Computer system and method executed by computer system
One object of the disclosure is to reduce a capacity of cached data, reduce a transfer volume, or reduce a management cost. One aspect of the disclosure is a computer system including a storage control unit and a storage apparatus. The storage control unit receives a notification of information on an operation mode determined by an operation mode determination unit based on processing executed by a processing execution unit. When an access request is received via a virtual volume from the processing execution unit in a case where target data is not stored in a cache volume, the storage control unit executes an access to a real volume. The storage control unit controls the cache volume based on the information on the operation mode.
1 . A computer system comprising:
a storage control unit; and
a storage apparatus, wherein
the storage control unit is configured to
provide a virtual volume to a processing execution unit configured to execute an application,
manage data input to and output from a real volume via the virtual volume,
implement a cache volume based on a storage area of the storage apparatus,
receive a notification of information on an operation mode determined by an operation mode determination unit based on processing executed by the processing execution unit,
when an access request is received via the virtual volume from the processing execution unit, in a case where target data of the access request is not stored in the cache volume, execute an access to the real volume for the target data, and
control the cache volume based on the notified information on the operation mode,
wherein
the operation mode determination unit determines the operation mode for each phase of the processing in a workflow indicating the processing.
2 . A computer system comprising:
a storage control unit; and
a storage apparatus, wherein
the storage control unit is configured to
provide a virtual volume to a processing execution unit configured to execute an application,
manage data input to and output from a real volume via the virtual volume,
implement a cache volume based on a storage area of the storage apparatus,
receive a notification of information on an operation mode determined by an operation mode determination unit based on processing executed by the processing execution unit,
when an access request is received via the virtual volume from the processing execution unit, in a case where target data of the access request is not stored in the cache volume, execute an access to the real volume for the target data, and
control the cache volume based on the notified information on the operation mode,
wherein
the operation mode determination unit determines the operation mode based on an operation mode explicitly indicated by workflow information describing a workflow indicating the processing, an attribute of a service executed by the processing execution unit, or an attribute of the virtual volume accessed by the processing execution unit.
3 . A computer system comprising:
a storage control unit; and
a storage apparatus, wherein
the storage control unit is configured to
provide a virtual volume to a processing execution unit configured to execute an application,
manage data input to and output from a real volume via the virtual volume,
implement a cache volume based on a storage area of the storage apparatus,
receive a notification of information on an operation mode determined by an operation mode determination unit based on processing executed by the processing execution unit,
when an access request is received via the virtual volume from the processing execution unit, in a case where target data of the access request is not stored in the cache volume, execute an access to the real volume for the target data, and
control the cache volume based on the notified information on the operation mode,
wherein
when the access request is received from the processing execution unit, the storage control unit controls whether to retain data read from the real volume in the cache volume based on the notified information on the operation mode, and
wherein
the storage control unit
deletes data stored in the cache volume in response to the notification of the information on the predetermined operation mode, and
stores, in the real volume, dirty data not stored in the real volume when deleting the data.
4 . A computer system comprising:
a storage control unit; and
a storage apparatus, wherein
the storage control unit is configured to
provide a virtual volume to a processing execution unit configured to execute an application,
manage data input to and output from a real volume via the virtual volume,
implement a cache volume based on a storage area of the storage apparatus,
receive a notification of information on an operation mode determined by an operation mode determination unit based on processing executed by the processing execution unit,
when an access request is received via the virtual volume from the processing execution unit, in a case where target data of the access request is not stored in the cache volume, execute an access to the real volume for the target data, and
control the cache volume based on the notified information on the operation mode,
wherein
when the access request is received from the processing execution unit, the storage control unit controls whether to retain data read from the real volume in the cache volume based on the notified information on the operation mode, and
wherein
the storage control unit
does not retain, in the cache volume, data read from the real volume related to a read access or a write access in an operation mode when the processing execution unit executes a catalog service,
does not retain, in the cache volume, data read from the real volume related to a read access and retains, in the cache volume, data read from the real volume related to a write access, in an operation mode when the processing execution unit executes an ETL service,
retains, in the cache volume, data read from the real volume related to a read access or a write access in an operation mode when the processing execution unit executes an analysis service, and
does not retain, in the cache volume, data stored in the cache volume in an operation mode when the processing execution unit executes a model output service.
5 . A computer system comprising:
a storage control unit; and
a storage apparatus, wherein
the storage control unit is configured to
provide a virtual volume to a processing execution unit configured to execute an application,
manage data input to and output from a real volume via the virtual volume,
implement a cache volume based on a storage area of the storage apparatus,
receive a notification of information on an operation mode determined by an operation mode determination unit based on processing executed by the processing execution unit,
when an access request is received via the virtual volume from the processing execution unit, in a case where target data of the access request is not stored in the cache volume, execute an access to the real volume for the target data, and
control the cache volume based on the notified information on the operation mode,
wherein
when the access request is received from the processing execution unit, the storage control unit controls whether to retain data read from the real volume in the cache volume based on the notified information on the operation mode, and
wherein
the storage control unit
does not retain, in the cache volume, data read from the real volume related to a read access or a write access in an operation mode when the processing execution unit accesses a catalog volume,
does not retain, in the cache volume, data read from the real volume related to a read access and retains, in the cache volume, data read from the real volume related to a write access, in an operation mode when a volume accessed by the processing execution unit is in a virtual lake,
retains, in the cache volume, data read from the real volume related to a read access or a write access in an operation mode when a volume accessed by the processing execution unit is in a virtual mart,
retains, in the cache volume, data read from the real volume related to a read access or a write access in an operation mode when the processing execution unit accesses a work volume, and
does not retain, in the cache volume, data stored in the cache volume in an operation mode when a volume to which the processing execution unit is related is a model volume.
6 . A computer system comprising:
a storage control unit; and
a storage apparatus, wherein
the storage control unit is configured to
provide a virtual volume to a processing execution unit configured to execute an application,
manage data input to and output from a real volume via the virtual volume,
implement a cache volume based on a storage area of the storage apparatus,
receive a notification of information on an operation mode determined by an operation mode determination unit based on processing executed by the processing execution unit,
when an access request is received via the virtual volume from the processing execution unit, in a case where target data of the access request is not stored in the cache volume, execute an access to the real volume for the target data, and
control the cache volume based on the notified information on the operation mode,
wherein
the processing execution unit includes a workflow management unit and a service execution unit,
the workflow management unit manages a workflow based on workflow information in which a workflow indicating the processing is described, and manages the service execution unit, and
the service execution unit executes a service in the processing, and
wherein
the workflow information includes, for each phase of the processing, information for specifying a service corresponding to the phase or information for specifying data input and output in the phase.