Disk array system and fault information control method
First Claim
1. A disk array system comprising:
- a plurality of storage devices in which data is stored;
a storage device control unit that controls storage of data in said plurality of storage devices;
a connection unit connected to said storage device control unit;
a first communication control unit that is connected to said storage device control unit via said connection unit and connected onto a first network external to said own disk array system, and that transfers file data over said first network;
a cache memory that temporarily stores data transferring between said first communication control unit and said storage device control unit; and
a management terminal managing a plurality of resources of said disk array system and being used for acquiring information on fault occurring in said disk array system, said fault information being used to search a reason for said fault, wherein;
said first communication control unit comprises;
a first processor that associates file data, which is transferred over said first network, with block-form data that is stored in said storage device control unit; and
a second processor configured to prevent the first processor from being directly accessed by said management terminal by transferring data to said cache memory in response to a request made by said first processor, by transferring to the first processor an instruction to collect said fault information in said disk array system based on a request sent from said management terminal, by reading information on managing said fault occurring in said disk array system from said plurality of storage devices in response to the request for the information made by said first processor, and then by transmitting the information to said first processor.
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Abstract
A disk array system in accordance with the present invention comprises: a plurality of storage devices in which data is stored; a storage device control unit that controls storage of data in the plurality of storage devices; a connection unit connected to the storage device control unit; a first communication control unit; and a management terminal. The first communication control unit is connected to the storage device control unit via the connection unit, and connected on a first network external to the own disk array system, and transfers file data over the first network. The first communication control unit transfers data to the connection unit, and reads information on a fault occurring in the own disk array system from the plurality of storage devices so as to transfer the information to the management terminal.
According to the present invention, there is provided a disk array system connectable on a plurality of different kinds of networks and a method of controlling fault information concerning the disk array system.
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Citations
18 Claims
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1. A disk array system comprising:
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a plurality of storage devices in which data is stored; a storage device control unit that controls storage of data in said plurality of storage devices; a connection unit connected to said storage device control unit; a first communication control unit that is connected to said storage device control unit via said connection unit and connected onto a first network external to said own disk array system, and that transfers file data over said first network; a cache memory that temporarily stores data transferring between said first communication control unit and said storage device control unit; and a management terminal managing a plurality of resources of said disk array system and being used for acquiring information on fault occurring in said disk array system, said fault information being used to search a reason for said fault, wherein; said first communication control unit comprises; a first processor that associates file data, which is transferred over said first network, with block-form data that is stored in said storage device control unit; and a second processor configured to prevent the first processor from being directly accessed by said management terminal by transferring data to said cache memory in response to a request made by said first processor, by transferring to the first processor an instruction to collect said fault information in said disk array system based on a request sent from said management terminal, by reading information on managing said fault occurring in said disk array system from said plurality of storage devices in response to the request for the information made by said first processor, and then by transmitting the information to said first processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A fault information control method of a disk array system comprising the steps of:
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providing the disk array system with a plurality of storage devices in which data is stored;
a storage device control unit that controls storage of data in said plurality of storage devices;
a connection unit connected to said storage device control unit; and
a first conununication control unit that is connected to said storage device control unit via said connection unit and connected onto a first network external to said own disk array system, and that transfers file data over said first network;
a cache memory that temporarily stores data transferring between said first communication control unit and said storage device control unit; and
a management terminal managing a plurality of resources of said disk array system, said first communication control unit including a first processor and a second processor;associating by said first processor file data, which is transferred over said first network, with block-form data that is stored in said storage device control unit;
transferring by said first processor the block-form data that is stored in said storage device control unit; and
making a request for information on managing a fault occurring in said own disk array system by said first processor;preventing the first processor from being directly accessed by said management terminal by transferring data by said second processor to said cache memory, which is sent from said first processor, via said connection unit, by transferring by said second processor to said first processor an instruction to collect information on a fault in said disk array system based upon a request from said management terminal, by reading by said second processor the information on managing the fault in said disk array system from said plurality of storage devices and then by transmit the information to said first processor; and using said management terminal to acquire information on fault occurring in said disk array system, and using said fault information to search a reason for said fault. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification