摘要:
A storage system is configured as tiered storage (composed of top tier storage apparatuses and second tier storage apparatus at least). The top tire storage apparatus gathers the volume-to-volume map information and power boundary information from second tier storage apparatuses, which are connected to the top tier storage apparatus. The top tier storage apparatus manages the second tier storage system by appropriate method directed by the second tier storage apparatus. In another method for managing HDDs' spin-down and spin-up, “spin-down/up” status are kept in the top tier storage apparatus and the second tier storage apparatus. The top tier storage apparatus forwards the “spin-down/up” request to the second tier storage apparatus when the top tier storage apparatus receives a “spin-down/up” request. The second tier storage apparatus checks if all volumes in a parity group have “spin-down” status. In the case of all volumes in a parity group have “spin-down” status, HDD in the parity group are spin-downed.
摘要:
Systems for backing up the data of an IT system by utilizing server or storage virtualization technology to create and move logical IT infrastructures dynamically. A virtualized IT system provides a server resource pool and a storage resource pool composed from multiple physical devices either within a datacenter or a globally located plurality of datacenters. The virtual server and the storage volume provisioned from those pools will be paired to form the virtual infrastructure. In other words, the virtual infrastructure becomes a logical IT environment build with the required computing and storage resources needed in order to execute specific applications. The virtual infrastructure can also be migrated within/among datacenter sites.
摘要:
A unified storage system for executing a variety of types of storage control software using a single standardized hardware platform includes multiple storage control modules connected to storage devices for storing data related to input/output (I/O) operations. A first type of storage control software is initially installed and executed on a first storage control module for processing a first type of I/O operations. A management module replaces the first type of storage control software by installing a second type of storage control software onto the first storage control module. When the second type of storage control software is installed and executed, the first storage control module processes a second type of I/O operation, different from the first type of I/O operation. Control of volumes originally accessed by the first storage control module may be transferred to a second storage control module having the first type of storage control software installed.
摘要:
The system is composed of the storage apparatuses with dynamic chunk allocation capabilities, the centralized management computer. Some storage apparatuses have the extra HDDs or volumes for providing extra capacity (extra chunks), which are concealed by a secret key. The storage apparatus with the closed segment has the key management program and key management table. The centralized management computer has the storage on demand management program, the pending request table, the priority table and the master key table. The storage apparatus may connect to the other storage apparatuses for sharing the extra capacities in the closed segment. The storage apparatus issues the chunk addition request to the centralized management computer. The centralized management computer provides a key according to the priority table and the master key table. The centralized management computer may provide the key according to the chunk consumption rate reported by the storage apparatus and/or remaining capacity in the other storage apparatuses.
摘要:
In an information processing system including a computer device, and a storage device storing data used by the computer device, the region in which the data is held is managed in association with a change, over the passage of time in the performance and availability required of the data holding region. The computer device includes a storage device managing unit for managing the storage device which stores data used by the computer device. The storage device managing unit periodically monitors temporal characteristics information, and moves data, if the storage region having functional characteristics corresponding to the temporal characteristics information is different from the storage region to which the data is currently assigned.
摘要:
Provided is a storage medium management system, in which when the same data as that stored in a first physical storage area is stored in a second physical storage area, a storage system connected to a host computer compares the number of remaining rewritable times for the first physical storage area and the number of remaining rewritable times for the second physical storage area with each other. When the number of remaining rewritable times for the first physical storage area is less than the number of remaining rewritable times for the second physical storage area, the storage system writes data written from the host computer to the second physical storage area and copies the data written in the second physical storage area to the first physical storage area.
摘要:
When a disk device corresponding to a logical volume is started, a disk system determines and starts a disk device and a fan to be started, while comprehensively considering heat quantity generated by the disk device to be started, the cooling capacity of the fan, and the electric power consumption of the fan or the electric power consumption of the disk device.
摘要:
Exemplary embodiments provide data volume migration with migration log confirmation in which the same data volume identifier is used beyond migration for a data volume. In one embodiment, data is migrated to or from a data volume in a data storage area of a storage apparatus. The data being migrated is identified by a data volume identifier which remains unchanged after migration. The same data volume identifier is used in both the source data volume and the destination data volume. The storage apparatus stores migration log information of the data volume. The migration log information includes the data volume identifier, a source name of the source data volume of the data being migrated, a destination name of the destination data volume of the data being migrated, and log information on any prior migration of the data being migrated.
摘要:
A managing computer is connected to object computers, the managing computer being connected to the object computers and the storage which is connected to the object computers for managing the object computers and the storage. The managing computer includes an interface for receiving volume managing information relating to storage areas in the storage, file sharing information relating to file sharing in the storage which is provided by the object computers and storage managing information relating to the storage, and a control unit which specifies the object computers or the storage to be preset controlled according to the volume managing information, the file sharing information and the storage managing information for managing the object computers and the storage by instructing the specified object computers or the specified storage to carry out the preset control.
摘要:
A first storage system includes a first storage area for storing data written by a computer. A second storage system includes a second storage area to which the data stored in the first storage area migrates. A third storage system includes a virtual storage area corresponding to the second storage area. An access request to the virtual storage area is converted into an access request to the second storage area to be issued. A management computer transmits, to the third storage system, an instruction to migrate the data of the second storage area to a third storage area of the third storage system based on a determination result between a value of the data migrated to the second storage area and a predetermined threshold value.