Oracle 10g RAC
Below is a list of the new features:
-
New concept of Service Registration, which
aims at helping high availability from the
application point of view
-
Cluster Ready Service
(CRS)
-
Oracle Cluster Registry
(OCR) for maintaining the configuration information
-
Enhancements regarding tools supporting RAC
administration – DBCA, SRVCTL, DBUA and
Enterprise Manager
-
Virtual IP Configuration
for a better high availability configuration for
the application access
-
Limited Rolling upgrade with opatch
tool
-
Better Workload Management and alignment
with Oracle Database Resonance Utility with
dynamic provision of the nodes in the
cluster
-
Web-based Enterprise Manager Database
Control with which one can manage a RAC
database and Enterprise Manager Grid Control
for administering multiple RAC databases
-
The Automatic Workload Repository
(AWR) to track the performance metrics and provide
advice and alerts
Oracle 11g RAC
-
Oracle 11g RAC parallel upgrades
-
Oracle RAC load balancing advisor
-
ADDM for RAC (provides cross-node
advisories)
-
Interval Partitioning
-
ADR (ADRCI) command-line tool (example
below)
$adrci
adrci> set editor
vi
adrci> show alert ( it will open alert in
vi editor )
adrci> show alert -tail ( Similar
to Unix tail command )
adrci> show alert
-tail 200 ( Similar to Unix Command tail -200 )
adrci> show alert -tail -f ( Similar to Unix
command tail -f )
adrci> show alert -P
"MESSAGE_TEXT LIKE '%ORA-%'"
-
Optimized RAC cache fusion
protocols
-
Oracle 11g RAC Grid
provisioning -
the Oracle grid control provisioning pack
allows one to "blow-out" a RAC node, without
the time-consuming install, using a
preinstalled "footprint".
-
Hot patching
-
Quick Fault Resolution
Future of Utility and On-Demand Computing
Utility computing and on-demand computing are
here to stay.
A May 18, 2008 new datacenter press
release from Oracle indicates this.
"Oracle is committed to providing our customers
with the highest-level of service, and this new
facility in
Utah
will allow us to support our growing On Demand
business, as well as the technology
infrastructure to support our research and
development and customer service requirements."
Conclusion
The ability of grid computing to perform higher
throughput computing, distributing process
execution across a parallel infrastructure,
brings power—massive computing power—to the
people.
This chapter gave an introduction to grid
computing and its components as well as showing
how Oracle is ahead of the game in offering this
feature.
NOTE: Rampant author Laurent Schneider has some
additional insight into
creating an Oracle Automatic Diagnostic
Repository (ADR).
