There is a new way to think about data warehouse architecture. The Gartner Group calls it a logical data warehouse and it uses database federation to dynamically integrate a universe of data warehouses, operational data stores, and data marts into a single, united, structure. This blog has suggested that there is a special case of the…
In this post we will consider again the implications of implementing a shared-nothing architecture in the cloud. That is, we will start wondering about how to extend a static shared-nothing cluster deployed into an elastic hardware environment. This is the first of three posts inspired by a series of conversations with the folks at Bityota (Bityota.com). After…
Yesterday I provided a model for how business sees open source as a means to be profitable (here). This is the game Pivotal seems to be playing with their release of Hadoop, Gemfire, HAWQ, and Greenplum into open source. I do not know their real numbers… so they may need more or fewer additional customers than…
This post is more about the technology business than about technology… but it may be relevant as you try to sort out winners and losers… and this sort of sorting is important if you consider new companies who may, or may not, succeed in the long run. To make my point let us do a…
Here are some quick thoughts on Oracle 12c… First, I appreciate the tone of the announcements. They were sober and smart. I love the pluggable database stuff. It fits into the trends I have discussed here and here. Instead of consolidating virtual machines on multi-core processors and incurring the overhead of virtual operating…
David Linthicum suggests here that Shadow IT is not all a bad thing. He references a PricewaterhouseCoopers study that suggests that 30% of all IT spending comes from the business directly… from outside of the IT budget. In the data warehouse space we can confirm these numbers easily. Just google on “data mart consolidation”…
In the previous blogs on this topic (Part 1, Part 2, Part 3) I suggested that: Shared-nothing is required for an EDW, An EDW is not usually under-utilized, There are difficulties in re-distributing sharded, shared-nothing data to provide elasticity, and A SAN cannot provide the same IO bandwidth per server as JBOD… nor hit the…
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