HP StorageWorks XP Remote Web Console Software - Manual (Page 285)

Chapter 10 Usage Scenarios 10-13
Hitachi Universal Replicator for IBM /OS User’s Guide
primary site
Black arrow indicates copy direction. If an
arrow is solid, the pair is in Duplex status.
If an arrow is dotted, the pair is in Hold
status.
URz
secondary site
M-VOL
Prm. data VOL
Tasks
Master JNL VOL
R-VOL
Restore JNL VOL
Sec. data
VOL
URz
secondary site
M-VOL
R-VOL
Prm. data
VOL
Sec. data
VOL
Master
JNL VOL
Master
JNL VOL
URz
secondary site
R-VOL
Prm. data VOL
M-VOL
Sec. data
VOL
Master
JNL VOL
TCz Sync.
TCz Sync.
TCz Sync.
UR
UR
UR
Tasks
Tasks
primary site
primary site
TCz Synchronous
secondary site
TCz Synchronous
secondary site
TCz Synchronous
secondary site
Restore JNL VOL
Restore
JNL VOL
Master
JNL VOL
Master JNL VOL
M-VOL: main volume
R-VOL: remote volume
Prm data VOL: primary data volume
Sec. data VOL: secondary data volume
JNLVOL: journal volume
Figure 10-3 Recovery from Disaster in the Primary Site (When Delta
Resync Operation is Performed)
Establishing 3DC Delta Resync Operations
This section describes and provides instructions for establishing URz 3DC delta
resync operations using Storage Navigator.
Figure 10-4 shows the required configuration for the 3DC delta resync
operations described in this section.