G stands for GRID (because im curious with 10G)

Grid, the word came from the GRID ELECTRICITY analogy, when we need power electricity to make our tools , server, tv , etc works, we simply connect them to electric outlet without have to know where the electricity came from (without have to know from which generator the electricity came)

When IT Resources(hardware or software) needs resources like database, CPU or other resources, this IT Resource can easily have it like our tools, tv , etc needs electricity(just plug in to electric outlet). The point is, user who is using GRID, doesnt have to know where the data reside or from which server that process the request, they only have to know the resource they request is available and can be used. Next will be RAC (Real Application Cluster) in my Data Center, user using resources have extra availabilty and performance like load balancing CMIIW)

And for administrator, they can monitor these small resources likes a single entity that can be simply manage.

So that IT resource can communicate with other IT Resource, it needs standard, protocol and interface. That why SOA(Service Oriented Architecture) on developing IT became important, because of there so many differents IT resources with different protocol,standard and interface. This make problem for huge organization with huge IT resource with differents architecture to communicate each other and to integrate them.

The idea writing this posting, because of one Oracle 10G feature, Real Application Cluster(RAC) where in one single physical database consist of from 2 or more Oracle Instances where from that instances can communicate and share data. What makes me interested that these instances can be manage like we manages single database entity.

GRID in term of computer science defined as " A computational GRID is a hradware and software infrastructure that provide dependable ,consistent,pervasive, and inexpensive access to high-end computational capabilities". That definition from Fosster and Kessellman.

Yeah next will be all cluster, after hot backup(later i will write about this topic : hot backup and cold backup for Oracle), more performance and more availability.