Abstract: A disk-array device includes an information managing database for acquiring link information among a server device, a switch device, and a storage device via the switch device so as to manage the link information in a combined manner, and a collection analysis unit for retrieving and collecting desired combined information of the link information from the information managing database so as to analyze the desired combined information.

Abstract: A first storage controller has a multilayer memory hierarchy constructed by LDEV (logical device) connected from LUN, and VDEV (virtual device) connected to the lower order of the LDEV. At least one of the VDEVs is constructed by mapping the memory resources arranged in external storage controllers. The functions of a stripe, RAID, etc. can be added in the mapping. Various kinds of functions (remote copy, variable volume function, etc.) applicable to the normal internal volume can be also used in a virtual internal volume by using the external memory resource as the virtual internal memory resource so that the degree of freedom of utilization is raised.

Abstract: The present invention unitarily manages the configuration change of a storage system so as to know the latest configuration, and evaluates the reliability in advance when the configuration is changed so that the generation of a failure is suppressed. When the host 1 is connected to the switch 2, the attribute information of HBA 1A and the attribute information of the switch 2 are stored in the connection information storage unit 2C by FDMI (Fabric Device Management Interface) (S1, S2). Each attribute information is associated with each other and is managed as combination information. The storage device 3 acquires the combination information from the switch 2 (S3, S4), and requests the management device 4 to judge the reliability of this combination (S5). The management device 4 judges the combination of the HBA and the switch (S6), and notifies this judgment result to the storage device 3 (S7).

Abstract: The present invention unitarily manages the configuration change of a storage system so as to know the latest configuration, and evaluates the reliability in advance when the configuration is changed so that the generation of a failure is suppressed. When the host 1 is connected to the switch 2, the attribute information of HBA 1A and the attribute information of the switch 2 are stored in the connection information storage unit 2C by FDMI (Fabric Device Management Interface) (S1, S2). Each attribute information is associated with each other and is managed as combination information. The storage device 3 acquires the combination information from the switch 2 (S3, S4), and requests the management device 4 to judge the reliability of this combination (S5). The management device 4 judges the combination of the HBA and the switch (S6), and notifies this judgment result to the storage device 3 (S7).

Abstract: A plurality of key information items with a fixed constitution are stored in a shared memory of a first storage control system. Each key information item corresponds with each of the types of a second storage control system and includes, in a predetermined location in the key information, an information element that indicates the location of a particular information item among the plurality of information items in the control system information. A microprocessor in a Fibre Channel Adapter of the first storage control system determines whether to form a logical path with the second storage control system on the basis of the key information and the control system information that is received from the second storage control system.

Abstract: A control apparatus of a storage unit having a first and a second communication ports for conducting communication with a computer, a first and a second processors that control respectively the first and the second communication ports, first and second storage devices that store respectively a first and a second queues for storing commands sent from the computer respectively to the first and the second communication ports, and a first nonvolatile memory that the first processor accesses, the first and the second processors executing the commands stored respectively in the first and the second queues to thereby control the communications with the computer, comprising a unit causing the second processor to implement execution of the command stored in the first queue; and a unit changing data stored in the first memory while the second processor is being caused to implement execution of the command stored in the first queue.

Abstract: A plurality of key information items with a fixed constitution are stored in a shared memory of a first storage control system. Each key information item corresponds with each of the types of a second storage control system and includes, in a predetermined location in the key information, an information element that indicates the location of a particular information item among the plurality of information items in the control system information. A microprocessor in a Fibre Channel Adapter of the first storage control system determines whether to form a logical path with the second storage control system on the basis of the key information and the control system information that is received from the second storage control system.

Abstract: The present invention unitarily manages the configuration change of a storage system so as to know the latest configuration, and evaluates the reliability in advance when the configuration is changed so that the generation of a failure is suppressed. When the host 1 is connected to the switch 2, the attribute information of HBA 1A and the attribute information of the switch 2 are stored in the connection information storage unit 2C by FDMI (Fabric Device Management Interface) (S1, S2). Each attribute information is associated with each other and is managed as combination information. The storage device 3 acquires the combination information from the switch 2 (S3, S4), and requests the management device 4 to judge the reliability of this combination (S5). The management device 4 judges the combination of the HBA and the switch (S6), and notifies this judgment result to the storage device 3 (S7).

Abstract: A control apparatus of a storage unit having a first and a second communication ports for conducting communication with a computer, a first and a second processors that control respectively the first and the second communication ports, first and second storage devices that store respectively a first and a second queues for storing commands sent from the computer respectively to the first and the second communication ports, and a first nonvolatile memory that the first processor accesses, the first and the second processors executing the commands stored respectively in the first and the second queues to thereby control the communications with the computer, comprising a unit causing the second processor to implement execution of the command stored in the first queue; and a unit changing data stored in the first memory while the second processor is being caused to implement execution of the command stored in the first queue.

