Compaq ProLiant 8500 Compaq Parallel Database Cluster Model PDC/O2000 for Orac - Page 217

Troubleshooting Client-to-Cluster Connectivity Problems

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7-10 Compaq Parallel Database Cluster Model PDC/02000 for Oracle8i and Windows 2000 Administrator Guide I Make sure the OracleCMService and all other Oracle services have started without error. From the Services screen, scan the list of services and check to see if the Oracle services have started. From the Application log, check for error messages about the Oracle services. I Run Object Link Manager from each node to verify that the Oracle partitions and symbolic link associations are accurately displayed. I Verify that the node or nodes have access to the shared storage. Run Disk Management and make sure that all the shared disk resources appear as expected. If the view is not consistent across all cluster nodes, refer to Appendix A, "Diagnosing and Resolving Shared Disk Problems." Troubleshooting Client-to-Cluster Connectivity Problems A Network Client Cannot Communicate with the Cluster I Verify that the user ID has sufficient rights to perform the desired action. I Make sure proper network connectivity exists by verifying that the connections from the network client to the cluster are cabled correctly. Additionally, verify that the network routers/switches/hubs used in the client LAN are powered on and properly cabled. I Make sure that pinging an IP address over the client LAN from a client to the cluster issues a correct reply. Perform ping testing as described in the "Verifying Cluster Communications" section in Chapter 5, "Installation and Configuration." I Make sure that the TNSNames.ora file is properly configured on client and cluster nodes as defined by the Oracle Net8 Config Assistant utility. I Make sure that the Oracle TNSListener is running on the cluster nodes. From the Services screen, verify that Oracle TNSListener is started. I Make sure that the Oracle Listener files are set up on the cluster nodes by using the Oracle TNSPing utility. I Run Object Link Manager from each node to verify correct Oracle partitions and symbolic link associations. Refer to Appendix A, "Diagnosing and Resolving Shared Disk Problems," for detailed guidelines.

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7-10
Compaq Parallel Database Cluster Model PDC/02000 for Oracle8i and Windows 2000 Administrator Guide
■
Make sure the OracleCMService and all other Oracle services have
started without error. From the
Services
screen, scan the list of services
and check to see if the Oracle services have started. From the
Application log, check for error messages about the Oracle services.
■
Run Object Link Manager from each node to verify that the Oracle
partitions and symbolic link associations are accurately displayed.
■
Verify that the node or nodes have access to the shared storage. Run
Disk Management and make sure that all the shared disk resources
appear as expected. If the view is not consistent across all cluster nodes,
refer to Appendix A,
“
Diagnosing and Resolving Shared Disk
Problems.
”
Troubleshooting Client-to-Cluster
Connectivity Problems
A Network Client Cannot Communicate with the
Cluster
■
Verify that the user ID has sufficient rights to perform the desired
action.
■
Make sure proper network connectivity exists by verifying that the
connections from the network client to the cluster are cabled correctly.
Additionally, verify that the network routers/switches/hubs used in the
client LAN are powered on and properly cabled.
■
Make sure that pinging an IP address over the client LAN from a client
to the cluster issues a correct reply. Perform ping testing as described in
the
“
Verifying Cluster Communications
”
section in Chapter 5,
“
Installation and Configuration.
”
■
Make sure that the TNSNames.ora file is properly configured on client
and cluster nodes as defined by the Oracle Net8 Config Assistant utility.
■
Make sure that the Oracle TNSListener is running on the cluster nodes.
From the
Services
screen, verify that Oracle TNSListener is started.
■
Make sure that the Oracle Listener files are set up on the cluster nodes
by using the Oracle TNSPing utility.
■
Run Object Link Manager from each node to verify correct Oracle
partitions and symbolic link associations. Refer to Appendix A,
“
Diagnosing and Resolving Shared Disk Problems,
”
for detailed
guidelines.