International Business Machines Corporation

Johnny David

Afief Halumi

Lior Tamary

Asaf Levy

Yariv Bachar

Elez Shenhar

For deduplicated data processing hierarchical rate control in a data deduplication system in a computing storage environment, priorities in a hierarchal structure are propagated by defining a relationship between each of a plurality of maintenance tasks and using a resource distribution function for managing and dividing resources between the plurality of maintenance tasks based on a priority for each maintenance task. Each one of the plurality of maintenance tasks is defined to be one of above, below, and at a same level in the hierarchal structure as compared to another one of the plurality of maintenance tasks. The hierarchal structure comprises a tree structure having a plurality of leaf nodes that are actual task and branch nodes that are virtual tasks.

Deduplicated data processing hierarchical rate control in a data deduplication system

For deduplicated data processing hierarchical rate control in a data deduplication system in a computing storage environment, priorities in a hierarchal structure are propagated by defining a relationship between each of a plurality of maintenance tasks and using a resource distribution function for managing and dividing resources between the plurality of maintenance tasks based on a priority for each maintenance task.

A management of capacity types with different consumption policies for an object in a computing storage system is performed by updating a reference type bitmap in a segment-fragment table containing segments that reference fragments upon the creation of a segment for an object. A reference is created in an object-segment reference table, between the object and the segment, in compliance with a consumption policy upon the creation of one of the segments for the object. The reference types that reference the segment are removed upon deletion of the segment.

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Tel Aviv, Israel

Johnny David