Compaq ProLiant 6500 Compaq Parallel Database Cluster Model PDC/O1000 for Orac - Page 160

Appendix A: Diagnosing and Resolving Shared Disk Problems, Introduction

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A Appendix Diagnosing and Resolving Shared Disk Problems Introduction When one or more nodes in a Compaq Parallel Database Cluster Model PDC/O1000 (referred to here as the PDC/O1000) cannot properly join the cluster, you need to consider two possible causes: I A problem related to the shared disk storage in the cluster's Compaq StorageWorks RAID Array 4000s (RA4000 Arrays) or Compaq StorageWorks RAID Array 4100s (RA4100 Arrays) is preventing one or more nodes from accurately viewing or successfully accessing the available shared storage resources. I A connectivity problem exists either within the cluster interconnect or the client LAN, preventing one or more nodes from communicating with the other nodes or preventing a client from communicating with the cluster. This appendix describes the procedures you should follow to diagnose and resolve suspected shared disk problems in a PDC/O1000.

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Appendix
A
Diagnosing and Resolving Shared Disk
Problems
Introduction
When one or more nodes in a Compaq Parallel Database Cluster Model
PDC/O1000 (referred to here as the PDC/O1000) cannot properly join the
cluster, you need to consider two possible causes:
■
A problem related to the shared disk storage in the cluster’s
Compaq StorageWorks RAID Array 4000s (RA4000 Arrays) or
Compaq StorageWorks RAID Array 4100s (RA4100 Arrays) is
preventing one or more nodes from accurately viewing or successfully
accessing the available shared storage resources.
■
A connectivity problem exists either within the cluster interconnect or
the client LAN, preventing one or more nodes from communicating with
the other nodes or preventing a client from communicating with the
cluster.
This appendix describes the procedures you should follow to diagnose and
resolve suspected shared disk problems in a PDC/O1000.