IBMi.org – Bart's blog

IBM i and PowerVM features and tools

Category Archives: Hardware

Blog anniversary and other hot topics

It’s been a year since I started the blog. Here are the most important facts after first year.

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How to display the HMC iqyylog.log

In this post I give you a hint how to display a log which is usually used by IBM support to identify a serious hardware error. Such information usually can be found in HMC log called iqyylog. Usually, when you get that kind of hardware error, you involve IBM support. Very likely, they will ask for PE debug data. There is a way how to display the log by yourself. Remember, such information is very technical. But maybe you find it useful.

  • First, you need to create the hscpe account on the HMC (if you haven’t done it). You can find the process here.
  • Log in to the HMC GUI under hscpe account.
  • In the Service Management menu you find three new options available

three_options

If you click on View Management Console Logs, you are going to see the log.

Power E870 & E880 – my few words (update)

October 6th IBM introduced two new enterprise servers. Let me briefly highlight the most important features.

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Redbook residency – Austin september 2014

Last weeks I spent in IBM Austin, where I worked on another Redbook related to new servers.

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Building multiple LPARs with dedicated I/O from the CLI

Hi,

Nowadays, I’m preparing for huge hardware delivery. I’m about to get dozen of MMD’s. The challenge is to configure them (LPAR profiles, VIOS, etc) as soon as possible. I found the way how to automate creation of multiple VIO/LPAR profiles including I/O configuration for multiple servers without knowing SN of the expansions drawers.

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Monitor CPU, POOL utilization from PHYP cycles on POWER8

One of the most popular post on my blog, is the one about monitoring a CPU by CPU cycles dispatched by a POWER Hypervisor link.

With POWER8 we receive new attributes in lslparutil command.

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CAPI on POWER systems

One of the biggest and the most spectacular news which I’ve experienced on my last residency, was the completely new technology called  Coherent Accelerator Processor Interface (CAPI). I was in big shock after a meeting with with the project leader. It sound for me as the holy grail for all I/O bandwidth and latency problems.

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SR-IOV technology on POWER – my few words

Finally the announcement day arrived. POWER8 and SR-IOV have been introduced to the world, and I can share my experience from my last residency.

Single Root I/O Virtualization are not new adapters, but this is a new technology, standard, specification. In fact, it uses adapters which are on the market for some time already. Specification allows to get a slice of a physical adapter and assign it an LPAR. This feature requires a proper hardware, firmware, and all elements around it.

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Redbook residency – Austin 2014

Few days ago, I came back from IBM in Austin. It was my first time in Austin, homeland of POWER systems, chips, AIX and PowerVM development, but third residency in general. Read more of this post

IBM i with external storage – support matrix

If you wonder what external storage can be directly attached to an IBM i, please check a document at the bottom. Read more of this post