Recently I rewrote the backend for my service, Any New Books, due to an Amazon API change. Generally speaking, rewriting an entire codebase is a bad idea. However, the code was quite old and the API changes rather drastic, so I took the opportunity to rewrite the...
Smartphones have gotten so advanced today that it can almost be hard to tell the difference between the top options. That’s not to say you’d literally mix up an iPhone and its Samsung counterpart — but there aren’t too many defining features that really set one apart...
Not long ago, a Db2 for z/OS administrator contacted me with a request. His team had made some changes to the buffer pool configuration in their production Db2 environment (the overall size of the buffer pool configuration was increased to reduce read I/O activity,...
Db2 12 is classified as an in-memory data base by Gartner. It is not just a simple in-memory data base but a very smart one. In this paper, we explain one of the most innovative in memory optimizations in Db2 12. Why In-Memory Optimization in Index? The...
I love hearing about Blockchain; if you are involved in Fintech, then surely by now you have heard a lot about it, and that it holds a tremendous amount of promise for Internet business. Fundamentally, it guarantees the validity of a transaction. Blockchain is a...
Anyone who has been working on mainframes for any length of time knows that things are always changing. Many people can remember when DB2 was new (1983), the client-server period, and the need for Service-Oriented Architecture (SOA). And, I’m sure, can come up with a...
I was at a regional CMG meeting in Raleigh, North Carolina, giving a presentation on Big Data to a group of about forty Capacity Planners (big turnout for North Carolina a week after Hurricane Matthew hit). The group was interested in understanding the impact the...
DB2 z/OS V12 is in the Early Support Program mode. This means the larger Independent Software Vendors (BMC, CA, Compuware, etc.) have a version of DB2 z/OS V12 in house so they can modify their products to support and/or exploit the new features of DB2 z/OS V12. This...
Business transformation and agility are critical in today’s fast moving world. Clients demand insights faster, more often, and with greater accuracy based on up-to-the-second transactional data that is frequently housed in mainframe systems. The dependency on...
When asked what is the single most important or stressful aspect of their job, DBAs typically respond “assuring optimal performance.” Indeed, a Forrester Research survey of critical DBA concerns indicates that performance and troubleshooting tops the list of most...
