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Recovery z/OS MVS Programming: Sysplex Services Guide SA23-1400-00 |
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The store-through method provides improved data availability in comparison to the store-in method because users store data to permanent storage and the cache structure simultaneously. Failure of the coupling facility or the cache structure does not result in lost data; therefore, there is less need to keep data on a non-volatile coupling facility than there is with the store-in method. |
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