Redundancy determination system and redundancy determination method

1. A redundancy determination system extending a system on an on-premise data center to a public cloud by using a computer including a processor and a memory,

wherein the processor performs first processing of deploying the system in a plurality of sites included in the public cloud when a recovery time objective of the system is less than a build-out time of the system that is calculated on the basis of an operational status of the system, and

second processing of deploying the system in one site of the sites included in the public cloud when the recovery time objective of the system is not less than the build-out time.

2. The redundancy determination system according to claim 1 ,

wherein the public cloud includes a software-defined storage (SDS) and a data base (DB), and

the processor calculates the build-out time of the system including each of items of deployment of the SDS, data copy to the public cloud from the on-premise data center, activation and suspension of the SDS, deployment of the DB, and activation and suspension of the DB, and determines whether to perform the first processing or the second processing.

3. The redundancy determination system according to claim 2 ,

wherein the processor generates preparation patterns in which each of the items are combined, on the basis of the operational status of the system at a time point when performing the first processing or the second processing, and calculates the build-out time of the system for each of the generated preparation patterns.

4. The redundancy determination system according to claim 3 ,

wherein the processor determines the operational status of the system, on the basis of the capacity of the DB, and the communication traffic between the on-premise data center and the public cloud.

5. The redundancy determination system according to claim 3 ,

wherein the processor rearranges the build-out time of the system that is calculated for each of the preparation patterns in order of a cost to be presented to a user.

6. A redundancy determination method performed in a redundancy determination system extending a system on an on-premise data center to a public cloud by using a computer including a processor and a memory, the method comprising:

first processing of deploying the system in a plurality of sites included in the public cloud when a recovery time objective of the system is less than a build-out time of the system that is calculated on the basis of an operational status of the system; and

second processing of deploying the system in one site of the sites included in the public cloud when the recovery time objective of the system is not less than the build-out time.

7. The redundancy determination method according to claim 6 ,

wherein the build-out time of the system including each of items of deployment of an SDS, data copy to the public cloud from the on-premise data center, activation and suspension of the SDS included in the public cloud, deployment of a DB included in the public cloud, and activation and suspension of the DB is calculated, and whether to perform the first processing or the second processing is determined.

8. The redundancy determination method according to claim 7 ,

wherein preparation patterns in which each of the items are combined are generated on the basis of the operational status of the system at a time point when performing the first processing or the second processing, and the build-out time of the system is calculated for each of the generated preparation patterns.

9. The redundancy determination method according to claim 8 ,

wherein the operational status of the system is determined on the basis of capacity of the DB, and communication traffic between the on-premise data center and the public cloud.

10. The redundancy determination method according to claim 8 ,

wherein the build-out time of the system that is calculated for each of the preparation patterns is rearranged in order of a cost to be presented to a user.