Patent application number | Description | Published |
20080201542 | DATA MIGRATING METHOD TAKING END TIME INTO CONSIDERATION - There is provided a data migrating method including the steps of: calculating, in a case where data stored in a volume is migrated to another volume, a required period of time for migrating the data based on a size of data to be migrated and volume configuration information on the volume in which the migrated data is stored and the volume to which the data is to be migrated; determining a start time at which the data migration starts to generate a volume migration plan; setting a priority of the generated volume migration plan; prioritizing, in a case where a periods of time during which the generated volume migration plan is executed and a period of time during which an existing volume migration plan is executed are overlapped with each other, and changing the start time of at least one of those volume migration plans having a lower priority. | 08-21-2008 |
20080209158 | System and Method for Configuration Management of Storage System - A discrepancy between a management range of a user on a management computer and a management range of the user in a storage, is detected with respect to a volume held in the storage. Storage management information of the management computer stores a correspondence between an identifier of a volume group, and a identifier of the user. When a plurality of volumes are designated as a managed object of the user, the management computer references the storage management information, and obtains, from the storage, an identifier of the volume group to which the plurality of designated volumes belong. Next, the management computer references the storage management information, and determines whether or not the obtained volume group is in management range of the same user. | 08-28-2008 |
20080215843 | STORAGE AREA MANAGEMENT METHOD FOR A STORAGE SYSTEM - The load of managing a storage system is lessened. In a storage system where multiple logical volumes are included in a logical volume group and a copy of the logical volume group is made in a pool area different from the one to which the logical volume group belongs, a management computer adds to the pool area capacity when the capacity of a pool area exceeds a predetermined threshold. When the pool area includes multiple logical volume groups, the management computer requests the storage system to create a pool area for each of the logical volume groups and to create the logical volume groups respectively for the created pool areas. When the pool area includes one logical volume group, the management computer requests the storage system to make the capacity of the pool area coincide with the capacity of a pool area to which the logical volume group is copied. | 09-04-2008 |
20080263111 | STORAGE OPERATION MANAGEMENT PROGRAM AND METHOD AND A STORAGE MANAGEMENT COMPUTER - A managing computer (manager) manages replication of data areas inside a storage or among storages. A storage volume management module of the manager manages policy of the volume and its properties. When replication of a volume is set, a volume of a replication destination appropriate for a volume of a replication source is generated using the policy and the properties to form a replication pair. A route management module of the manager and its volume management module bring the policy and the properties of the volumes, and the policies and conditions of lines into conformity with one another. When any fault occurs in a line route used for data transfer during replication of the volume, a separate line route is utilized, and a fault countermeasure is taken for replication of the volumes in accordance with the policy and properties of the volumes. | 10-23-2008 |
20080288795 | METHOD AND SYSTEM FOR REDUCING POWER CONSUMPTION OF STORAGE SYSTEM SERVING AS TARGET DURING REMOTE COPYING EMPLOYING JOURNAL - A second storage system comprises a restore control unit for controlling restoration processing, in which a data element in a journal stored in a journal storage area is written into a secondary logical volume, and a storage device control unit for controlling a storage device in the second storage system. The restore control unit is provided with a function for suspending the restoration processing. A first value indicating the usage condition of the journal storage area in the second storage system is obtained, and the restore control unit suspends the restoration processing in accordance with the obtained first value. The storage device control unit then executes power saving on a storage device relating to the secondary logical volume. | 11-20-2008 |
20080320219 | COMPUTER AND METHOD FOR CONFIGURING DATA BACKUP ENVIRONMENT USED BY PLURALITY OF ASSOCIATIVELY OPERATED APPLICATIONS - The present invention stores application management information indicating respective applications constituting a federated application environment, which is a group constituted by a plurality of associatively operated applications. By referencing this application management information, a plurality of applications constituting this federated application environment are specified. A plurality of first logical volumes allocated to the specified plurality of applications, and a plurality of second logical volumes constituting the backup targets for data stored in the plurality of first logical volumes, are assigned to the same volume group. | 12-25-2008 |
20090013008 | Computer System, Managing Computer and Recovery Management Method - The invention provides a method for computing the appropriate capacity of a journal volume based on the operating patterns of backup and recovery performed by the user, and composing a recovery system that enables recovery to be performed in a short time using journals. The invention provides a computer system comprising a storage system | 01-08-2009 |
20090031320 | Storage System and Management Method Thereof - A storage system comprises a first storage apparatus having a volume for a host computer, a second storage apparatus connected to the first storage apparatus, and having a volume having a pair relationship with a first volume in the first storage apparatus, and a management apparatus connected to the first storage apparatus and the second storage apparatus. The management apparatus includes a user interface for setting an attribute of a function related to the volume of the first storage apparatus and an attribute of a function related to the volume of the second storage apparatus. The management apparatus compares the attribute of the function related to the first volume and the attribute of the function related to the second volume, and outputs the result of the comparison to the user interface. | 01-29-2009 |
