SHARED NETWORK-AVAILABLE STORAGE THAT PERMITS CONCURRENT DATA ACCESS
First Claim
1. A system, comprising:
- multiple media agents, each media agent associated with a client device and configured to perform data storage operations for the client device,wherein the multiple media agents are configured to perform data storage operations with a storage device using dedicated data interfaces; and
an access media agent that is configured to control access to the storage device by the multiple media agents,wherein the access media agent is coupled to the multiple media agents over the dedicated data interfaces.
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Accused Products
Abstract
Techniques for providing shared access to, e.g., a small computer system interface (SCSI) storage device in a computer network include providing an operational mode on SCSI interfaces with a first media agent and a second media agent such that, in response to inquiry messages on the SCSI interfaces, the SCSI storage device appears as a SCSI target device to the first media agent and the second media agent and mapping data operations between the first media agent and the SCSI storage device and the second media agent and the SCSI storage device to logically unique channel numbers for the first media agent and the second media agent to perform data storage operations over their respective SCSI interfaces by concurrently sharing the SCSI storage device.
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Citations
20 Claims
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1. A system, comprising:
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multiple media agents, each media agent associated with a client device and configured to perform data storage operations for the client device, wherein the multiple media agents are configured to perform data storage operations with a storage device using dedicated data interfaces; and an access media agent that is configured to control access to the storage device by the multiple media agents, wherein the access media agent is coupled to the multiple media agents over the dedicated data interfaces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for providing multiple media agents with shared access over a Fibre Channel small computer system interface (SCSI) interface to a storage device in a computer network, the method comprising:
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providing an access media agent in communication with a first media agent and a second media agent over one or more SCSI interfaces, wherein the first media agent and the second media agent are configured to perform data storage operations associated with the storage device for one or more client devices, wherein the access media agent is located at a storage area network (SAN) server configured to arbitrate access to the storage device by the first media agent or the second media agent, and wherein the access media agent is configured to control the SAN sever to appear as a SCSI target to both the first media agent and the second media agent; and mapping, via the access media agent, data storage operations between the first media agent and the storage device and data storage operations between the second media agent and the storage device; and perform data storage operations over respective SCSI interfaces by concurrently sharing the storage device with the first media agent and the second media agent. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A non-transitory computer-readable medium whose contents, when by a computing system, cause the computing system to perform a method of providing multiple media agents with shared access over a small computer system interface (SCSI) interface to a storage device in a computer network, the method comprising:
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coupling a first media agent and a second media agent to an intermediate media agent over respective SCSI interfaces to cause the storage device to appear as a SCSI target device to the first media agent and the second media agent, wherein the intermediate media agent is located at a storage area network (SAN) server associated with the storage device, and wherein the first media agent and the second media agent are configured to access the storage device during data storage operations performed for one or more client devices associated with the first media agent or the second media agent; and controlling access, via the SAN server, to the storage device for the first media agent and the second media agent. - View Dependent Claims (18, 19, 20)
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Specification