作者: Gregory E. McBride , Miguel A. Perez , Dash D. Miller , David C. Reed
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摘要: Provided are a computer program product, system, and method for using mirror indicators to determine whether tracks in data set primary volume mirrored secondary volume. A table is read. The maintained by controller managing the that includes indicator each of plurality at least one configured indicating track be Record sets read from cache having mirrored. write record applied mirroring