20090240910 | Storage system, volume allocation method and management apparatus - This storage system includes a virtual storage selection unit for selecting a virtual storage unit to be allocated to a virtual server unit according to a virtual storage search policy table for searching the virtual storage unit based on a parameter input by a user when a command is issued for allocating the volume to the virtual server unit, a volume selection unit for selecting the type of volume to be allocated to the virtual storage unit allocated to the virtual server unit with the virtual storage allocation unit according to a volume type search policy table for searching the type of volume based on the parameter, and a volume allocation unit for creating the volume selected with the volume selection unit based on the parameter and allocating the created volume to the virtual storage unit allocated to the virtual server unit with the virtual storage allocation unit. | 09-24-2009 |
20090248759 | Backup management method in a remote copy environment - Provided is a computer system which is capable of backup operation with a minimum count of volumes in a remote copy environment when a disaster or the like causes a storage system to stop working normally. The computer system has a host computer, a first storage system, a second storage system, and a management computer. The first storage system contains a data volume which stores data requested by an application to be written. The second storage system contains a mirrored volume to which data stored in the data volume is copied. The computer system is characterized by being configured to receive an input of a policy about backup processing executed in backup volumes and set a configuration of the first storage system and a configuration of the second storage system under the received policy. | 10-01-2009 |
20090265522 | ARRANGEMENTS CHANGING AN OPERATION AUTHORITY RESPONSIVE TO ATTRIBUTE CHANGES - A computer system including a copy source volume and a copy target volume which may be selectably PAIRED or SPLIT. User management information stores: an entry indicating that a first user is permitted to effect a PAIR operation and a PATH operation; and, an entry indicating that a second user is permitted to effect a PATH operation. Operation management information indicates permitted PATH and PAIR operations in relation to each user and a volume's PAIR or SPLIT status, and stores: an entry indicating that the first user is permitted to effect the PAIR operation in which the PAIR status is PAIR, or is SPLIT WITH BACKUP DISABLED; and, an entry indicating that the second user is permitted to effect the PATH operations in which the PAIR status is SPLIT WITH BACKUP ENABLED. PAIR management information stores the PAIR status and the BACKUP ENABLED or DISABLED status. | 10-22-2009 |
20090300285 | COMPUTER SYSTEM, STORAGE SYSTEM AND METHOD FOR EXTENDING VOLUME CAPACITY - The object of the present invention is to prevent distribution of a storage range to a volume from an inappropriate disk drive comparing with use of the volume as a result of an automatic extension of a volume capacity. A computer system has a storage system including a physical storage device, a host computer, and a management computer. The storage system includes a plurality of kinds of physical storage devices physically dividing into two segments or more the volume and records as constitution information the correspondence between each segment and the volume using the segment. And the storage system records the kind of physical storage device to be allocated to the volume and selects the physical storage device according to the kind of stored physical storage device for allocation of the segment when the host computer performs an I/O access to the volume. | 12-03-2009 |
20090319751 | STORAGE AREA DYNAMIC ASSIGNMENT METHOD - A storage system allocates a data storage area in response to an access request from a first computer if the capacity of a first physical storage device configuring a first logical storage area, provided to the first computer, is equal to or lower than a predetermined threshold. The storage system associates the first logical storage area with another physical storage device, which is different from the first physical storage device associated with a second logical storage area provided to the first computer and a second computer, and allocates a data storage area from the another physical storage device if the capacity of the first physical storage device associated with the first logical storage area exceeds the predetermined threshold. | 12-24-2009 |
20100036896 | Computer System and Method of Managing Backup of Data - A backup is continued in a computer system even one storage device is stopped. In the computer system, a first storage device, upon reception of a data write request to a first storage area, stores the data in the first storage area and a second storage area, and transmits the data to a second storage device. The second storage device stores the received data in a third storage area and a fourth storage area. The first storage device, upon reception of a snapshot creation request, suspends storing of the data in the second storage area, while the second storage device, upon reception of the snapshot creation request, suspends storing of the data in the fourth storage area at timing that the same data is stored in the second storage area and the fourth storage area, and after storing of the data is suspended, transmits an identifier equal to an identifier of the second storage area to an inquiry transmission source as an identifier of the fourth storage area. | 02-11-2010 |
20100042797 | COMPUTER SYSTEM, DATA MIGRATION MONITORING METHOD AND DATA MIGRATION MONITORING PROGRAM - A management computer monitors an allocated capacity of a source virtual volume and an allocated capacity of a virtual pool having a storage area allocated to a destination virtual volume in a storage, judges whether the allocated capacity of the source virtual volume can be covered in the virtual pool or not, and informs the user of a result that data migration fails when the allocated capacity of the source virtual volume cannot be covered. When the allocated capacity of the source virtual volume cannot be covered, the management computer uses another storage area to increase the capacity of the virtual pool. Accordingly, when data migration is performed between the virtual volumes, capacities of physical areas allocated to the source virtual volume and the destination virtual volume can be grasped so that the data migration can be performed accurately between the source virtual volume and the destination virtual volume. | 02-18-2010 |
