully that it is something visually interesting to see. I am told we can run Oracle 8 now including the kernel extension but its not... [More]

Tags:  aix7 power7 wpar powervm aix versioned

I was asked at the Technical University: How can we tell (in a script) if we are running in a WPAR or a regular AIX? We also called it the Global AIX, if its running WPARs.  It took me a good few minutes to find out how to do it and thought I would shared it to save you time: Use: uname -W It returns 0 for the Global AIX and a regular AIX or if it is in a WPAR it returns the WPAR Number (i.e. non-zero) Below we show how to use this in a script. wparno=`uname -W` if (( $wparno == "0" )) then         echo Global AIX else         echo... [More]

Tags:  global aix wpar

Here are the results from 40 techinical IBMers, 300 people at the Las Vegas Technical University (mostly customers, some business partners and a few IBMers) and 90 more from the same event in Lyon, France. Remember this contains no announcements, the technology is available now and the choice of technology is entirely my own.  Voters were allowed to vote for 4 out of the 10 and the results are percentages. All technologies got votes, so there is no failures here, even the lowest scoring one had ~47 votes. My comments: Clearly, Solid State... [More]

Tags:  analytics cloud multithreading vwpar wpar aem aix fcocee ame ssd cluster systems evacuation ghz director purescale

 Its just not fair that the week I am on holiday so much brilliant software is coming out AIX 6.1 TL06 AIX 7.1 first release Workload Partition Manager for Versioned WPARs (meaning running AIX 5.2) - a Systems Director Plug-in Virtual I/O Server 2.2 Don't forget that for AIX you should also install the first service pack that comes out at the same time. This sweeps up all the fixes between the Gold DVD cut and the actual availability date. The smart guys will be downloading the AIX and VIOS DVDs from ESS (see earlier AIXblog) to get it quickly.... [More]

Tags:  mgr vios 7 for tl6 6 versions wpars wpar 2.2 aix

With AIX 7 and POWER7, you now have the option to run the old withdrawn AIX version 5.2 within a WPAR with this new offering - AIX 5.3 Workload Partitions for AIX 7, version 1.1 This will run the same AIX 5.2 OS, same middle-ware and same application but on right-up-to-date hardware and OS. Then you can remove the old POWER4 (or older hardware) to: Reduce electricity & heat, Free up floor or rack space, Reduce hardware maintenance or if you don't have it, reduce your risks, Plus either a performance boost due to POWER7 or reduced... [More]

Tags:  versioned aix7 power7 5.2 aix wpar

I was just asked this question by customer and it got me thinking, Items I would include: WPAR takes seconds to create and LPARs minutes LPARs need setting VIOS LV or LUNs but WPARs add simpler NFS mount points, or can just use Global AIX diskspace options LPAR needs 512 to 1GB to boot AIX and a WPAR takes just ~60 MB (yes sixty megabytes) You can share application code say 1 GB in each and every LPAR (40 LPAR = 40 GB) or just one shared read-only copy for all WPARs 40 WPAR = 1 GB).This saves man-power in maintenance, disk space AND memory (if... [More]

Tags:  power7 lpar aix7 aix wpar 5.2

 Just a quick look at the features for AIX7 - which is coming soon. Take a look at AIX7 Preview for an official statement. The two major items for me are 1) Scaling to 256 cores (or CPUs as I have called them for 25 years) Power systems always had lower CPU counts than the competition particularly in the high end machines due to the faster speed of the processor and this benefits batch (single threaded) work, software costs (lower CPU numbers) and is easier for scaling up but now a truly massive POWER7 machine is near and AIX7 is the OS to run... [More]

Tags:  aix6 wpar aix7 power7

AIX Workload Partitions (WPAR) are now certified by Oracle for Oracle 10gr2 Oracle announces Oracle 10gR2 support for Workload Partitions IBM TechDocs Flash: AIX WPAR (Workload Partition) available for Oracle Database        

Tags:  oracle wpar power aix