Storage subsystem data duplication policy

摘要

A type of a storage subsystem that has been connected to a computing device is detected as one of a number of types including a first type and a second type (602). The first type of storage subsystem has a number of storage devices in which data to be stored on the storage subsystem is duplicated within the storage subsystem itself. The second type of storage subsystem has a number of storage devices in which the data to be stored on the storage subsystem is not duplicated within the storage subsystem itself. A data duplication policy for the storage subsystem is set in accordance with the type that has been determined (608).

主权项

1. A method comprising:
detecting a new connection of a storage subsystem to a computing device, wherein the storage subsystem comprises a single independent drive or a plurality of drives that form a single logical unit to the computing device, wherein data from the computing device has yet to be written to the storage subsystem; upon making a determination that the storage subsystem is of a first type in which data to be stored on the storage subsystem is duplicated within the storage subsystem itself, setting a data duplication policy to specify that data written to the storage subsystem is not to be duplicated automatically to another storage subsystem connected to the computing device; and upon making a determination that the storage subsystem is of a second type in which the data to be stored on the storage subsystem is not duplicated within the storage subsystem itself, setting the data duplication policy to specify that data written to the storage subsystem is to be duplicated automatically to another storage subsystem connected to the computing device.