20100058012 | Backup Data Management Method in Which Differential Copy Time is Taken Into Account - Provided is a computer system, comprising a storage system and a management computer. The management computer manages differential copy start times, differential data amounts of first pairs, and a data amount that can be copied in differential copy per unit time; identifies one of the first pairs for which the differential copy is to be started and a start time of the differential copy; subtracts the data amount of differential copy per unit time that is allocated to the identified one of the first pairs from a differential data amount of the identified first pairs; add the unit time to the identified start time; judges that the differential copy has been finished at a time when the subtracted differential data amount reaches zero or less; and calculates time zones in which the first pairs execute differential copy based on the time at which differential copy has been finished. | 03-04-2010 |
20100070731 | STORAGE SYSTEM HAVING ALLOCATION-ON-USE VOLUME AND POWER SAVING FUNCTION - A storage system includes physical memory devices, pool volumes, including real areas, an allocation-on-use (AOU) volume including virtual areas, and a controller allocating a non-allocated real area in a pool including the pool volumes to a virtual area corresponding to an address specified by a writing command when no real area is allocated to the virtual area, and writing data corresponding to the received writing command to the allocated real area. The controller moves data stored in all the real areas in a first pool volume allocated to the AOU volume to a second pool volume, and changes a power consuming status of the physical memory device constituting the first pool volume to a power saving mode after the data has been moved. | 03-18-2010 |
20100077158 | COMPUTER SYSTEM AND CONTROL METHOD THEREFOR - A physical storage area that is allocated to an unused area of a virtual volume is removed. A management unit sends a request to a server computer to make every piece of data stored in a first logical volume migrate to a second logical volume. The server reads all the data out of the first logical volume and writes the data in the second logical volume. A storage system that includes the first logical volume and the second logical volume allocates a physical storage area to an area of the second logical volume where the data is to be written, and writes the data in the allocated physical storage area. The storage system then deletes the first logical volume. | 03-25-2010 |
20100082900 | MANAGEMENT DEVICE FOR STORAGE DEVICE - The present invention provides effective use of a storage resource in a system where a storage area of a logical volume is dynamically extended and reduced. In an information processing system including a management device communicably connected to a storage device that can dynamically change a storage capacity of a virtual volume allocated to a host computer, when a used amount of a certain storage pool exceeds a threshold set in the storage pool, the management device sends to the storage device, an instruction to migrate a predetermined number of virtual volumes, sequentially selected in ascending order of capacity increasing rate, so that another storage pool different from the certain storage pool may be used as a creation source. At this time, as a migration destination, the management device uses, the storage pool having, for example, an attribute of the storage resource identical to that of the certain storage device. | 04-01-2010 |
20100082925 | MANAGEMENT COMPUTER USED TO CONSTRUCT BACKUP CONFIGURATION OF APPLICATION DATA - According to the present invention, it is possible to construct a backup configuration of a particular application data, without influencing data of another application. A management computer is coupled to a host computer on which an application operates, and to a storage apparatus that includes a plurality of volume groups each having one or more logical volumes. At least one of the logical volumes is allocated to the application. The management computer includes a volume group overlapping use determination part and a backup policy determination part. When the backup of the volume group to which one logical volume belongs is configured, the volume group overlapping use determination part determines whether there is another application that uses the volume group. The backup policy determination part determines whether there is set, for another volume group, backup policy information same as that set for the application. | 04-01-2010 |
20100082934 | COMPUTER SYSTEM AND STORAGE SYSTEM - In order to manage and operate Pool created in storage system A and a virtual volume using Pool in storage system B, it is required to copy the virtual volume of storage system A into a virtual volume of storage system B and new storage regions for copy of virtual volume into storage system B are needed. Storage system B acquires configuration information of Pool and a virtual volume of storage system A and inputs a logical volume included in Pool of storage system A to storage system B based on the acquired configuration information. Storage system B transforms the acquired configuration information for use in storage system B and creates Pool and a virtual volume from the input logical volume based on the transformed configuration information. | 04-01-2010 |
20100088465 | CONTROL DEVICE OF A STORAGE SYSTEM COMPRISING STORAGE DEVICES OF A PLURALITY OF TYPES - A control device of a storage system including a CPU which receives input information including at least a size and an archive deadline of data which is stored in storage devices; wherein data management information includes a write threshold value regarding one type of storage devices, the write threshold value indicating a write limit number to the one type of storage devices, wherein the CPU: selects a storage device which stores data corresponding to the information which is input to an input device, based on the information which is input to the input device and the data management information which is stored in the memory; CPU stores to the selected storage device, the data corresponding to the information which is input to the input device; and, registers to the data management information in the memory, at least one of the information which is input to the input device. | 04-08-2010 |
