Patent ID: 8762674
Filing Date: 2014-06-24
Classification: G06F

Abstract:
1. A method for storing data by a processor device in a computing environment, comprising: identifying, from a plurality of available data segments, a data segment having an storage activity lower than a predetermined threshold as a colder data segment; determining if the data exists in the data segment to compress; locating a chunk of storage using a compression data segment bitmap to which the colder data segment is assigned; compressing the colder data segment; migrating the colder data segment to the chunk of storage; wherein a status of the chunk of storage is maintained in the compression data segment bitmap; updating the compression data segment bitmap with information representative of a logical and physical portion of the colder data segment; staging the colder data segment into cache; updating a volume segment table (VST) pointing to the colder data segment represented as a new virtual compressed data segment; and upon an input/output (I/O) operation directed to the colder data segment, performing each one of: