TCz Synchronous

 

secondary site

primary site

TCz Sync.

Tasks

R-VOL

 

 

Master

 

JNL VOL

M-VOL

URz

Prm. data VOL

Master JNL VOL secondary site

UR

Sec. data

 

 

VOL

 

Restore JNL VOL

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.

M-VOL: main volume

R-VOL: remote volume

Prm data VOL: primary data volume

Sec. data VOL: secondary data volume

JNLVOL: journal volume

TCz Synchronous secondary site

 

 

Tasks

 

primary siteTCz Sync.

 

 

 

R-VOL

Master

 

 

Prm. data

 

 

VOL

JNL VOL

M-VOL

 

URz

 

 

 

 

 

Master

secondary site

 

 

 

 

JNL VOL

 

 

 

 

UR

Sec. data

 

 

 

VOL

Restore

JNL VOL

TCz Synchronous secondary site

 

Tasks

 

 

primary site TCz Sync.

 

 

 

M-VOL

Master

 

 

 

 

JNL VOL

R-VOL

URz

 

 

Prm. data VOL

 

UR

Master JNL VOL

secondary site

 

Sec. data

VOL

Restore JNL VOL

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.

Chapter 10 Usage Scenarios

10-13

Hitachi Universal Replicator for IBM /OS User’s Guide

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Image 285
Hitachi MP-96RD625-01 manual Establishing 3DC Delta Resync Operations, Primary site