Abstract: The management computer allocates a volume of an external storage device to a host so as to satisfy performance requirements specified from the host. The management computer selects a path that is formed including a first port of the storage device and a second port of the external storage device and that satisfies the performance requirements from the host, and then sets the priority. The management computer sets to the host the use authorization of a primary port and a secondary port that constitute a selected path and the use authorization of a second logical volume.

Abstract: This invention provides, when optimizing a configuration of a storage system using a pool, an optimal configuration while ensuring a policy set by an administrator, the policy concerning a power saving performance, a response performance, or the like. The management computer sets, according to the set policy, priorities to volumes held by a storage subsystem, and reserves volumes satisfying the capacity of the pool, in descending order of the priority. Only some of the reserved volumes are registered for the pool in descending order of the priority. At this time, it can be guaranteed that a host computer makes no access to the volumes which have not been registered for the pool, and therefore the sleep state is set to physical drives forming the volumes or to a controller controlling the physical drives.

Abstract: The object of the invention is to control the power consumption in a storage subsystem. In a storage system, when a monitor in a host computer acquires information concerning a storage region to manage the storage region, a monitor in the host computer checks whether or not the power supply state in the storage region is ‘on’ based on a storage region information that stores first information indicating whether or not the power supply state in the storage region is ‘on’ and second information concerning the storage region, and acquires the second information from the storage region information table if the power supply state in the storage region is not ‘on’.

Abstract: If both of LUN security information on storage apparatuses and configuration information on an iSNS server are acquirable, a management server makes reference to configuration situation of the LUN security acquired from a monitoring-target storage apparatus, thereby acquiring iSCSI initiator names which are permitted to access the storage apparatus. Moreover, the management server acquires, from the iSNS server, IP address of an iSCSI initiator name which does not exist on a monitoring-target host out of the iSCSI initiator names, then adding the IP address into monitoring-target nodes. Meanwhile, when an access from the management server to a monitoring-target node becomes impossible for a certain constant time-period due to a reason such that the monitoring-target node has been excluded from the network, the management server is capable of excluding the monitoring-target node from the monitoring targets on a GUI.

Abstract: When creating a storage pool with external volumes, it is not possible to put together the volumes that have the same level of reliability if consideration is only given to the physical attributes of such volumes. Further, the reliability demanded between a host computer and a storage apparatus does not necessarily match the reliability between storage apparatuses. When creating a storage pool in the data processing system of this invention, not only is consideration given to the characteristics of the physical disks themselves, consideration is also given to the connection status of the backend network between a storage apparatus and a switch loaded with external storage function, and an external storage apparatus. What is more, volumes are allocated to a host machine after said system considers both the redundancy of a backend network of between storage apparatuses and that of a network path between the host machine and storage apparatus.

Abstract: This invention provides a system including a computer and a storage-subsystem comprising at least either a first storage area for storing data sent from the computer or a second storage area to be associated with the first storage area, for storing replicated data of data stored in the first storage area. This system includes a replication processing status referral unit for referring to a replication processing status of data of the first storage area and the second storage area to be associated, and an output unit for outputting first performance information concerning data I/O stored in the first storage area, and outputting second performance information concerning data I/O stored in the second storage area together with the first performance information when the replicated data is being subject to replication processing from the first storage area to the second storage area as a result of referring to the replication processing status.

Abstract: The management system of the present invention is capable of efficiently discovering each apparatus coupled to a communication network. The management server 1 judges a type of an apparatus coupled to a communication network 5 on the basis of service utilization information T1, which is acquired from a discovered device or acquired from a device (an iSNS server 4, for example) having a name server function for resolving an address from a public name, and on the basis of discovery management information prepared beforehand (S1, S2). The management server 1 acquires a communication protocol in accordance with the type of the apparatus from protocol selection rules T3, and attempts authentication of the apparatus by using the communication protocol (S3).

Abstract: This invention provides a system including a computer and a storage-subsystem comprising at least either a first storage area for storing data sent from the computer or a second storage area to be associated with the first storage area, for storing replicated data of data stored in the first storage area. This system includes a replication processing status referral unit for referring to a replication processing status of data of the first storage area and the second storage area to be associated, and an output unit for outputting first performance information concerning data I/O stored in the first storage area, and outputting second performance information concerning data I/O stored in the second storage area together with the first performance information when the replicated data is being subject to replication processing from the first storage area to the second storage area as a result of referring to the replication processing status.

Abstract: Provided are a storage system and its control method having superb functionality of being able to notify an administrator of the extent of impact of a pool fault in an easy and prompt manner. The foregoing storage system and its control method manage a storage area provided by a storage medium by dividing it into multiple pools, provide a virtual logical device to a host system, dynamically allocate a storage area to the logical device according to a data write request from the host system for writing data into the logical device, move data that was written into the logical device to another pool according to the access status from host system to such data, identify, when a fault occurs in any one of the pools, an extent of impact of the fault based on the correspondence relationship of the logical device and the pool, and notify the identified extent of impact of the fault to an administrator.

Abstract: To provide a computer system, a management computer and a storage system, and a storage area allocation amount controlling method for improving I/O performance of the host computer. In a computer system comprising a storage system comprising one or more storage devices with storage areas, a host computer which uses a storage area of the storage device, and a management computer for dynamically allocating the storage area in response to an input/output request from the host computer; wherein the management computer monitors dynamic allocation of a real storage area to a storage area in the storage system, and calculates allocation increment amount to the allocated storage area based on the allocation frequency and the total amount of allocation.

