Initial copy workflow

ShadowImage User Guide

Part Number

Initial copy is performed when you create a copy pair. Data on the P-VOL is copied to the S-VOL for the initial copy using the following workflow.

The storage system goes through the following workflow to create an initial copy:

  1. The S-VOLs are not paired. You create the copy pair.
    Note: The storage system accepts read/write for unpaired volumes.
  2. The initial copy is in progress (COPY(PD)/COPY status). The storage system copies the P-VOL data to the S-VOL.
  3. The initial copy is complete and the volumes are paired (PAIR status).
    Note: Data consistency is not ensured for SI pairs in PAIR status.

A P-VOL continues receiving updates from the host during the initial copy.