20100088485 | FAILURE MANAGEMENT METHOD IN THIN PROVISIONING TECHNOLOGY FOR STORAGE - A pool is replicated in the unit of volume providing the pool, and when a physical device is blocked, any volume blocked in the pool is changed to the replicated volume so that the pool and a virtual volume can be recovered. With such a configuration, when any pool or virtual volume is blocked due to blockage of any volume providing the thin provisioning function, volume recovery can be swiftly performed without changing the virtual volume used by a host computer, and consumption of storage resources needed therefor can be suppressed. | 04-08-2010 |
20100235573 | Computer and method for managing storage apparatus - A management computer manages the pool application information that indicates a pool application for a pool and the application condition information that indicates the condition for the pool application. The management computer calculates an excess storage capacity based on a pool usage status for the pool. The management computer specifies a pool application for the pool and the condition for the pool application based on the pool application information and the application condition information. The management computer judges whether the specified condition is satisfied even in the case in which a storage area having a storage capacity equivalent to or less than the calculated excess storage capacity is deleted from the pool. In the case in which the result of the judgment is positive, the management computer defines a capacity equivalent to or less than the excess storage capacity as an unused capacity. | 09-16-2010 |
20100268903 | COMPUTER SYSTEM COMPRISING STORAGE OPERATION PERMISSION MANAGEMENT - The system of the present invention enhances the security of settings and operations in a storage device, and copes with numerous changes of the operational status of work executed within a computer system. When it becomes necessary to issue an operating command to the storage, storage operation propriety is determined on the basis of the operational status of the work and definition of operation permission for each work operation state. | 10-21-2010 |
20100325378 | DATA MIGRATING METHOD TAKING END TIME INTO CONSIDERATION - There is provided a data migrating method including the steps of: calculating, in a case where data stored in a volume is migrated to another volume, a required period of time for migrating the data based on a size of data to be migrated and volume configuration information on the volume in which the migrated data is stored and the volume to which the data is to be migrated; determining a start time at which the data migration starts to generate a volume migration plan; setting a priority of the generated volume migration plan; prioritizing, in a case where a periods of time during which the generated volume migration plan is executed and a period of time during which an existing volume migration plan is executed are overlapped with each other, and changing the start time of at least one of those volume migration plans having a lower priority. | 12-23-2010 |
20110040935 | MANAGEMENT COMPUTER FOR MANAGING STORAGE SYSTEM CAPACITY AND STORAGE SYSTEM CAPACITY MANAGEMENT METHOD - A management system, which manages a plurality of storage systems, in a case where belonging to a storage system having a first function constitutes a condition for allocating a plurality of volumes to a host device, retrieves the storage system having the first function from among the plurality of storage systems, selects one or more unallocated logical volumes included in the retrieved storage system, acquires a logical volume capacity included in the selected logical volumes and notifies an output device of the acquired capacity as the capacity allocatable to the host device. | 02-17-2011 |
20110041004 | BACKUP MANAGEMENT METHOD BASED ON MODE OF FAILURE - A storage management program is provided with a function of determining a suspension/continuation of a remote backup based on an operation-at-failure management table, and accomplishes the suspension/continuation of the backup based on the application in which a failure has occurred and the mode of this failure. The storage management program is also provided with a function of computing a change in the quantity of data from the last backup before the occurrence of the failure until the first backup after the occurrence of the failure, and determining the suspension/continuation of the backup, enabling to suspend/continue the backup in line with the operating status of the application. | 02-17-2011 |
20110078405 | COMPUTER SYSTEM MANAGEMENT APPARATUS AND MANAGEMENT METHOD FOR THE COMPUTER SYSTEM - Provided is a computer system including a plurality of storage apparatuses, in which, if the storage apparatuses employ an external mapping/connection system, the plurality of storage apparatuses can efficiently use each other's storage resources. The computer system includes a plurality of storage apparatuses and a management computer for managing the storage apparatuses. The management computer determines whether or not it is possible to perform external connection between the plurality of storage apparatuses and whether or not it is possible to divert the use of a storage device in one storage apparatus to another storage apparatus, on the basis of a criteria table, and if it is possible to perform external connection between the plurality of storage apparatuses, it is carried out and, if it is not possible, the management computer diverts the use of a storage device in one storage apparatus to another storage apparatus. | 03-31-2011 |
20110078494 | MANAGEMENT METHOD AND SYSTEM FOR MANAGING REPLICATION BY TAKING INTO ACCOUNT CLUSTER - A management system, which manages a host computer and a storage system, holds cluster information, specifies an active-state host computer and an inactive-state host computer based on a backup instruction specifying a virtual host identifier, determines the need for executing a replication for disaster recovery use, and when necessary, executes this replication for disaster recovery use in combination with a replication for backup use. | 03-31-2011 |
