Storage Array Reservation Forwarding

A method performed by a destination storage system, comprising:

• discovering a volume that is accessible through a source storage system;
• exporting the volume to a host computer system;
• and
• receiving a request from the host computer system to reserve the volume while the host computer system is able to simultaneously access the volume via the destination storage system and the source storage system, and in response to the request:
• locally reserving the volume for the host computer system;
• and
• forwarding the reservation from the destination storage system to the source storage system by requesting the source storage system to reserve the volume for the destination storage system.

A non-transitory computer-readable medium encoded with computer-readable instructions that, when executed by a processor of a destination storage system, direct the processor to:

• discover a volume that is accessible through a source storage system;
• export the volume to a host computer system;
• and
• receive a request from the host computer system to reserve the volume while the host computer system is able to simultaneously access the volume via the destination storage system and the source storage system, and in response to the request:
• locally reserve the volume for the host computer system;
• and
• forward the reservation from the destination storage system to the source storage system by requesting the source storage system to reserve the volume for the destination storage system.

A destination storage system, comprising:

• a network interface coupled to host computers and a source storage array;
• a memory storing processor executable instructions;
• and
• a processor to:
• discover a volume that is accessible through a source storage system;
• export the volume to a host computer system;
• and
• receive a request from the host computer system to reserve the volume while the host computer system is able to simultaneously access the volume via the destination storage system and the source storage system, and in response to the request:
• locally reserve the volume for the host computer system;
• and
• forward the reservation from the destination storage system to the source storage system by requesting the source storage system to reserve the volume for the destination storage system.