Abstract: A secondary storage controller receives metadata that uniquely identifies a source volume of a primary storage controller. Data stored in the source volume of the primary storage controller is synchronously copied to a target volume of the secondary storage controller. The secondary storage controller receives a command from a primary host to write selected data to the source volume. In response to receiving the command at the secondary storage controller, the selected data is written to the target volume of the secondary storage controller.

Abstract: A secondary storage controller receives metadata that uniquely identifies a source volume of a primary storage controller. Data stored in the source volume of the primary storage controller is synchronously copied to a target volume of the secondary storage controller. The secondary storage controller receives a command from a primary host to write selected data to the source volume. In response to receiving the command at the secondary storage controller, the selected data is written to the target volume of the secondary storage controller.

Abstract: A secondary storage controller receives metadata that uniquely identifies a source volume of a primary storage controller. Data stored in the source volume of the primary storage controller is synchronously copied to a target volume of the secondary storage controller. The secondary storage controller receives a command from a primary host to write selected data to the source volume. In response to receiving the command at the secondary storage controller, the selected data is written to the target volume of the secondary storage controller.

Abstract: A secondary storage controller receives metadata that uniquely identifies a source volume of a primary storage controller. Data stored in the source volume of the primary storage controller is synchronously copied to a target volume of the secondary storage controller. The secondary storage controller receives a command from a primary host to write selected data to the source volume. In response to receiving the command at the secondary storage controller, the selected data is written to the target volume of the secondary storage controller.

Abstract: A virtual logical unit that stores learning metadata is allocated in a first storage server having a first plurality of clusters, wherein the learning metadata indicates a type of storage device in which selected data of the first plurality of clusters of the first storage server are stored. A copy services command is received to copy the selected data from the first storage server to a second storage server having a second plurality of clusters. The virtual logical unit that stores the learning metadata is copied, from the first storage server to the second storage server, via the copy services command. Selected logical units corresponding to the selected data are copied from the first storage server to the second storage server, and the learning metadata is used to place the selected data in the type of storage device indicated by the learning metadata.

Abstract: A virtual logical unit that stores learning metadata is allocated in a first storage server having a first plurality of clusters, wherein the learning metadata indicates a type of storage device in which selected data of the first plurality of clusters of the first storage server are stored. A copy services command is received to copy the selected data from the first storage server to a second storage server having a second plurality of clusters. The virtual logical unit that stores the learning metadata is copied, from the first storage server to the second storage server, via the copy services command. Selected logical units corresponding to the selected data are copied from the first storage server to the second storage server, and the learning metadata is used to place the selected data in the type of storage device indicated by the learning metadata.

Abstract: A virtual logical unit that stores learning metadata is allocated in a first storage server having a first plurality of clusters, wherein the learning metadata indicates a type of storage device in which selected data of the first plurality of clusters of the first storage server are stored. A copy services command is received to copy the selected data from the first storage server to a second storage server having a second plurality of clusters. The virtual logical unit that stores the learning metadata is copied, from the first storage server to the second storage server, via the copy services command. Selected logical units corresponding to the selected data are copied from the first storage server to the second storage server, and the learning metadata is used to place the selected data in the type of storage device indicated by the learning metadata.

Abstract: A virtual logical unit that stores learning metadata is allocated in a first storage server having a first plurality of clusters, wherein the learning metadata indicates a type of storage device in which selected data of the first plurality of clusters of the first storage server are stored. A copy services command is received to copy the selected data from the first storage server to a second storage server having a second plurality of clusters. The virtual logical unit that stores the learning metadata is copied, from the first storage server to the second storage server, via the copy services command. Selected logical units corresponding to the selected data are copied from the first storage server to the second storage server, and the learning metadata is used to place the selected data in the type of storage device indicated by the learning metadata.

Abstract: A system and method may include a first storage device supporting a first set of functions and a second storage device supporting a second set of functions different from the first set of functions. The first and second storage devices may be configured to provide a common interface to enable discovery of the first and second sets by invoking a procedure call common to the first and second storage devices. An application, which may initially be unaware of the first and second sets, may be configured to invoke the procedure call and thereby discover the first and second sets, which may be provided as XML documents. The application may be further configured to communicate with the first storage device using the first set of functions, and communicate with the second storage device using the second set of functions using the information discovered by invoking the procedure call.