20110153967 | STORAGE AREA DYNAMIC ASSIGNMENT METHOD - A storage system allocates a data storage area in response to an access request from a first computer if the capacity of a first physical storage device configuring a first logical storage area, provided to the first computer, is equal to or lower than a predetermined threshold. The storage system associates the first logical storage area with another physical storage device, which is different from the first physical storage device associated with a second logical storage area provided to the first computer and a second computer, and allocates a data storage area from the another physical storage device if the capacity of the first physical storage device associated with the first logical storage area exceeds the predetermined threshold. | 06-23-2011 |
20110185130 | COMPUTER SYSTEM AND STORAGE CONSOLIDATION MANAGEMENT METHOD - In order to properly use resources according to the application or search for available resources in an environment in which a block storage apparatus and a file storage apparatus coexist, knowledge and experience of applications and storage apparatuses, as well manpower were required. Thus, a policy pre-defined with a preferred type of interface and a preferred type of storage area for each type of application that is loaded in the host computers is predetermined, configuration information is collected from each storage apparatus, each intermediate storage apparatus and each host computer, respectively, a combination of a storage apparatus, an intermediate storage apparatus and a host computer that is suitable for the type of application designated by a user is detected based on the collected configuration information of each storage apparatus, each intermediate storage apparatus and each host computer, the policy, and the type of application designated by the user, and the detected combination is presented to the user. | 07-28-2011 |
20110208940 | Storage system and method for operating storage system - In a storage system | 08-25-2011 |
20110258412 | COMPUTER SYSTEM, DATA MIGRATION MONITORING METHOD AND DATA MIGRATION MONITORING PROGRAM - A management computer monitors an allocated capacity of a source virtual volume and an allocated capacity of a virtual pool having a storage area allocated to a destination virtual volume in a storage, judges whether the allocated capacity of the source virtual volume can be covered in the virtual pool or not, and informs the user of a result that data migration fails when the allocated capacity of the source virtual volume cannot be covered. When the allocated capacity of the source virtual volume cannot be covered, the management computer uses another storage area to increase the capacity of the virtual pool. Accordingly, when data migration is performed between the virtual volumes, capacities of physical areas allocated to the source virtual volume and the destination virtual volume can be grasped so that the data migration can be performed accurately between the source virtual volume and the destination virtual volume. | 10-20-2011 |
20110283074 | Backup management method in a remote copy environment - Provided is a computer system which is capable of backup operation with a minimum count of volumes in a remote copy environment when a disaster or the like causes a storage system to stop working normally. The computer system has a host computer, a first storage system, a second storage system, and a management computer. The first storage system contains a data volume which stores data requested by an application to be written. The second storage system contains a mirrored volume to which data stored in the data volume is copied. The computer system is characterized by being configured to receive an input of a policy about backup processing executed in backup volumes and set a configuration of the first storage system and a configuration of the second storage system under the received policy. | 11-17-2011 |
20110289265 | STORAGE SYSTEM AND STORAGE MANAGEMENT METHOD FOR CONTROLLING OFF-LINE MODE AND ON-LINE OF FLASH MEMORY - An object of the present invention is to provide a storage system and storage management method, which prevent a problem in the operation of stored data from being caused by unknown states of volume information and life information, when flash memories are placed in off-line mode and again placed in on-line mode. According to the present invention, there is provided a storage system | 11-24-2011 |
20110296195 | STORAGE DEVICE AND ITS CONTROL METHOD - Provided is a storage device which partitions data from a host into multiple partitioned data and distributes, encrypts and stores them together with a parity to and in multiple memory mediums. This storage device executes processing of restoring the partitioned data or the parity stored in a memory medium to be subject to encryption re-key based on decrypted data of the partitioned data or the parity stored in each memory medium other than the memory medium to be subject to encryption re-key among the multiple memory mediums, storing the restored partitioned data or the parity in a backup memory medium while encrypting the restored partitioned data or the parity with a new encryption key, and thereafter interchanging the backup memory medium and the memory medium to be subject to encryption re-key so that the backup memory medium will be a memory medium configuring the parity group and the memory medium to be subject to encryption re-key will be the backup memory medium. | 12-01-2011 |
20110307658 | STORAGE SYSTEM AND METHOD OF OPERATING THE SAME - A storage system comprising a storage apparatus having a storage control unit communicatively coupled to an external apparatus, forming a plurality of virtual storage areas each serving as a unit storage area used by the external apparatus as a data storing area, using a unit logical storage area selected among a plurality of unit logical storage areas provided by a physical storage medium, linking to each of the virtual storage areas, and any one of a plurality of attributes each representing a storage state of data stored in the virtual storage area, and maintaining the link wherein the storage control unit | 12-15-2011 |
20110314239 | COMPUTER SYSTEM AND SYSTEM CONTROL METHOD - Operation of an environment that supports both host-based replication and array-based replication is realized. According to the present invention, data in the first storage area is copied first to the second storage area using an array-based replication engine. In this case, the execution result of the replication is managed using a flag from which the copy timing can be known. In addition, data in the first storage area is copied to the third storage area using a host-based replication engine, and further, data in the third storage area is copied to the fourth storage area. Then, when data in the second storage area is restored to the first storage area, data in the fourth storage area is returned to the third storage area so that the third storage area has data of the same time as the second storage area (see FIG. | 12-22-2011 |
