IBMi.org – Bart's blog

IBM i and PowerVM features and tools

Use link aggregation instead of VIPA on IBM i

In the past, the only option to provide redundant Ethernet on dedicated network adapters for IBM i was a VIRTUALIP ‘interface’. Starting with IBM i 7.1 TR3, there is a new feature called Link aggregation. It is much better and much easier for implementation than VIPA.

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My few words about HMC Enhanced + interface

Those of you who run recent hardware, probably noticed the new HMC interface called Enhanced+ GUI available since the HMC Firmware 8.8.1 SP1. In this post I would like to share my point of view and give some advice for people who would like to use it. Read more of this post

POWER8 – No hardware maintenance-no firmware upgrade

Back in the day, downloading of a server firmware from IBM Fix Central website was limited only to users and serial numbers with valid IBM hardware maintenance contract. With POWER8 servers IBM put such a lock into the servers. Thus, if your hardware maintenance contract expired, you cannot install any newer firmware beyond this date. Read more of this post

IBM i lpar crashed duo to Dynamic Platform Optimizer

Dynamic Platform Optimizer is a hypervisor function which rearranges logical partition processors and memory on the system to improve the affinity between processors, and memory of logical partitions. In this post I will describe when to use this function and how to prevent IBM i Lpar from crash. Read more of this post

Perform a command across multiple IBM i systems

There is a very simple how to submit any IBM i command across multiple systems. The main requirement for it is the Management Central. Read more of this post

Setting CPU/MEM as absolute value from the HMC CLI

From the HMC firmware version 8, it is possible to define absolute values for DLPAR commands in order to change physical, virtual CPUs from the HMC command line. Read more of this post

HMC 8.8.2 and SP1 installation

I would like to bring to attention installation order of fixes for the HMC firmware 8.8.2. If you  install the fixes in incorrect order, you might loose the RMC connection to all AIX/VIOS hosts.

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How to speed up your POWER server with no cost

In my previous post I’ve mentioned about the new HMC feature which can adjust CPU frequency. In this article I want to describe how to speed up the POWER system box, get more performance from the system. It is very easy to overclock the machine.

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SR-IOV for POWER8 enterprise models GA

Few hours ago IBM has released the firmware which enables the SR-IOV functionality on E870/E880 servers.

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SR-IOV on POWER8 and P7+ withdrawal

  1. Feb 24th IBM finally announced SR-IOV support for enterprise POWER8 models (E870, E880).
  2. If you run workload on a MMA/MMC/MMB/MHC/MHB/595 server, and you are thinking about upgrade to a POWER8 model, you have only 9 months to go. Otherwise, you will lose your serial number!

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