RE: looking for tool to help consolidate Oracle schemas within Oracle instances and Oracle instances on AIX servers
- From: DENNIS WILLIAMS <DWILLIAMS@xxxxxxxxxxxxx>
- To: "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 20 Apr 2004 08:58:55 -0500
Jaco
What are the benefits you hope to achieve by consolidating schemas within
an instance? I can see several potential problems, especially if these are
vendor-supported applications. It may be difficult to upgrade to new Oracle
versions because different vendors will provide support for a new Oracle
version at different times. Another issue is that each schema may support a
different group of users, and one group of users may be eager to move to a
new Oracle version while another group of users doesn't see this as a
priority. After years of trying to consolidate schemas as much as possible,
I've tended to go the opposite direction in recent years.
Dennis Williams
DBA
Lifetouch, Inc.
dwilliams@xxxxxxxxxxxxx
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of J.Polet@xxxxxxxxx
Sent: Tuesday, April 20, 2004 3:21 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: looking for tool to help consolidate Oracle schemas within
Oracle instances and Oracle instances on AIX servers
Hi all,
I am currently working on a consolidation project.
Within this project we want to consolidate Oracle schemas within Oracle
8.1.7.4/ 10g instances and Oracle instances on AIX 5.2 servers.
We see 3 potential problems:
1. How do we prevent instances and schema's influencing each others
performance?
2. How do we determine which schemas can be consolidated within the same
instance from a resource usage point of view?
3. How do we determine which instances can be consolidated on the same
server from a resource usage point of view?
To address our first problem we are looking at the Oracle Resource Manager
for controlling the resource usage of schemas within the same instance and
AIX Workload Manager to control resource usage of instances on the same
server.
For our second and third problem we want to create a shortlist of 3
(combination of) tools to evaluate which should be able to:
- Measure the usage of instance resources like buffer cache, redo/undo
blocks, open cursors etc. on a schema level.
- Measure the available instance resources within an instance
- Measure the usage of server resources (CPU, Memory, Disk IO, Network IO)
on a schema level and on an instance level.
- Measure the available server resources within a server
Does anyone has an idea of which (combination of) tools I should put on
this shortlist?
Thanks... Jaco
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