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Whole Power Server + Virtual Server Monitoring - Part 5 via Ganglia
Ganglia is a open source performance and configuration tool that collects data from a tiny daemon on each OS and then creates a Web server based graphical tools to draw performance data and show the configuration. With a few add-ons, you can dynamically decide the historical data you want graphed and with POWER add-ons you get the PowerVM stats for shared processors, Entitlement, physical CPU use etc. Under the covers it is using the amazing rrdtool so you can extract the data for other uses and it automatically space manages the data. By... [More]
Tags: powervm aix cec power7 power6 performance ganglia monitoring linux |
Rule of Thumb: Sizing the Virtual I/O Server
I often get asked: How large to make a pair of Virtual I/O Server (VIOS)? The classic consultant answer is "it depends on what you are doing with Disk & Network I/O" is not very useful to the practical guy that has to size a machine including the VIOS nor the person defining the VIOS partition to install it! Added new guidance at the bottom in RED Observations : The VIOS server unfairly gets a bad press but note: Physical adapters are now in the VIOS, so device driver CPU cycles (normally hidden and roughly half of the OS CPU... [More]
Tags: vios aix i/o sizing virtual power6 power7 server linux |
Books Every UNIX/Linux/AIX Person Should Already Have Read
Yes, I admit it I am a "hacker" in the old sense of the word i.e. Definition 4 = A person who is good at programming quickly.See Hackers Dictionary below. I was think that there are certain books every one in the computer industry should have read before they can claim any level of computer expertise. If you have not read them don't tell any one and quickly get yourself a copy and read it quickly. Thumbnails are borrowed from Amazon - thanks guys and good to see all these important books are still available. My five top books all... [More]
Tags: books aix linux unix web internet |
nmon Analyser Version 3.4 = Just Released, Get Your Copy Today
Stephen Atkins (the Guru behind the nmon Analyser) has released a new version - two days ago. This includes loads of improvements and some new features. Best of all - less problems running on newer Excel releases (it works around inconsistencies with the Microsoft API). I have always said that at least 50% of the popularity of my nmon is down to the excellent Analyser graphs. Very few people regularly see the online screen view. Thanks again Steve, for all your many hours of hard work in your personal time on the behalf of the tens of... [More]
Tags: 3.4 power7 nmon graphs linux analyser excel aix power performance |
FAQ2: Analyzing Large Volumes of nmon Data
I regularly get asked a question like: I have 4 months of data from 25 machines and have to develop a Capacity Planning model to size these LPARs on to new machines but I am having problems with having so much data. What can you recommend? We need graphs of CPU compared to Entitlement CPU Physical CPU use Maximum real memory use Network MB/s Disk MB/s Disk IOPS Sometimes this data is needed as input in to the Workload Estimator tool or Server Consolidation tools. My standard response is: You now understand Performance Monitoring and... [More]
Tags: rrdtool nmon2rrd planning analyser linux capacity nmon2web aix nmon |