20120011308 | CONTROL DEVICE OF A STORAGE SYSTEM COMPRISING STORAGE DEVICES OF A PLURALITY OF TYPES - A control device of a storage system that includes a plurality of storage devices including a first type of storage device, including: a memory which stores an archive deadline of archive target data which are a target of archiving by the storage system and a warranty deadline which is a quality warranty deadline of parity groups configured by two or more of the first type of storage devices; a controller which stores the archive target data in the parity groups configured by two or more of the first type of storage device, and wherein the parity group storing the archive target data is a parity group whose warranty deadline is near the archive deadline of the archive target data, among a plurality of the parity groups. | 01-12-2012 |
20120011394 | MANAGEMENT METHOD AND SYSTEM FOR MANAGING REPLICATION BY TAKING INTO ACCOUNT CLUSTER - A management system, which manages a host computer and a storage system, holds cluster information, specifies an active-state host computer and an inactive-state host computer based on a backup instruction specifying a virtual host identifier, determines the need for executing a replication for disaster recovery use, and when necessary, executes this replication for disaster recovery use in combination with a replication for backup use. | 01-12-2012 |
20120030440 | STORAGE SYSTEM GROUP INCLUDING SCALE-OUT STORAGE SYSTEM AND MANAGEMENT METHOD THEREFOR - A management system is coupled to a storage system group including a scale-out storage system (a virtual storage system). The management system has storage management information, which includes information denoting, for each storage system, whether or not a storage system is a component of a virtual storage system. The management system, based on the storage management information, determines whether or not a first storage system is a component of a virtual storage system, and in a case where the result of this determination is affirmative, identifies, based on the storage management information, a second storage system, which is a storage system other than the virtual storage system that includes the first storage system, and allows a user to perform a specific operation only with respect to this second storage system. | 02-02-2012 |
20120079226 | COMPUTER SYSTEM AND COMPUTER SYSTEM MANAGEMENT METHOD - A computer system of the present invention selects and executes an appropriate action in a case where capacity of a pool that provides a real storage area to a virtual logical volume is insufficient. A management computer determines, based on a utilization status of each pool, whether or not there exists a prescribed pool that requires pool size expansion. The management computer, in a case where the prescribed pool is detected, selects at least any one of a volume addition method for adding an unused real volume to the prescribed pool and a data migration method for migrating data of the virtual logical volume to another pool other than the prescribed pool, and expands a pool size of the prescribed pool in accordance with the selected method. | 03-29-2012 |
20120089797 | COMPUTER SYSTEM, STORAGE MANAGEMENT COMPUTER, AND STORAGE MANAGEMENT METHOD - A storage apparatus includes a storage unit for storing data read/written by a host computer and provides the host computer with a storage area of the storage unit as one or more volumes. The storage management computer includes a first memory for storing task information including contents of an operation process performed on the storage apparatus, as well as a scheduled starting time and scheduled termination time of a process, and, in the case where first task information is stored in the first memory, when resources used in the process of second task information stored in the first memory are the same as resources used in the process of the first task information, the storage management computer computes times required for executing the first task information and the second task information, based on a time during which the processes of the first and second task information conflict with each other. | 04-12-2012 |
20120110358 | POWER CONTROL OF SECONDARY COPY STORAGE BASED ON JOURNAL STORAGE USAGE AND ACCUMULATION SPEED RATE - Arrangements having multiple second storage systems which each include a restore control unit for controlling restoration processing, in which a data element in a journal stored in a journal storage area is written into a secondary logical volume, and a storage device control unit for controlling a storage device in the second storage system. The restore control unit is provided with a function for suspending the restoration processing. A first value indicating the usage condition of the journal storage area in the second storage system is obtained, and the restore control unit suspends the restoration processing in accordance with the obtained first value. The storage device control unit then executes power saving on a storage device relating to the secondary logical volume. | 05-03-2012 |
20120124321 | COMPUTER SYSTEM AND CONTROL METHOD THEREFOR - A physical storage area that is allocated to an unused area of a virtual volume is removed. A management unit sends a request to a server computer to make every piece of data stored in a first logical volume migrate to a second logical volume. The server reads all the data out of the first logical volume and writes the data in the second logical volume. A storage system that includes the first logical volume and the second logical volume allocates a physical storage area to an area of the second logical volume where the data is to be written, and writes the data in the allocated physical storage area. The storage system then deletes the first logical volume. | 05-17-2012 |
20120173839 | STORAGE AREA DYNAMIC ASSIGNMENT METHOD - A storage system allocates a data storage area in response to an access request from a first computer if the capacity of a first physical storage device configuring a first logical storage area, provided to the first computer, is equal to or lower than a predetermined threshold. The storage system associates the first logical storage area with another physical storage device, which is different from the first physical storage device associated with a second logical storage area provided to the first computer and a second computer, and allocates a data storage area from the another physical storage device if the capacity of the first physical storage device associated with the first logical storage area exceeds the predetermined threshold. | 07-05-2012 |
