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primary siteTCz Sync. |
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| JNL VOL |
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URz |
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Master JNL |
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| VOL |
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| UR | Sec. data |
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| Restore | VOL |
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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.
Prm data VOL: primary data volume
Sec. data VOL: secondary data volume
JNLVOL: journal volume
TCz Synchronous secondary site
primary site TCz Sync.
Tasks
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URz | |||
Prim. data VOL | |||
secondary site | |||
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Master JNL |
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VOL |
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Figure 3-28 Transferring Business Tasks from the TCz Secondary Site to the Primary Site (When Delta Resync Operation is Performed in 3DC Multi-target Configuration)
Recovering from Failures in the Primary Site and the TCz Synchronous
Secondary Site
If a disaster or failure occurs in both the primary site and the TCz Synchronous secondary site in a 3DC
Chapter 3 Preparing for Universal Replicator z/OS Operations |