Patent ID: 11868367
Assignee: HITACHI, LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. An information processing method executed by an information processing apparatus in a hybrid cloud having a cloud provided with a host or hosts where a system or systems are in operation, and a storage apparatus which is provided at other than the cloud and from and to which the host reads and writes data, the information processing apparatus for executing remote copy processing of data from a main environment hybrid cloud to the hybrid cloud,
wherein the main environment hybrid cloud has a cloud provided with a main environment host where the system or systems are in operation, and a main environment storage apparatus which is provided at other than the cloud and from and to which the main environment host reads and writes data,
the information processing method comprising the steps of:
an access frequency information acquisition step of acquiring access frequency information regarding an access frequency from the host to each piece of data stored in the storage apparatus;
a copy data judgment step of judging object data of the remote copy processing on the basis of a priority of the system and the access frequency information;
a data copy execution step of issuing an instruction to the storage apparatus to start executing the remote copy processing of the object data;
a host information acquisition step of acquiring host information of the main environment host;
a configuration change instruction step of issuing an instruction to activate the host and the storage apparatus and also issuing an instruction to change a quantity of hosts to perform scale-in/scale-out of the hosts and change a resource allocation to the storage apparatus;
a copy processing information acquisition step of acquiring history information about copy time of the remote copy processing: and
an estimated copy wait time calculation step of: calculating an estimated copy wait time which is an estimated value of a copy wait time from the instruction to execute the remote copy processing of the object data to its start on the basis of the history information; judging whether the estimated copy wait time exceeds an upper limit of a specified threshold value or not; and, if the estimated copy wait time exceeds the upper limit of the specified threshold value, issuing an instruction to the configuration change instruction step to change the quantity of hosts or change the resource allocation so that the estimated copy wait time will become equal to or less than the upper limit of the specified threshold value,
wherein if the host information indicates that a failure has occurred in the main environment cloud, the information processing method further comprising the steps of:
in the configuration change instruction step, the information processing apparatus issuing an instruction to activate the host and the storage apparatus in order to cause the system with highest priority to operate in the cloud as a target system to be resumed; and
if it is judged by the estimated copy wait time calculation step that the estimated copy wait time is equal to or less than the upper limit of the specified threshold value, in the data copy execution step, the information processing apparatus issuing an instruction to the storage apparatus to start the remote copy processing of the object data.