20120179887 | DATA MIGRATING METHOD TAKING END TIME INTO CONSIDERATION - A data migrating method including calculating, in a case where data stored in a volume is migrated to another volume, a required period of time for migrating the data based on a size of data to be migrated and volume configuration information on the volume in which the migrated data is stored and the volume to which the data is to be migrated, determining a start time at which the data migration starts to generate a volume migration plan, setting a priority of the generated volume migration plan, prioritizing, in a case where a periods of time during which the generated volume migration plan is executed and a period of time during which an existing volume migration plan is executed are overlapped with each other, and changing the start time of at least one of those volume migration plans having a lower priority. | 07-12-2012 |
20120185645 | STORAGE SYSTEM AND MANAGEMENT METHOD THEREOF - A storage system including a first storage apparatus having at least one volume to be provided to a host computer, a second storage apparatus connected to the first storage apparatus and having a second volume having a pair relationship with a first volume, and a management apparatus. The management apparatus includes a user interface for setting an attribute of functions related to at least one volume of the first storage apparatus and at least one volume of the second storage apparatus. The management apparatus compares an attribute of a first function related to the first volume and an attribute of a second function related to the second volume, and sets the attribute of the second function to be consistent with the attribute of the first function. The management apparatus there commands restoration of the first volume or the second volume to a state before the set the attribute operation. | 07-19-2012 |
20120226857 | COMPUTER AND METHOD FOR MANAGING STORAGE APPARATUS - A management computer manages the pool application information that indicates a pool application for a pool and the application condition information that indicates the condition for the pool application. The management computer calculates an excess storage capacity based on a pool usage status for the pool. The management computer specifies a pool application for the pool and the condition for the pool application based on the pool application information and the application condition information. The management computer judges whether the specified condition is satisfied even in the case in which a storage area having a storage capacity equivalent to or less than the calculated excess storage capacity is deleted from the pool. In the case in which the result of the judgment is positive, the management computer defines a capacity equivalent to or less than the excess storage capacity as an unused capacity. | 09-06-2012 |
20120226885 | COMPUTER SYSTEM AND CONTROL METHOD THEREFOR - To reduce the number of data copies between volume pools by preventing occurrence of unevenness of resource usage between the pools, provided is a computer system including: storage apparatus; and host computer coupled to the storage apparatus, the storage apparatus including physical storage device, the storage apparatus holding information associating virtual volumes and pools each including real storage areas of the physical storage device, the storage apparatus allocating, to the virtual volume of a write destination designated by the host computer, the real storage areas included in each of the plurality of pools corresponding to the virtual volume of the write destination, and storing the data therein, the computer system being configured to: determine, based on the information held by the storage apparatus, orders of priority of the volumes of the write destination by the host computers; and hold the determined orders of priority. | 09-06-2012 |
20120260051 | COMPUTER SYSTEM, MANAGEMENT SYSTEM AND DATA MANAGEMENT METHOD - A controller of a storage system migrates data managed in a virtual storage area of a virtual logical volume from an assigned real storage area to a real storage area of another storage medium with different characteristics according to predetermined conditions, and also executes copy processing for copying, to a second virtual logical volume, data in a copy target area being at least a part of a virtual storage area of a first virtual logical volume. When the second virtual logical volume is used, a management system controls the controller so as to migrate data of at least a part of the data that has been replicated in the second virtual logical volume by the copy processing, to a real storage area of the storage medium with more favorable characteristics. | 10-11-2012 |
20120297119 | STORAGE SYSTEM AND STORAGE MANAGEMENT METHOD FOR CONTROLLING OFF-LINE MODE AND ON-LINE OF FLASH MEMORY - A method for drying workpieces includes immersing the workpieces in a liquid bath, raising the workpieces with a first holder until a central opening of the workpieces is visible above liquid surface, then using a dry second holder rod inserted through said central opening to continue raising process. Due to this, a drying portion of the workpieces is not held by a wet holding mechanism. | 11-22-2012 |
20120331248 | STORAGE MANAGEMENT SYSTEM AND STORAGE MANAGEMENT METHOD - An embodiment of this invention is a storage management system including a processor and a storage device to manage a storage system having one or more copy functions. The processor locates data designated to determine a backup method. The storage device stores copy function management information on the one or more copy functions of the storage system. The processor refers to the copy function management information to ascertain the unit of copy operation of each of the one or more copy functions. The processor determines a candidate for a copy function of the storage system to be used to back up the designated data depending on the data configuration in a volume holding the designated data and the unit of copy operation of the candidate for the copy function. | 12-27-2012 |
