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Oracle Tips by Burleson |
Oracle Installation Guidelines
As stated in the introduction to this chapter, installation of
Oracle is a complex topic. And though Oracle has automated the
process to a large extent, if you don’t have your ducks in a row
before you start, your success is doubtful. Therefore, this section
will cover Oracle installation on NT, UNIX, and Linux, and attempt
to point out the pitfalls that might trip you up on the path to a
proper installation. Note, however, that the product is growing and
changing with each release, so this information cannot, nor is it
intended to, replace the installation guides provided by Oracle.
Instead, this section is intended to provide general guidelines for
the Remote DBA who is facing installation or upgrade of the Oracle
products.
Generic Installation Issues
In any installation, whether it is on W2K, NT, UNIX, or Linux, there
are certain items that must be addressed. These include:
* Disk space availability
* Remote DBA account setup
* Training
* File layout
* Tablespace layout
* Database-specific topics
We will cover these topics in turn and, hopefully, in doing so
provide the Remote DBA with the information to arrive at logical answers to
installation questions that may arise.
Disk Space Availability
More installations are probably messed up due to disk space
availability than any other cause. Disk fragmentation doesn’t seem
to be a problem under UNIX or NT, however I do suggest you
defragment any NT system that has been in operation for extended
periods of time prior to the Oracle installation unless you are
installing to fresh disks. With most modern systems, disk space is
allocated dynamically. This means that as a file needs space, it is
granted space wherever it is available on a disk. On active systems,
where files are created, updated, and deleted or moved to different
disks, this results in fragmentation. This can result in problems
for the Remote DBA on NT systems since most aren’t provided with a disk
defragmentation tool.
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