Storage switch system, storage switch method, management server, management method, and management program
First Claim
1. A storage switch system including a storage unit, a switch which logically sets a network topology between the storage unit and a plurality of computers, and a management server which communicates with the switch and the storage unit, whereinthe storage unit comprises one or more disks and a controller which controls accesses to the disks corresponding to each of the computers, whereinthe management server comprises a memory and a processor, whereinthe memory holds the network topology which is set by the switch, whereinwhen a failure is detected in one of the computers currently being used, the processor of the management server refers to the memory to change the network topology for the computer where the failure is detected and another computer which substitutes the computer where the failure is detected, and instructs the switch with the changed network topology so as to cause the switch to logically set the changed network topology, and whereinthe controller of the storage unit controls accesses from the another computer to the disks in accordance with the computer where the failure is detected.
1 Assignment
0 Petitions
Accused Products
Abstract
When a failure is detected in a server currently being used, a management server changes the network topology for the server currently being used and another server which substitutes the server. Then, the management server instructs the network SW with the changed network topology so as to cause the network SW to set the network topology logically. In addition, the management server instructs a disk array unit to control accesses from the other server to the disk in accordance with the server where the failure is detected.
14 Citations
15 Claims
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1. A storage switch system including a storage unit, a switch which logically sets a network topology between the storage unit and a plurality of computers, and a management server which communicates with the switch and the storage unit, wherein
the storage unit comprises one or more disks and a controller which controls accesses to the disks corresponding to each of the computers, wherein the management server comprises a memory and a processor, wherein the memory holds the network topology which is set by the switch, wherein when a failure is detected in one of the computers currently being used, the processor of the management server refers to the memory to change the network topology for the computer where the failure is detected and another computer which substitutes the computer where the failure is detected, and instructs the switch with the changed network topology so as to cause the switch to logically set the changed network topology, and wherein the controller of the storage unit controls accesses from the another computer to the disks in accordance with the computer where the failure is detected.
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2. A storage switch method to switch a storage unit using a computer system which comprises a storage unit, a switch which logically sets a network topology between the storage unit and a plurality of computers, and a management server which communicates with the switch and the storage unit, wherein
the storage unit comprises one or more disks and a controller which controls accesses to the disks corresponding to each of the computers, wherein the management server comprises a memory and a processor, and wherein the memory holds the network topology which is set by the switch, comprising steps of: -
when a failure is detected in one of the computers currently being used, the processor of the management server referring to the memory to change the network topology for the computer where the failure is detected and another computer which substitutes the computer where the failure is detected, and instructing the switch with the changed network topology so as to cause the switch to logically set the changed network topology; and the controller of the storage unit controlling accesses from the another computer to the disks corresponding to the computer where the failure is detected. - View Dependent Claims (3)
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4. A management server which communicates with a plurality of computers connected to a storage unit by a network through a switch, wherein
the management server comprises a memory and a processor, wherein the memory holds a network topology which is set by the switch, and wherein when a failure is detected in one of the computers currently being used, the processor of the management server refers to the memory to change the network topology for the computer where the failure is detected and another computer which substitutes the computer where the failure is detected, instructs the switch with the changed network topology so as to cause the switch to logically set the changed network topology, and instructs the storage unit to control accesses from the another computer to the disks corresponding to the computer where the failure is detected.
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6. A management method used in a management server which communicates with a plurality of computers connected to a storage unit by a network through a switch, wherein
the management server comprises a memory and a processor, and wherein the memory holds a network topology which is set by the switch, comprising steps of: -
when a failure is detected in one of the computers currently being used, the processor of the management server referring to the memory to change the network topology for the computer where the failure is detected and another computer which substitutes the computer where the failure is detected, and instructing the switch with the changed network topology so as to cause the switch to logically set the changed network topology; and the processor of the management server instructing the storage unit to control accesses from the another computer to the disks corresponding to the computer where the failure is detected. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification