System and method for distributed partitioned library mapping

A system of distributed partitioned library mapping, comprising:

• a plurality of storage routers, wherein each storage router from the plurality of storage routers is connected to a data transport element of a media library and wherein each storage router:
• maintains at least one media library partition;
• receives commands directed to a media changer based on the at least one media library partition;
• translates logical addresses in received commands directed to the media changer to corresponding physical addresses based on the at least one media library partition;
• forwards the commands with the corresponding physical addresses;
• and
• an additional storage router connected to the media changer of the media library and each of the plurality of storage routers, wherein the additional storage router:
• receives forwarded commands directed to the media changer from each of the plurality of storage routers;
• communicates the forwarded commands to the media changer.

A method of distributed partitioned library mapping comprising:

• maintaining a media library partition at a first controller;
• receiving a command directed to a media changer at the first controller based on the media library partition;
• translating at the first controller logical addresses in the received command to physical addresses based on the media library partition;
• forwarding the command with physical addresses from the first controller to a second controller;
• and
• forwarding the command from the second controller to the media changer.

A computer program device for distributed media library mapping comprising a set of software instructions stored on one or more computer readable media, wherein the software instructions are executable by one or more processors to:

• maintain a media library partition at a first controller;
• receive a command based on the media library partition, wherein the command is directed to a media changer;
• translate logical addresses in the command to physical addresses;
• and
• forward the command with physical addresses to a second controller.

A system of distributed media library mapping comprising:

• a media library comprising:
• a plurality of data transport elements;
• and
• a media changer;
• a plurality of storage area networks;
• a plurality of storage routers, wherein each of the plurality of storage routers is connected to a storage area network from the plurality of storage area networks, a data transport element from the plurality of data transport elements and a control network and wherein each of the plurality of storage routers:
• maintains a library partition representing a portion of the media library;
• receives a command directed to the media changer based on the library partition via the storage area network;
• translates logical addresses in the command to physical addresses;
• and
• forwards the command with physical addresses to another storage router via the control network;
• and
• an additional storage router connected to the control network and connected to the media changer, wherein the additional storage router:
• receives commands via the control network from the plurality of storage routers directed to the media changer;
• and
• forwards the commands to the media changer on a FIFO basis.