摘要:
When an active data copy process relative to a logical storage device is performed without involving a computer, an access permission/rejection of the computer to the logical storage device is checked by referring to a correspondence between WWN of the computer and a logical storage device identifier LUN to thereby determine whether an access to a copy source logical storage device and a copy destination logical storage device is permitted or not. It is therefore possible to prevent an outflow of illegal data from a storage subsystem to be caused by an active copy instruction command.
摘要:
When an active data copy process relative to a logical storage device is performed without involving a computer, an access permission/rejection of the computer to the logical storage device is checked by referring to a correspondence between WWN of the computer and a logical storage device identifier LUN to thereby determine whether an access to a copy source logical storage device and a copy destination logical storage device is permitted or not. It is therefore possible to prevent an outflow of illegal data from a storage subsystem to be caused by an active copy instruction command.
摘要:
When an active data copy process relative to a logical storage device is performed without involving a computer, an access permission/rejection of the computer to the logical storage device is checked by referring to a correspondence between WWN of the computer and a logical storage device identifier LUN to thereby determine whether an access to a copy source logical storage device and a copy destination logical storage device is permitted or not. It is therefore possible to prevent an outflow of illegal data from a storage subsystem to be caused by an active copy instruction command.
摘要:
The present invention provides a method, a system and code for backing up information on a storage system, for example, a disk system, connected to a storage area network. The host or server system off loads the task of backing up its data to the storage system that stores the data. In an exemplary embodiment a server sends an E-Copy command to a disk system. Next, the disk system finds an available back-device, for example a tape or DLT library, and then backups the information indicated in the E-Copy command to the back-up device. A user interface is provided so that one or more path groups, comprising at least a target port and an initiator port, on a disk system may be designated.
摘要:
The present invention provides a method, a system and code for backing up information on a storage system, for example, a disk system, connected to a storage area network. The host or server system off loads the task of backing up its data to the storage system that stores the data. In an exemplary embodiment a server sends an E-copy command to a disk system. Next, the disk system finds an available back-up device, for examples a tape or DLT library, and then backs-up the information indicated in the E-copy command to the back-up device. A user interface is provided so that one or more path groups, comprising at least a target port and an initiator port, on a disk system may be designated.
摘要:
The present invention provides a method, a system and code for backing up information on a storage system, for example, a disk system, connected to a storage area network. The host or server system off loads the task of backing up its data to the storage system that stores the data. In an exemplary embodiment a server sends an E-copy command to a disk system. Next, the disk system finds an available back-up device, for example, a tape or DLT library, and then backs-up the information indicated in the E-copy command to the back-up device. A user interface is provided so that one or more path groups, comprising at least a target port and an initiator port, on a disk system may be designated.
摘要:
A storage control system in which a first storage controller is connected to a storage device in a second storage controller and the first storage controller is configured to be able to read and write data from/to the storage device in the second storage controller in response to a request from a host device connected to the first storage apparatus, the first storage controller including: a controller for controlling data transmission and reception between the host device and the storage device in the second storage controller; and a cache memory for temporarily storing the data, wherein the controller sets a threshold value for storage capacity in the cache memory assigned to the storage device according to the properties of the storage device.
摘要:
A virtualization system, including: at least one first port coupled to at least one host system; at least one second port coupled to a plurality of storage systems; wherein the virtualization system is capable to control to perform processes of splitting a relationship between the first virtual volume and the second virtual volume; storing first differential information identifying data of a first write request; write data of first write request to a storage area of the disk drives related to the first logical volume; storing second differential information identifying data of a second write request, the data of the second request being written after the splitting step, receiving a differential copying request; to copy differential data from the first virtual volume to the second virtual volume, or to copy differential data from the second virtual volume to the first virtual volume.
摘要:
A storage apparatus includes: a management unit for managing mapping, to a logical volume, of a second dynamically allocated storage area volume in an external storage apparatus, and also managing a management unit for a storage area in the second dynamically allocated storage area volume for storing data sent from the host computer; a volume creation unit for creating, when creating the first dynamically allocated storage area volume in accordance with an externally given command the first dynamically allocated storage area volume by setting the management unit for the first dynamically allocated storage area volume based on a management unit for a storage area in the second dynamically allocated storage area volume; and a write data writing unit for writing, in accordance with a command from the host computer, the write data sent from the host computer to a storage area in a relevant second dynamically allocated storage area volume.
摘要:
Provided is a storage system having one or more logical devices mapped to a virtual device provided in a mapping destination storage system, and a storage controller for controlling the reading and writing of data from and to the logical devices. Upon receiving a reserve command from the mapping destination storage system, the storage controller restricts the access from an initiator other than the mapping destination storage system to a logical device to which access restriction is designated with the reserve command.