SWITCH DEVICE, SYSTEM, BACKUP METHOD AND COMPUTER PROGRAM
First Claim
1. A backup management system comprising:
- a plurality of file devices, each including a file system;
means for halting access to said file devices; and
means for commanding said plurality of file devices to start generation of snapshots after the access to said file devices has halted.
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Accused Products
Abstract
Disclosed is a system which includes at least one client, a plural number of file servers, each having a file system, and a switch logically arranged between the client and the plural file servers to provide file access services which virtually render the plural file services accessible as a single file system, termed a ‘pseudo file system’, when viewed from the terminal. The switch distributes a command for start of generation of snapshots to the plural file servers, which file servers formulate respective snapshots responsive to the command for start of formation of the snapshots. The switch sets the plural snapshots, generated by the plural file servers, so as to be associated with the file system structure of the virtual file system at the time of formation of the snapshots.
59 Citations
15 Claims
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1. A backup management system comprising:
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a plurality of file devices, each including a file system; means for halting access to said file devices; and means for commanding said plurality of file devices to start generation of snapshots after the access to said file devices has halted. - View Dependent Claims (2, 3)
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4. A file access service system comprising:
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an intermediate device logically arranged between at least one terminal and a plurality of file devices, each provided with a file system; said intermediate device including; means for halting access to said file devices; and means for commanding said plurality of file devices to start generation of snapshots after the access to said file devices has halted. - View Dependent Claims (5, 6)
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7. A switch device logically arranged between at least one terminal and a plurality of file devices, each provided with a file system, said switch device including:
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means for halting access to said file devices; and means for commanding said plurality of file devices to start generation of snapshots after the access to said file devices has halted. - View Dependent Claims (8, 9)
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10. A method for backup management comprising:
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halting access to a plurality of file devices, each provided with a file system; and commanding said plurality of file devices to start generation of snapshots after the access to said file devices has halted. - View Dependent Claims (11, 12)
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13. A method for file access service comprising:
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halting access to a plurality of file devices, each provided with a file system; and commanding said plurality of file devices to start generation of snapshots after the access to said file devices has halted. - View Dependent Claims (14, 15)
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Specification