IBM System storage DS6000 Series Redbook page 412

When Global Mirror cannot complete replicating all outstanding data within this time
window, then the process to form a new Consistency Group fails. After five contiguous
failures due to this condition, Global Mirror will force the formation of a new Consistency
Group independent of how long it takes to replicate all remaining data from the primary to
secondary volumes. See also 22.4, "Consistency Groups" on page 260.
Click Next to proceed with the third and last step of this wizard. The creation wizard then
displays the Verification panel; see Figure 26-31.
In this panel, verify all the components of your Global Mirror session configuration and, if
necessary, click Back to correct any of them, or click Finish to validate.
Figure 26-31 Global Mirror creation step 3 - verification
To visualize the status of the Global Mirror session, go to the Global Mirror panel under the
Copy Services menu of DS Storage Manager GUI. Select from the pull-down lists the
Storage complex , then the Storage unit , then the Storage Image , which is the Master
Global Mirror session, and wait until the screen is refreshed. If it is necessary, click Refresh
to refresh the panel. See Figure 26-32.
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IBM System Storage DS6000 Series: Copy Services with IBM System z