CLUSTER NODE CONTROL APPARATUS OF FILE SERVER
First Claim
Patent Images
1. A computer readable recording medium storing a cluster node control program of a file server causing a computer to execute a process comprising:
- transferring a file service state utilized by a client in a transfer source node, to a transfer target node, when an instruction to transfer a network file service between nodes of a clustering system is received; and
transmitting a file service request reached from the client to the transfer source node, to the transfer target node, after the file service state is transferred to the transfer target node.
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Abstract
When a network file service is transferred from a transfer source node to a transfer target node, a file service state utilized by a client in the transfer source node is transferred to the transfer target node. Then, after the file service state is transferred to the transfer target node, a file service request (I/O request) reached from the client to the transfer source node is transmitted to the transfer target node.
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Citations
12 Claims
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1. A computer readable recording medium storing a cluster node control program of a file server causing a computer to execute a process comprising:
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transferring a file service state utilized by a client in a transfer source node, to a transfer target node, when an instruction to transfer a network file service between nodes of a clustering system is received; and transmitting a file service request reached from the client to the transfer source node, to the transfer target node, after the file service state is transferred to the transfer target node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cluster node control method of a filer server, which is executed in a computer, the method comprising:
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transferring a file service state utilized by a client in a transfer source node, to a transfer target node, when an instruction to transfer a network file service between nodes of a clustering system is received; and transmitting a file service request reached from the client to the transfer source node, to the transfer target node, after the file service state is transferred to the transfer target node.
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12. A cluster node control apparatus of a filer server comprising:
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state transfer means for transferring a file service state utilized by a client in a transfer source node, to a transfer target node, when an instruction to transfer a network file service between nodes setting up a clustering system is received; and request transfer means for transmitting a file service request reached from the client to the transfer source node to the transfer target node, after the file service state is transferred to the transfer target node by the state transfer means.
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Specification