System, method and computer program product for optimization of tape performance

摘要

A tape performance optimization method may include accumulating data in a memory, monitoring the accumulation of data, determining whether a certain amount of data has been accumulated in the memory, and causing the accumulated data to be migrated to a tape in a tape library. In one embodiment, the amount of data to be accumulated is set to be two wraps or a multiple thereof. Using embodiments, it can take zero or near zero time to rewind the tape when unloading occurs, eliminating wasted tape movement time and significantly increasing tape performance. In one embodiment, the accumulation of data may be terminated even if the desired amount of data has not been accumulated. In one embodiment, the termination might be triggered by a timeout condition.

主权项

1. A method for optimizing tape performance when writing data to a file system, comprising:
in response to a command to copy data to a file system mounted on a tape in a tape library, accumulating, by an interface device between one or more networks and the tape library, data in a memory of the interface device until there is a sufficient amount of data to write two wraps of tape or a multiple of two wraps of tape; and migrating the data accumulated in the memory to the file system mounted on the tape in the tape library.