Abstract: The present invention unitarily manages the configuration change of a storage system so as to know the latest configuration, and evaluates the reliability in advance when the configuration is changed so that the generation of a failure is suppressed. When the host 1 is connected to the switch 2, the attribute information of HBA 1A and the attribute information of the switch 2 are stored in the connection information storage unit 2C by FDMI (Fabric Device Management Interface) (S1, S2). Each attribute information is associated with each other and is managed as combination information. The storage device 3 acquires the combination information from the switch 2 (S3, S4), and requests the management device 4 to judge the reliability of this combination (S5). The management device 4 judges the combination of the HBA and the switch (S6), and notifies this judgment result to the storage device 3 (S7).

Abstract: A disk-array device includes an information managing database for acquiring link information among a server device, a switch device, and a storage device via the switch device so as to manage the link information in a combined manner, and a collection/analysis unit for retrieving and collecting desired combined information of the link information from the information managing database so as to analyze the desired combined information.

Abstract: A storage system storing data sending/receiving data to/from a plurality of external devices via a common network. The storage system controls access from the plurality of external devices. The storage system accepts accesses according to different protocols from the plurality of external devices via the common network. The storage system analyzes the protocol from the external devices which accessed through the external interface. The storage system sends/receives data based on the analysis result.

Abstract: A control apparatus of a storage unit having a first and a second communication ports for conducting communication with a computer, a first and a second processors that control respectively the first and the second communication ports, first and second storage devices that store respectively a first and a second queues for storing commands sent from the computer respectively to the first and the second communication ports, and a first nonvolatile memory that the first processor accesses, the first and the second processors executing the commands stored respectively in the first and the second queues to thereby control the communications with the computer, comprising a unit causing the second processor to implement execution of the command stored in the first queue; and a unit changing data stored in the first memory while the second processor is being caused to implement execution of the command stored in the first queue.

Abstract: A plurality of key information items with a fixed constitution are stored in a shared memory of a first storage control system. Each key information item corresponds with each of the types of a second storage control system and includes, in a predetermined location in the key information, an information element that indicates the location of a particular information item among the plurality of information items in the control system information. A microprocessor in a Fibre Channel Adapter of the first storage control system determines whether to form a logical path with the second storage control system on the basis of the key information and the control system information that is received from the second storage control system.

Abstract: A first storage controller has a multilayer memory hierarchy constructed by LDEV (logical device) connected from LUN, and VDEV (virtual device) connected to the lower order of the LDEV. At least one of the VDEVs is constructed by mapping the memory resources arranged in external storage controllers. The functions of a stripe, RAID, etc. can be added in the mapping. Various kinds of functions (remote copy, variable volume function, etc.) applicable to the normal internal volume can be also used in a virtual internal volume by using the external memory resource as the virtual internal memory resource so that the degree of freedom of utilization is raised.

Abstract: A disk-array device includes an information managing database for acquiring link information among a server device, a switch device, and a storage device via the switch device so as to manage the link information in a combined manner, and a collection/analysis unit for retrieving and collecting desired combined information of the link information from the information managing database so as to analyze the desired combined information.

Abstract: A plurality of key information items with a fixed constitution are stored in a shared memory of a first storage control system. Each key information item corresponds with each of the types of a second storage control system and includes, in a predetermined location in the key information, an information element that indicates the location of a particular information item among the plurality of information items in the control system information. A microprocessor in a Fibre Channel Adapter of the first storage control system determines whether to form a logical path with the second storage control system on the basis of the key information and the control system information that is received from the second storage control system.

Abstract: A control apparatus of a storage unit having a first and a second communication ports for conducting communication with a computer, a first and a second processors that control respectively the first and the second communication ports, first and second storage devices that store respectively a first and a second queues for storing commands sent from the computer respectively to the first and the second communication ports, and a first nonvolatile memory that the first processor accesses, the first and the second processors executing the commands stored respectively in the first and the second queues to thereby control the communications with the computer, comprising a unit causing the second processor to implement execution of the command stored in the first queue; and a unit changing data stored in the first memory while the second processor is being caused to implement execution of the command stored in the first queue.

Abstract: Mapping tables are for stipulating information for primarily identifying computers, information for identifying a group of the computers and a logical unit number permitting access from the host computer inside storage subsystem, in accordance with arbitrary operation method by a user, and for giving them to host computer. The invention uses management table inside the storage subsystem and allocates logical units inside the storage subsystem to a host computer group arbitrarily grouped by a user in accordance with the desired form of operation of the user, can decide access approval/rejection to the logical unit inside the storage subsystem in the group unit and at the same time, can provide the security function capable of setting interface of connection in the group unit under single port of storage subsystem without changing existing processing, limitation and other functions of computer.

Abstract: Tables (FIGS. 11 and 12) for stipulating information (WWN: WorldWide Name) for primarily identifying computers, information (GID: Group ID) for identifying a group of the computers and a logical unit number (LUN) permitting access from the host computer inside storage subsystem, in accordance with arbitrary operation method by a user, and for giving them to host computer. The invention uses management table inside the storage subsystem and gives logical unit inside storage subsystem to host computer group arbitrarily grouped by a user in accordance with the desired form of operation of the user, can decide access approval/rejection to the logical unit inside the storage subsystem in the group unit and at the same time, can provide the security function capable of setting interface of connection in the group unit under single port of storage subsystem without changing existing processing, limitation and other functions of computer.