Troubleshooting
Problem
When using Global Mirror with Change Volumes, ensure that the relationship is stopped before attempting to perform read I/O to the secondary volume, either from a host or by starting a FlashCopy. This will ensure that the data read from the secondary volume is consistent.
Resolving The Problem
This restriction applies to 6.3.0.x software levels only. Version 6.4.0.0 and later provide a consistent image on the secondary volume while the relationship is in the 'consistent_copying' state, removing the requirement to stop the relationship before performing read I/O.
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Document Information
Modified date:
28 March 2023
UID
ssg1S1003947