Hitachi VSP G400 System Administration Guide

Glossary
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2DC
two-data-center. Refers to the local and remote sites, or data centers, in
which TrueCopy (TC) and Universal Replicator (UR) combine to form a
remote replication configuration.
In a 2DC configuration, data is copied from a TC primary volume at the
local site to the UR master journal volume at an intermediate site, then
replicated to the UR secondary volume at the remote site. Since this
configuration side-steps the TC secondary volume at the intermediate
site, the intermediate site is not considered a data center.
3DC
three-data-center. Refers to the local, intermediate, and remote sites, or
data centers, in which TrueCopy and Universal Replicator combine to form
a remote replication configuration.
In a 3DC configuration, data is copied from a local site to an intermediate
site and then to a remote site (3DC cascade configuration), or from a
local site to two separate remote sites (3DC multi-target configuration).
A
array
See disk array
audit log
Files that store a history of the operations performed from Device
Manager - Storage Navigator and the commands that the storage system
received from hosts, and data encryption operations.
Glossary 387
System Administrator Guide for VSP Gx00 models and VSP Fx00 models

Hitachi VSP G400 Specifications

General

Brand	Hitachi
Model	VSP G400
Category	Storage
Language	English