As an advocate on database virtualization, I often challenge customers to consider if they are using their resources in an optimal way. And so I usually claim, often in front of a skeptical audience, that physically deployed servers hardly ever…
Oracle snapshots and clones with ZFS
Another Frequently Asked Question: Is there any disadvantage for a customer in using Oracle/SUN ZFS appliances to create database/application snapshots in comparison with EMC’s cloning/snapshot offerings? Oracle marketing is pushing materials where they promote the ZFS storage appliance as the…
Data Guard protecting from EMC block corruptions?
Today I was giving a training to fellow EMC colleagues on some Oracle fundamentals. One of the things that was mentioned is something I have heard several times before: Oracle is claiming that EMC SRDF (a data mirroring function from…
POC: Piece Of Cake or Point Of Contradiction?
Every now and then I get involved in Customer Proof of Concepts. A Proof of Concept (POC) is, according to Wikipedia, something like a demonstration of feasibility of a certain idea, concept or theory.
Data Guard or Storage based replication?
A comparison between Oracle (Active) Data Guard and EMC replication for disaster recovery purposes This is an article I wrote a while ago for customers’ Database Administrators (DBAs) and application managers, that helps them in selecting the right Disaster Recovery…