Methods and apparatus for implementing virtualization of storage within a storage area network
First Claim
1. A method of implementing storage virtualization on a network device of a storage area network, the method comprising:
- (a) receiving a frame or packet at a port of the network device;
(b) determining that the frame or packet pertains to access of a virtual storage location of a virtual storage unit representing one or more physical storage locations on one or more physical storage units of the storage area network;
(c) obtaining a virtual-physical mapping between the one or more physical storage locations and the virtual storage location; and
(d) sending a new or modified frame or packet to an initiator or a target specified by the virtual-physical mapping.
3 Assignments
0 Petitions
Accused Products
Abstract
Methods and apparatus for implementing storage virtualization on a network device of a storage area network are disclosed. A frame or packet is received at a port of the network device. It is then determined that the frame or packet pertains to access of a virtual storage location of a virtual storage unit representing one or more physical storage locations on one or more physical storage units of the storage area network. A virtual-physical mapping between the one or more physical storage locations and the virtual storage location is then obtained. A new or modified frame or packet is then sent to an initiator or a target specified by the virtual-physical mapping.
408 Citations
60 Claims
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1. A method of implementing storage virtualization on a network device of a storage area network, the method comprising:
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(a) receiving a frame or packet at a port of the network device;
(b) determining that the frame or packet pertains to access of a virtual storage location of a virtual storage unit representing one or more physical storage locations on one or more physical storage units of the storage area network;
(c) obtaining a virtual-physical mapping between the one or more physical storage locations and the virtual storage location; and
(d) sending a new or modified frame or packet to an initiator or a target specified by the virtual-physical mapping. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A computer-readable medium storing thereon instructions for implementing storage virtualization on a network device of a storage area network, the computer-readable medium comprising:
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(a) instructions for receiving a frame or packet at a port of the network device;
(b) instructions for determining that the frame or packet pertains to access of a virtual storage location of a virtual storage unit representing one or more physical storage locations on one or more physical storage units of the storage area network;
(c) instructions for obtaining a virtual-physical mapping between the one or more physical storage locations and the virtual storage location; and
(d) instructions for sending a new or modified frame or packet to an initiator or a target specified by the virtual-physical mapping.
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55. A network device of a storage area network adapted for implementing storage virtualization, comprising:
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(a) means for receiving a frame or packet at a port of the network device;
(b) means for determining that the frame or packet pertains to access of a virtual storage location of a virtual storage unit representing one or more physical storage locations on one or more physical storage units of the storage area network;
(c) means for obtaining a virtual-physical mapping between the one or more physical storage locations and the virtual storage location; and
(d) means for sending a new or modified frame or packet to an initiator or a target specified by the virtual-physical mapping.
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56. A network device of a storage area network adapted for implementing storage virtualization, comprising:
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a processor; and
a memory, at least one of the processor and the memory being adapted for;
(a) receiving a frame or packet at a port of the network device;
(b) determining that the frame or packet pertains to access of a virtual storage location of a virtual storage unit representing one or more physical storage locations on one or more physical storage units of the storage area network;
(c) obtaining a virtual-physical mapping between the one or more physical storage locations and the virtual storage location; and
(d) sending a new or modified frame or packet to an initiator or a target specified by the virtual-physical mapping.
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57. A network device for use in a storage area network supporting virtualization, the network device comprising a plurality of ports, wherein at least some of said ports comprise
(i) an interface for sending and receiving packets or frames on a storage area network; - and
(ii) logic dedicated to said port of the network device, said logic for identifying frames or packets pertaining to access of a virtual storage location of a virtual storage unit representing one or more physical storage locations on one or more physical storage units of the storage area network; and
implementing a virtual-physical mapping between the one or more physical storage locations and the virtual storage location.
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58. A method of implementing storage virtualization on a network device of a storage area network, the method comprising:
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(a) receiving a frame or packet at a port of the network device;
(b) obtaining information from the frame or packet pertaining to access of data stored in one or more physical locations on one or more physical storage units of the storage area network, the information identifying one or more of the physical locations or a virtual storage location representing the one or more physical storage locations;
(c) obtaining a virtual-physical mapping between the one or more physical storage locations and the virtual storage location; and
(d) sending a new or modified frame or packet to an identity specified by the virtual-physical mapping. - View Dependent Claims (59, 60)
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Specification