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4.2 Shadow Copy Creation

The following diagram illustrates the protocol message sequence for committing a shadow copy set on the server.

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Figure 3: Message sequence for committing a shadow copy set

  1. The client calls CommitShadowCopySet (Opnum 4) to commit a shadow copy set.

  2. The server processes the method and returns ZERO.

  3. The client calls ExposeShadowCopySet (Opnum 5) to wait synchronously to expose all the shadow copies in a shadow copy set as file shares.

  4. The server processes the method and returns ZERO.

  5. The client calls GetShareMapping (Opnum 10) for each share in the shadow copy set to get the shadow copy information.

  6. The server processes the method and returns ZERO.

  7. The client finishes recovery work on the writeable shadow copy and calls RecoveryCompleteShadowCopySet (Opnum 6) to indicate to the server that the data associated with the file shares in a shadow copy set has been recovered by the VSS writers.

  8. The server processes the method and returns ZERO. At this time, shadow copy creation is complete and the shadow copy is sealed as read-only.

 
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