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Oracle Tips by Burleson |
Oracle10g Grid Computing
with RAC
Chapter 15 - RAC Migration
Topics
Migration
Methodology
There are
many types of migration paths. Figure 15.1 shows the two main ones.
Figure 15.1
Main procedures to migrate to Oracle Database 10g RAC
The first
procedure involves using the existing hardware infrastructure. To use
existing hardware, we would add additional servers (nodes) to our
environment and form the cluster. Obviously, the availability of
Shared Storage is an important piece of the RAC architecture since
without it utilization of RAC is not possible.
Requirements
for Conversion
Your system
must meet the following hardware and software requirements to convert
to RAC:
-
Be able to
run a cluster file system.
-
Have the
required additional license(s) for Oracle Database 10g Enterprise
Edition with RAC.
-
Have at
least two network interface cards of at least 100 mbit/sec (preferably
gigabit or better) communication speed. One for the public and Virtual
private interface and the other for the RAC cluster interconnect.
-
Have shared
disk storage.
Let’s
examine the conversion from a single-instance to clustered
configuration first.
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