Have you ever wonder if a LUN delivered from an external storage to your IBMi Lpar is thin provisioned,encrypted or provisioned thru SSD, you can do it from IBMi. Read below about hidden SST macro.
Continue reading “How to check LUN properties delivered to IBMi”
Not sure if there is anyone in IT world who has not heard about latest vulnerabilities in the modern chips. In this post I cover performance impact caused by fixes on IBM Power Systems and and IBM i OS.
Continue reading “(Updated) Meltdown & Spectre performance impact on IBMi and IBM Power Systems”
Finally this is happening! After all these years I’ve been given an opportunity to speak, present, teach others about technologies where I find myself very confident and have experience which should be shared among the community. I will be a speaker at IBM Technical University
Continue reading “IBM TechU Prague 2017 – finally as a speaker”
I would like to share my experience from implementing and configuring the feature of PowerHA – The Administrative Domains. This functionality allows synchronization of specific objects stored on the SYSBAS. It should be used in conjunction with an iASP based solution. Thus, if you don’t use the iASP, you will not find the Administrative Domain useful.
I just came back from vacation and I’m shocked with the information that the development of key IBM i products: BRMS, PowerHA for i, IBM Rational Developer for i (RDi) and L3 support are moved to HelpSystems.
Continue reading “IBM give away BRMS, POWERHA and RDi to HelpSystems”
Few weeks ago I had a chance to test VTL functionality on StoreOnce devices in conjunction with IBM i. HP StoreOnce is pretty new product and I know that a lot of people is waiting for some information ‘from the field’. This is my short summary.
Do you know that by using Workload Capping you can reduce license costs on IBM i Lpar? Continue reading “Workload capping – reducing license costs on IBMi”
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.
Continue reading “Use link aggregation instead of VIPA on IBM i”
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. Continue reading “POWER8 – No hardware maintenance-no firmware upgrade”
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. Continue reading “IBM i lpar crashed duo to Dynamic Platform Optimizer”
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