Managing sequentiality of tracks for asynchronous PPRC tracks on secondary

摘要

For performing efficient management of tracks in an asynchronous Peer-to-Peer Redundant Copy (PPRC) operation in a computing storage environment, a correct status of a sequential bit is determined by performing one of: (1) examining a primary cache, where if data being transferred pursuant to the PPRC operation in a primary track remains in the primary cache, the sequential bit setting found therein is used, and (2) an Out-Of-Sync (OOS) bitmap is examined to determine if the sequential bit is set.

主权项

1. A method for performing efficient management of tracks in an asynchronous Peer-to-Peer Redundant Copy (PPRC) operation in a computing storage environment by a processor device, comprising:
determining a correct status of a sequential bit by performing:
examining a primary cache, wherein if data being transferred pursuant to the PPRC operation in a primary track remains in the primary cache, using the sequential bit setting found therein, andexamining an Out-Of-Sync (OOS) bitmap to determine if the sequential bit is set.