Compaq StorageWorks Data Replication Manager HSG80 ACS Version 8.5P Operations Guide

Chapter 6
Troubleshooting
This chapter describes possible failure modes of a Data Replication Manager solution.
Isolation of errors and detailed error analysis require a complete understanding of how a
Data Replication Manager subsystem operates. While it is not possible to document every
error and failure condition, key failures of the Data Replication Manager subsystem and
its components are discussed.
Troubleshooting information on specific Data Replication Manager components can also
be found in their respective user manuals.
This section contains the following topics:
■ “HSG80 Array Controller Operating Characteristics” on page 6–2
❏ “Forced Errors Detected During Copy” on page 6–2
❏ “Read Errors Detected During Full Copy” on page 6–2
❏ “Dual Redundancy During Failback” on page 6–3
❏ “Failsafe Lock Management” on page 6–3
❏ “Link Failure Management” on page 6–3
❏ “Remote Copy Set Member Failures” on page 6–3
❏ “Remote Copy Set Worldwide LUN ID” on page 6–4
❏ “Write History Logging” on page 6–4
❏ “Failure Notification” on page 6–5
❏ “HSG80 Array Controller Failure” on page 6–5
❏ “SWCC Failure” on page 6–6