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

Chapter 2
Data Replication Manager Concepts
This chapter explains Data Replication Manager concepts for configuring a Data
Replication Manager solution. These include: Remote Copy Sets and Association Sets.
The topics contained within this chapter are:
■ “Remote Copy” on page 2–2
❏ “Remote Copy Sets” on page 2–2
❏ “Operation Modes” on page 2–3
❏ “Outstanding_IO Settings” on page 2–4
❏ “Suspend/Resume” on page 2–5
❏ “Error Mode” on page 2–6
■ “Association Sets” on page 2–6
❏ “FAIL_ALL” on page 2–7
❏ “Write History Logging” on page 2–8
❏ “Log Unit” on page 2–9
❏ “ORDER_ALL” on page 2–10
❏ “Failover” on page 2–10
❏ “Failback” on page 2–11