Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide

Diagnosing and Resolving Shared Disk Problems A-3
Compaq Confidential – Need to Know Required
Writer: John Blackburn Project: Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide Comments:
Part Number: 225082-002 File Name: i-appa Diagnosing Shared Storage.doc Last Saved On: 6/13/01 10:31 AM
Run Object Link Manager on All Nodes
Object Link Manager simplifies the creation and maintenance of symbolic
links between disk partitions and Oracle data files by placing the symbolic link
names directly onto the disk partitions, thereby tracking the symbolic links
dynamically. This means that if the order in which disk drives are brought
online changes, Oracle8i Server can find the correct data files and can properly
start the Oracle database.
Object Link Manager also provides a detailed view of the Oracle partitions and
their symbolic link associations in the cluster’s shared storage.
To view the shared storage information from Object Link Manager, perform
these tasks:
1. From each node, run the GUI associated with Object Link Manager.
2. Verify that it runs properly and displays no errors. If necessary, use the
online help facility to assist you in your navigation of Object Link
Manager.
3. Verify that Object Link Manager can see all Oracle partitions and their
symbolic link associations and that this view is consistent across all
nodes.
4. Repeat steps 1 through 3 on all other nodes in the cluster.
5. If Object Link Manager does not run properly or displays incorrect
Oracle partition and symbolic link information on one or more nodes,
proceed to “Restart All Affected Nodes in the Cluster” in this appendix
for further instructions.
For instructions on installing and using Object Link Manager, see the readme
file:
\Object Link Manager\readme.txt
This file is located on the Compaq Parallel Database Cluster Clustering
Software for Oracle8i on Microsoft Windows 2000 CD.