Cloud service utilization
Cloud services may be utilized by implementing an I/O hook that can intercept a data access from an application, migrating data accessed by the application to a cloud server that provides a cloud service, receiving, from the I/O hook, a data access intercepted from the application, and redirecting the intercepted data access to the cloud server.
1. A method of cloud service utilization on an application-by-application basis, the method comprising, for each of a plurality of applications:
implementing a respective I/O hook configured to intercept a data access from a corresponding application of the plurality of applications;
selecting a cloud service from a plurality of cloud services based on data access statistics generated by the respective I/O hook for the corresponding application;
migrating data accessed by the corresponding application to a cloud server that provides the selected cloud service;
receiving, from the respective I/O hook, a data access intercepted from the corresponding application; and
redirecting the intercepted data access to the cloud server that provides the selected cloud service.
2. The method of claim 1 , wherein the migrating includes transmitting the data accessed by the corresponding application from a local storage to the cloud server.
3. The method of claim 1 , wherein
the selecting includes collecting information relating to the plurality of cloud services, and is further based on the information.
4. The method of claim 3 , wherein the collecting includes collecting at least part of the information from a third party server that obtains the part of the information from at least one of the cloud services among the plurality of cloud services.
5. The method of claim 3 , wherein the collecting includes collecting at least part of the information by measuring performance of at least one of the plurality of cloud services.
6. The method of claim 3 , wherein the selecting is further based on at least one of a price, a free storage size, a maximum storage size, a performance, an availability, or a security of each cloud storage service.
7. The method of claim 1 , wherein the migrating includes sending an I/O daemon to the cloud server, the I/O daemon including instructions that, when executed by the cloud server, cause the cloud server to provide data access on the cloud server.
8. The method of claim 1 , further comprising migrating each file that has not been migrated to the cloud server in response to receiving a data access to the file.
9. The method of claim 1 , further comprising:
registering at least one file that has not been migrated to the cloud server in response to receiving a data access to the at least one file, and
transferring the at least one registered file to the cloud server asynchronously.
10. The method of claim 9 , wherein the transferring includes determining a schedule to transfer the at least one registered file based on data access statistics of the application from the I/O hook.
11. The method of claim 1 , wherein the migrating includes:
determining whether a number of write-only files in a directory exceeds a threshold, and
transferring the directory to the cloud server in response to the determination that the number of write-only files in the directory exceeds the threshold.
12. The method of claim 1 , further comprising:
monitoring a frequency of data access of the application to a file which has not been migrated to the cloud server, and
moving the file from a local storage to a back-up storage in response to the frequency falling below a threshold.
13. The method of claim 12 , further comprising migrating the file from the back-up storage to the cloud server in response to receiving a data access to the file in the back-up storage.
14. The method of claim 1 , wherein selecting the cloud service from the plurality of cloud services further comprises selecting a respective cloud service for each file of a plurality of files based on data access statistics corresponding to each file.