Clone a PowerHA node from another

First, this is NOT, an officially supported process so use at your own risk. Backstory. I had a customer that corrupted their rootvg contents on their standby node after loading some additional packages and application updates. Trying to remove corrupted some libraries. Unfortunately they did not clone or create a mksysb prior to performing these actions. So we created a clone from their primary PowerHA node. Also know that prior to creating the clone, you can either enable the ghostdev parameter or use the "-O" flag when creating the clone to make it forget about things like hostname,ip, vgs, etc as shown in the video Note in this case the standby node was still up and running we just needed to [...]

Disabling telnet in AIX or VIOS

Disabling telnet, and ftp for that matter,  is a very common procedure because of their inherit security flaw(s). In a nutshell it requires commenting them out in /etc/services by putting a # in front of the corresponding line. Then update inetd by running refresh -s inetd. So I put together this quick little video to demonstrate. In this one it happens to be on a VIOS.

JVM memory bug in HMC V9R2M950

We had a customer run into this bug. Their HMC has 7 POWER9 Managed systems and 150 LPARs with Simplified Remote Restart enabled. This is resulting in rebooting the HMC about every 10 days while on Details below came from the following link. So always check the link for updated information. Problem Navigating the HMC Enhanced UI can result in the page displaying the following messages: Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request GET /ui/sfp/. Reason: Error reading from remote server Symptom The HMC Enhanced UI becomes unusable soon after a reboot of the HMC with only a few hours or a few days of run time.  [...]

Building the Business Case for SAP HANA

Before a company can make the transition to SAP HANA, the business value must be demonstrated to leadership. Business leadership is trying to understand the HANA journey. Today’s environment is most likely on-premises. Companies are trying to decide between new implementation, conversion, and a hybrid approach. Demonstrating business case needs doesn’t just involve providing numbers. The business case articulates what you have, how you use it, and what needs to change. These needs should be revisited frequently. Understanding how to get there will change, and the cost will change. Leadership will want to know about the business impact of cost estimates for the move to SAP HANA and the potential benefits. The Process of Building the Business Case Process change is [...]

Benefits of Functional & Technical Assessments for SAP HANA

The SAP HANA journey is made up of an assortment of parts. It’s like breaking out the instructions and trying to put a toy together for Christmas. You have a choice of SAP and third-party tools to help you understand your options. Assembling the details and distilling facts is something that the business and IT must perform together. SAP tools are an integral component of the journey, whether before getting started or during implementation and runtime. You need the data to tell you which approach to implementation to take: Greenfield, Brownfield, or Bluefield. Are you going for a new implementation, conversion, or hybrid approach? You also have options of where to host: on-premises, public cloud, private cloud, or hybrid. A Technical [...]

SAP HANA Implementation Approach Options

Understanding the SAP HANA implementation approach options will help your company avoid costly mistakes. Thoroughly evaluating the different options available will help your company make informed business decisions during each phase. Part of building a business case for SAP HANA is deciding on an implementation approach. There are 3 options to explore so you can understand them and make the right choice. Key considerations in choosing an implementation option include: who should determine the approach, the impacts to the business and to IT of selecting one approach over another, the critical differences between approaches, and what SAP says about the selection process. SAP Big Picture Traditional SAP ECC customers are asking how they can get to SAP HANA. SAP HANA is [...]

Go to Top