International Business Machines Corporation

Alex S Howell

Muhammad Zubair

William James Scales

Eric John Bartlett

A method, apparatus or software is disclosed for transferring storage replication system configurations between heterogeneous storage systems. Storage replication system configuration data for a source storage system is translated from a source form into a canonical form for representing a storage replication system. A set of configuration commands are determined for implementing the storage replication system configuration data on a target storage system based on the canonical form of the translated storage replication system configuration data. The storage replication system is transferred from the source storage system to a target storage system, the configuration commands being used to configure the storage replication system on the target storage system.

Method, apparatus or software for transferring a storage replication system between storage systems

A method, apparatus or software is disclosed for transferring storage replication system configurations between heterogonous storage systems.

Input/output (I/O) I/O target selection is achieved within a data storage system having clustered nodes of initiators, I/O targets, and grouped storage logical units. A state definition component defines access states for each combination of one or more combinations of a node, an I/O target, and a storage logical unit. A profiler component produces an access state profile for each I/O target. A rank criteria compiler compiles rank criteria as a basis for best-fit identification of I/O targets for a logical unit (LU) group. A best-fit identifier is responsive to the profile component and the rank criteria compiler and identifies a ranked best-fit order of I/O targets for an LU group. A target selector selects an I/O target for an LU group from the ranked best-fit order.

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Winchester, United Kingdom

Alex S Howell