20130124873 | STORAGE DEVICE AND ITS CONTROL METHOD - A storage device partitions data from a host into multiple partitioned data and distributes, encrypts and stores them together with a parity in multiple memory mediums. This storage device executes processing of restoring the partitioned data or the parity stored in a memory medium subjectable to encryption re-key based on decrypted data of the partitioned data or the parity stored in each memory medium other than the memory medium subjectable to encryption re-key among the multiple memory mediums, storing the restored partitioned data or the parity in a backup memory medium while encrypting the restored partitioned data or the parity with a new encryption key, and thereafter interchanging the backup memory medium and the memory medium subjectable to encryption re-key so that the backup memory medium will be a memory medium configuring the parity group and the memory medium subjectable to encryption re-key will be the backup memory medium. | 05-16-2013 |
20130145092 | MANAGEMENT SYSTEM AND MANAGEMENT METHOD OF STORAGE SYSTEM THAT PERFORMS CONTROL BASED ON REQUIRED PERFORMANCE ASSIGNED TO VIRTUAL VOLUME - A storage system manages a pool to which multiple VVOLs (virtual logical volumes conforming to thin provisioning) are associated, assigns a real area (RA) from any tier in an available tier pattern associated with a write-destination VVOL to a write-destination virtual area (VA), and carries out a reassignment process for migrating data inside this RA to an RA of a different tier than the tier having this RA based on the access status of the RA assigned to the VA. A management system assumes that a specified tier has been removed from the available tier pattern of a target VVOL, predicts the performance of the target VVOL and all the other VVOL associated with the pool to which the target VVOL is associated, determines whether or not there is a VVOL for which the predicted performance is lower than a required performance, and when such a VVOL does not exist, instructs the storage system to remove the specified tier from the available tier pattern of the target VVOL. | 06-06-2013 |
20130311740 | METHOD OF DATA MIGRATION AND INFORMATION STORAGE SYSTEM - An example of the invention is a method of data migration from a source volume including storage areas of a plurality of source storage tiers different in performance capability to a destination volume including storage areas of a plurality of destination storage tiers different in performance capability, data relocation being performed among the plurality of source storage tiers in accordance with accesses to the source volume during the data migration. The method includes: starting the data migration between volumes from the source volume to the destination volume; acquiring information on a data arrangement in the source volume determined based on an access history to the source volume during the data migration between volumes from the source volume to the destination volume; and determining a data arrangement in the destination volume during the data migration between volumes based on the data arrangement indicated by the acquired information. | 11-21-2013 |
20130311743 | COMPUTER SYSTEM AND CONTROL METHOD THEREFOR - A physical storage area that is allocated to an unused area of a virtual volume is removed. A management unit sends a request to a server computer to make every piece of data stored in a first logical volume migrate to a second logical volume. The server reads all the data out of the first logical volume and writes the data in the second logical volume. A storage system that includes the first logical volume and the second logical volume allocates a physical storage area to an area of the second logical volume where the data is to be written, and writes the data in the allocated physical storage area. The storage system then deletes the first logical volume. | 11-21-2013 |
20140025888 | STORAGE SYSTEM AND METHOD FOR EFFICIENTLY UTILIZING STORAGE CAPACITY WITHIN A STORAGE SYSTEM - In a storage system | 01-23-2014 |
20140040583 | STORAGE SYSTEM GROUP INCLUDING SCALE-OUT STORAGE SYSTEM AND MANAGEMENT METHOD THEREFOR - A management system is coupled to a storage system group including a scale-out storage system (a virtual storage system). The management system has storage management information, which includes information denoting, for each storage system, whether or not a storage system is a component of a virtual storage system. The management system, based on the storage management information, determines whether or not a first storage system is a component of a virtual storage system, and in a case where the result of this determination is affirmative, identifies, based on the storage management information, a second storage system, which is a storage system other than the virtual storage system that includes the first storage system, and allows a user to perform a specific operation only with respect to this second storage system. | 02-06-2014 |
20140304451 | COMPUTER SYSTEM AND MANAGEMENT SYSTEM - A storage system, which comprises multiple memory cells and a storage controller, wherein the storage controller manages cell mode information, which either directly or indirectly denotes the number of bits to be stored in multiple memory cells. The cell mode information can be changed in accordance with a request from a management system. | 10-09-2014 |
20150032983 | STORAGE MANAGEMENT SYSTEM AND STORAGE MANAGEMENT METHOD - An embodiment of this invention is a storage management system including a processor and a storage device to manage a storage system having one or more copy functions. The processor locates data designated to determine a backup method. The storage device stores copy function management information on the one or more copy functions of the storage system. The processor refers to the copy function management information to ascertain the unit of copy operation of each of the one or more copy functions. The processor determines a candidate for a copy function of the storage system to be used to back up the designated data depending on the data configuration in a volume holding the designated data and the unit of copy operation of the candidate for the copy function. | 01-29-2015 |
20150081965 | DATA MANAGEMENT SYSTEM AND DATA MANAGEMENT METHOD - A storage system assigns a real area from a pool to a virtual area in a virtual volume, and stores data into the real area. The pool comprises a plurality of real areas based on a plurality of types of storage devices with different characteristics, and the plurality of real areas are managed as a plurality of tiers depending on the characteristics of the storage devices. Moreover, the storage system moves the data from one tier to another tier in the pool, for each real area. | 03-19-2015 |