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.
- Feb 24th IBM finally announced SR-IOV support for enterprise POWER8 models (E870, E880).
- 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!
It’s been a year since I started the blog. Here are the most important facts after first year.
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
If you click on View Management Console Logs, you are going to see the log.
October 6th IBM introduced two new enterprise servers. Let me briefly highlight the most important features.
Last weeks I spent in IBM Austin, where I worked on another Redbook related to new servers.
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.
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.
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.
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.