Chapter 10. Copy services 633
If a host accesses the volume on the Metro Mirror target site, all read and write requests can
be forwarded to the I/O group that acts as the Metro Mirror source volume, as shown in
Figure 10-159. All host-related traffic must be handled from the remote I/O group, which
increases the long-distance data traffic.
Figure 10-159 Data flow from the “wrong” site
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