Abstract: If both of LUN security information on storage apparatuses and configuration information on an iSNS server are acquirable, a management server makes reference to configuration situation of the LUN security acquired from a monitoring-target storage apparatus, thereby acquiring iSCSI initiator names which are permitted to access the storage apparatus. Moreover, the management server acquires, from the iSNS server, IP address of an iSCSI initiator name which does not exist on a monitoring-target host out of the iSCSI initiator names, then adding the IP address into monitoring-target nodes. Meanwhile, when an access from the management server to a monitoring-target node becomes impossible for a certain constant time-period due to a reason such that the monitoring-target node has been excluded from the network, the management server is capable of excluding the monitoring-target node from the monitoring targets on a GUI.

Abstract: The computer system includes: a first storage system having devices that are various components for storing data transmitted from a host computer; a second storage system having devices that are various components for storing data transmitted from the first storage system; and a management apparatus that manages the first and second storage systems. The management apparatus includes a storage unit that stores configuration information, performance information and threshold values used for performance management regarding the devices in the first and second storage systems connected to the management apparatus; and a setting section that adopts and sets, when internal management information and data are copied from the first storage system to the second storage system, threshold values assigned to the devices in the first storage system to the devices in the second storage systems.

Abstract: The management computer allocates a volume of an external storage device to a host so as to satisfy performance requirements specified from the host. The management computer selects a path that is formed including a first port of the storage device and a second port of the external storage device and that satisfies the performance requirements from the host, and then sets the priority. The management computer sets to the host the use authorization of a primary port and a secondary port that constitute a selected path and the use authorization of a second logical volume.

Abstract: If both of LUN security information on storage apparatuses and configuration information on an iSNS server are acquirable, a management server makes reference to configuration situation of the LUN security acquired from a monitoring-target storage apparatus, thereby acquiring iSCSI initiator names which are permitted to access the storage apparatus. Moreover, the management server acquires, from the iSNS server, IP address of an iSCSI initiator name which does not exist on a monitoring-target host out of the iSCSI initiator names, then adding the IP address into monitoring-target nodes. Meanwhile, when an access from the management server to a monitoring-target node becomes impossible for a certain constant time-period due to a reason such that the monitoring-target node has been excluded from the network, the management server is capable of excluding the monitoring-target node from the monitoring targets on a GUI.

Abstract: Access to the physical disks is differentiated as access from a host computer, and access based on processing (data migration processing, copy processing) for storage management. Whether to switch the state of the physical disks from a normal power consumption mode to a power saving mode is determined according to the access from the host computer after the access based on processing for storage management is complete, and the state of the physical disks are switched from the normal power consumption mode to the power saving mode based on the determination result.

Abstract: Responsive to a manipulation a storage administrator performs, the authority to manage the physical configuration of a storage system is either given or not given to the storage administrator. Specifically, a volume allocation program installed in a management computer gives the storage administrator the authority to manage the physical configuration of a storage system including a created volume, responsive to creation of a volume. A volume un-allocation program installed in the management computer verifies responsive to un-allocation of a volume whether the storage administrator is not given the authority to manage the physical configuration of the storage system including the un-allocated volume. Thus, by use of the two programs, the storage administrator can manage both a physical configuration and a logical configuration exclusive of other storage administrators.

Abstract: The management computer creates a connection between a virtual computer and a logical volume of a storage apparatus based on the application management information that stores a connection relationship between an application program and an I/O adapter, before a server computer provided with a hypervisor that logically divides the computer resources that include a CPU, a memory, and an I/O adapter and that operates them as an independent virtual computer starts an application program that has been stored into the storage apparatus on the virtual computer.

Abstract: Provided is a computer system for identifying all physical resources which have been allocated to logical units before to be subject to shredding and for performing shredding on the identified physical resources. All the physical resources related to the physical resources specified by a user to be subject to data erasing are selected using usage history for the storage system. Moreover, a shredding task for the selected physical resources is generated according to configuration information of the storage system and shredding is performed based on the generated task. Consequently, the data is completely erased.

Abstract: If both of LUN security information on storage apparatuses and configuration information on an iSNS server are acquirable, a management server makes reference to configuration situation of the LUN security acquired from a monitoring-target storage apparatus, thereby acquiring iSCSI initiator names which are permitted to access the storage apparatus. Moreover, the management server acquires, from the iSNS server, IP address of an iSCSI initiator name which does not exist on a monitoring-target host out of the iSCSI initiator names, then adding the IP address into monitoring-target nodes. Meanwhile, when an access from the management server to a monitoring-target node becomes impossible for a certain constant time-period due to a reason such that the monitoring-target node has been excluded from the network, the management server is capable of excluding the monitoring-target node from the monitoring targets on a GUI.

Abstract: Exercising integral management of storage apparatuses even when SANs are integrated or when the scale of a SAN expands. In response to an operation request from a management terminal, an integrated management computer collects the management information for storage apparatuses from management computers; selects, based on the collected management information, one or more management computers, to which the task of performing the requested operation is to be assigned; provides the selected management computer(s) with the ability to manage the storage apparatuses which are the management target for the management computer(s); collects pieces of process information from the management computer(s) with the management ability; and integrates and manages the collected pieces of process information.