International Business Machines Corporation

Franklin E Mccune

David C Reed

Thomas C Reed

Michael Robert Scott

Derek Logan Erdmann

Eric J Harris

Gregg Leonard Liguori

Provided are a computer program product, system, and method to determine whether a holding of a lock to the resource by a first task satisfies a condition and whether the lock is swappable. The lock is released from the first task and granted to a second task waiting in a queue for the lock in response to determining that the holding of the lock satisfies the condition and that the lock is swappable. The first task is indicated in the queue waiting for the lock in response to granting the lock to the second task.

Determining when to release a lock from a first task holding the lock to grant to a second task waiting for the lock

A computer-implemented method according to one embodiment includes intercepting one or more updates made to a catalog data set, storing the one or more updates in an update buffer, retrieving the one or more updates from the update buffer, sequentially applying the one or more updates to a backup catalog data set, identifying a request to replace the catalog data set, and replacing the catalog data set with the backup catalog data set, in response to the request.

Catalog backup and recovery using logical mirroring

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Tucson, AZ, United States of America

Franklin E Mccune