Ross,
I was
at the Open World conference session where Jeremy Burton made the comments about
clustering, OPS, data segmentation, etc. The data segmentation part was
about MS SQLServer, and about how it creates significant work to add cluster
nodes. C|net has their terms and comments a little scrambled. The Oracle
9i solution used OPS for the instances and an EMC/SRDF SAN for the data
storage. Each OPS cluster node had full access to every piece of
data. By doing this no node is a single point of failure (as Larry
demonstrated and was chastised for by MS). Also it creates greater
capability for scalability. Just configure and add a node and it improves
performance (also part of Larry's demo). As described with the MS
federated database configuration you would need to resegment the data to add a
node. This would then destabilize the system even further by adding
another single point of failure. Failure of an OPS cluster node with the
data on a SAN with redundancy, such as the EMC/SRDF option, only decreases
performance, it doesn't kill the operation of the system.
Rodd
Holman
-----Original Message-----
From: Mohan, Ross [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 05, 2001 5:09 PM
To: Multiple recipients of list ORACLE-L
Subject: RE: OT RE: Async I/O on Windows - WHAT is a FEDERATED DATABASEVery Interesting! It appears Oracle 9i, is, in fact, a Hybrid Federated Database!
http://news.cnet.com/news/0-1003-200-2897140.html?tag=st.ne.ni.metacomm.ni
A snippet:
