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: 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.

Abstract: The invention relates to exchanging micro programs in a storage device, automatically, without halting operation. In one embodiment, the path adapters of a host computer are connected to the input/output ports of respective clusters of a storage device, by respective connection paths. Path switching software is provided in the host computer, as well as database indicating connection destinations of the connection path. In the storage device, the input/output ports are connected to a group of a plurality of hard disk drive devices. An internal management device, and a database indicating the connection destination of each input/output port, are provided in the storage device. The management server device is connected to a host computer and a storage device, via a LAN, and a program exchanging program and micro programs to be used in exchange are provided in this management server device. Instructions for invoking the program are issued from the computer.

Abstract: The invention relates to exchanging micro programs in a storage device, automatically, without halting operation. In one embodiment, the path adapters of a host computer are connected to the input/output ports of respective clusters of a storage device, by respective connection paths. Path switching software is provided in the host computer, as well as database indicating connection destinations of the connection path. In the storage device, the input/output ports are connected to a group of a plurality of hard disk drive devices. An internal management device, and a database indicating the connection destination of each input/output port, are provided in the storage device. The management server device is connected to a host computer and a storage device, via a LAN, and a program exchanging program and micro programs to be used in exchange are provided in this management server device. Instructions for invoking the program are issued from the computer.

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 control method is disclosed for a storage control apparatus having a plurality of channel control units connected to communicate with each other and which receives a data input or data output request transmitted from an information processing device and controls writing and reading of data to a storage device in accordance with the data input/output request, and a disk control unit which carries out the writing and reading of data to the storage device in accordance with the control signal. A first channel control unit monitors the information processing device by communicating with the information processing device. When a problem is detected in the information processing device, the channel control unit restricts processing to be carried out in accordance with the data input/output request by a second channel control unit to which the data input/output transmitted from the information processing device is delivered.

Abstract: The present invention allows a reserved state that prevails for an LDEV as a result of a host undergoing a system shutdown or the like to be confirmed and cancelled easily. The server 1 reserves the LDEV 4 and uses same exclusively. When the server 1 undergoes a system shutdown due to a fault or similar (S1), the LDEV 4 then remains reserved (S2). The server 2 is therefore unable to access the LDEV 4. The system administrator reads exclusive control information 6 in the memory 5 via the management terminal 7, and is thus able to display the reserved states of respective LDEVs on a terminal screen and confirm these states. The user then issues an instruction to cancel a reserved state from the management terminal 7 (S3). The disk array device 3 receives the cancellation instruction, and then cancels the reserved state by partially rewriting the exclusive control information 6.

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 invention relates to exchanging micro programs in a storage device, automatically, without halting operation. In one embodiment, the path adapters of a host computer are connected to the input/output ports of respective clusters of a storage device, by respective connection paths. Path switching software is provided in the host computer, as well as database indicating connection destinations of the connection path. In the storage device, the input/output ports are connected to a group of a plurality of hard disk drive devices. An internal management device, and a database indicating the connection destination of each input/output port, are provided in the storage device. The management server device is connected to a host computer and a storage device, via a LAN, and a program exchanging program and micro programs to be used in exchange are provided in this management server device. Instructions for invoking the program are issued from the computer.

Abstract: Memory resources are effectively utilized by visually setting an external memory resource as an internal memory resource. 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: 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.

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.

Abstract: A control method is disclosed for a storage control apparatus having a plurality of channel control units connected to communicate with each other and which receives a data input or data output request transmitted from an information processing device and controls writing and reading of data to a storage device in accordance with the data input/output request, and a disk control unit which carries out the writing and reading of data to the storage device in accordance with the control signal. A first channel control unit monitors the information processing device by communicating with the information processing device. When a problem is detected in the information processing device, the channel control unit restricts processing to be carried out in accordance with the data input/output request by a second channel control unit to which the data input/output transmitted from the information processing device is delivered.

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.

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 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: 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.