摘要:
In a storage system having a plurality of virtualization apparatuses that allocate a storage area which a storage device has, form a plurality of virtual volumes, and process input-output from a host processor to one of the virtual volumes, a request for completing all the input-output being processed that is received from the host processor and temporarily holding the input-output processing received subsequently is issued to the plurality of virtualization apparatuses, when a completion report of the processing of the input-output in response to the request is received from the plurality of virtualization apparatuses and the completion report is received from all the virtualization apparatuses to which the request was issued, an instruction of an allocation change of the storage area of the storage device is sent to all the virtualization apparatuses, and when the completion report of the allocation change is received from all the virtualization apparatuses, the storage area of the storage device is allocated to the virtual volume by sending an instruction for releasing a state of the input-output held temporarily to all the virtualization apparatuses.
摘要:
In a storage system having a plurality of virtualization apparatuses that allocate a storage area which a storage device has, form a plurality of virtual volumes, and process input-output from a host processor to one of the virtual volumes, a request for completing all the input-output being processed that is received from the host processor and temporarily holding the input-output processing received subsequently is issued to the plurality of virtualization apparatuses, when a completion report of the processing of the input-output in response to the request is received from the plurality of virtualization apparatuses and the completion report is received from all the virtualization apparatuses to which the request was issued, an instruction of an allocation change of the storage area of the storage device is sent to all the virtualization apparatuses, and when the completion report of the allocation change is received from all the virtualization apparatuses, the storage area of the storage device is allocated to the virtual volume by sending an instruction for releasing a state of the input-output held temporarily to all the virtualization apparatuses.
摘要:
In a storage system having a plurality of virtualization apparatuses that allocate a storage area which a storage device has, form a plurality of virtual volumes, and process input-output from a host processor to one of the virtual volumes, a request for completing all the input-output being processed that is received from the host processor and temporarily holding the input-output processing received subsequently is issued to the plurality of virtualization apparatuses, when a completion report of the processing of the input-output in response to the request is received from the plurality of virtualization apparatuses and the completion report is received from all the virtualization apparatuses to which the request was issued, an instruction of an allocation change of the storage area of the storage device is sent to all the virtualization apparatuses, and when the completion report of the allocation change is received from all the virtualization apparatuses, the storage area of the storage device is allocated to the virtual volume by sending an instruction for releasing a state of the input-output held temporarily to all the virtualization apparatuses.
摘要:
Disclosed is a storage system having storage devices from which storage areas are specified. Virtualization apparatuses allocate the storage areas as virtual volumes and processes I/O requests with respect to the virtual volumes. A controller is operable to change the allocation of storage areas to the virtual volumes. The controller is configured to send a request to some of the virtualization apparatuses to temporarily suspend processing of their I/O. When a virtualization apparatus receives such a request, it completes its pending I/O and temporarily suspends subsequent I/O requests, and sends a completion report to the controller. The controller then changes the allocation of storage areas to the virtual volumes.
摘要:
In a storage system having a plurality of virtualization apparatuses that allocate a storage area which a storage device has, form a plurality of virtual volumes, and process input-output from a host processor to one of the virtual volumes, a request for completing all the input-output being processed that is received from the host processor and temporarily holding the input-output processing received subsequently is issued to the plurality of virtualization apparatuses, when a completion report of the processing of the input-output in response to the request is received from the plurality of virtualization apparatuses and the completion report is received from all the virtualization apparatuses to which the request was issued, an instruction of an allocation change of the storage area of the storage device is sent to all the virtualization apparatuses, and when the completion report of the allocation change is received from all the virtualization apparatuses, the storage area of the storage device is allocated to the virtual volume by sending an instruction for releasing a state of the input-output held temporarily to all the virtualization apparatuses.
摘要:
A host I/F unit has a management table for managing an MPPK which is in-charge of the control of input/output processing for a storage area of an LDEV, and if a host computer transmits an input/output request for the LDEV, the host I/F unit transfers the input/output request to the MPPK which is in-charge of the input/output processing for the LDEV based on the management table, an MP of the MPPK performs the input/output processing based on the input/output request, and the MP of the MPPK also judges whether the MPPK that is in-charge of the input/output processing for the LDEV is to be changed, and sets the management table so that an MPPK which is different from the MPPK that is in-charge is to be in-charge of the input/output processing for the LDEV.
摘要:
A host I/F unit has a management table for managing an MPPK which is in-charge of the control of input/output processing for a storage area of an LDEV, and if a host computer transmits an input/output request for the LDEV, the host I/F unit transfers the input/output request to the MPPK which is in-charge of the input/output processing for the LDEV based on the management table, an MP of the MPPK performs the input/output processing based on the input/output request, and the MP of the MPPK also judges whether the MPPK that is in-charge of the input/output processing for the LDEV is to be changed, and sets the management table so that an MPPK which is different from the MPPK that is in-charge is to be in-charge of the input/output processing for the LDEV.
摘要:
A host I/F unit has a management table for managing an MPPK which is in-charge of the control of input/output processing for a storage area of an LDEV, and if a host computer transmits an input/output request for the LDEV, the host I/F unit transfers the input/output request to the MPPK which is in-charge of the input/output processing for the LDEV based on the management table, an MP of the MPPK performs the input/output processing based on the input/output request, and the MP of the MPPK also judges whether the MPPK that is in-charge of the input/output processing for the LDEV is to be changed, and sets the management table so that an MPPK which is different from the MPPK that is in-charge is to be in-charge of the input/output processing for the LDEV.
摘要:
The relation between a NAS server and a port set with a network address given to the NAS server is uniquely decided at 1:1 so that the processing performance of a TCP/IP processor or the NAS server creates a bottleneck to lower the response.A host computer separates: an I/F portion, to which an address which sends a command is given; a NAS server portion; a cache control portion which processes a device; and an I/F portion which accesses an external storage, and accesses them through an internal network 170 so that the corresponding relation between the I/F and the NAS server and the corresponding relation between the address given to the I/F and the NAS server can be arbitrarily reconfigured according to the processing load or the like.
摘要:
The relation between a NAS server and a port set with a network address given to the NAS server is uniquely decided at 1:1 so that the processing performance of a TCP/IP processor or the NAS server creates a bottleneck to lower the response. A host computer separates: an I/F portion, to which an address which sends a command is given; a NAS server portion; a cache control portion which processes device; and an I/F portion which accesses an external storage, and accesses them through an internal network 170 so that the corresponding relation between the I/F and the NAS server and the corresponding relation between the address given to the I/F and the NAS server can be arbitrarily reconfigurated according to the processing load or the like.