Method and apparatus for phased transition of legacy systems to a next generation backup infrastructure
One example method includes [searching a legacy data backup system and identifying, in the legacy data backup system, a legacy backup asset, identifying a type of the legacy backup asset, creating a wrapper service instance that corresponds to the type of the legacy backup asset, detaching the legacy backup asset from the legacy data backup system, receiving, by the legacy backup asset, backup calls and restore calls from a new data backup system that is different from the legacy data backup system, and servicing, by the legacy backup asset the backup calls and restore calls based on a state of the legacy backup asset.
1 . A method, comprising:
searching a legacy data backup system and identifying, in the legacy data backup system, a legacy backup asset, wherein the legacy backup asset comprises a hardware element, which includes one or more storages, and a software element of the legacy data backup system, and the legacy backup asset is configured to perform part, or all, of a data backup process and/or a data restore process;
identifying a type of the legacy backup asset;
creating a wrapper service instance that is specific to the legacy data backup system, wherein the wrapper service instance corresponds to the type of the legacy backup asset;
detaching the legacy backup asset from the legacy data backup system;
migrating metadata of the detached legacy backup asset to the wrapper service instance;
attaching the detached legacy backup asset, which includes the hardware element and the software element, to a wrapper service instance of a new data backup system so that the new data backup system controls backup and restore operations via the attached legacy backup asset through the wrapper service instance;
receiving backup calls and restore calls from the new data backup system that is different from the legacy data backup system;
determining a state of the attached legacy backup asset, wherein the state specifies whether the backup calls and/or the restore calls are serviced by the legacy backup system; and
servicing, by the attached legacy backup asset through the wrapper service instance and the new data backup system, the backup calls and the restore calls based on the state of the detached attached legacy backup asset,
wherein the state is one of a first state that the attached legacy backup asset is not ready to be transitioned from operating in the legacy backup system to operating in the new data backup system, a second state that a transition from the attached legacy backup asset to the new data backup system is being performed, or a third state that the transition from the attached legacy backup asset to the new data backup system has been complete, and
wherein, when the legacy backup asset is in the second state, the restore calls are serviced using the legacy backup system, and the backup calls are serviced by the new backup system.
2 . The method as recited in claim 1 , wherein the service wrapper instance is spawned by a service handler using a service wrapper template.
3 . The method as recited in claim 1 , further comprising migrating legacy backup asset metadata from the legacy data backup system to the new data backup system.
4 . The method as recited in claim 1 , wherein when the legacy backup asset is in the first state, both the backup calls and the restore calls are serviced by the legacy backup system and according to requirements imposed by the new backup system.
5 . The method as recited in claim 4 , wherein the legacy backup asset remains indefinitely in the first state when the legacy backup asset lacks support in the new backup system.
6 . The method as recited in claim 1 , wherein when the legacy backup asset is in the third state, both the backup calls and the restore calls are serviced by the new backup system.
7 . The method as recited in claim 1 , wherein the wrapper service instance is implemented as a container.
8 . The method as recited in claim 1 , wherein the wrapper service instance comprises an abstraction that facilitates communication between the new backup system and the legacy backup system.
9 . The method as recited in claim 1 , wherein an asset service contract of the wrapper service instance defines one or more operations to be performed by the legacy backup asset, and the asset service contract is accessible by the new backup system.
10 . A non-transitory computer readable storage medium having stored therein instructions that are executable by one or more hardware processors to perform operations comprising:
searching a legacy data backup system and identifying, in the legacy data backup system, a legacy backup asset, wherein the legacy backup asset comprises a hardware element, which includes one or more storages, and a software element of the legacy data backup system, and the legacy backup asset is configured to perform part, or all, of a data backup process and/or a data restore process;
identifying a type of the legacy backup asset;
creating a wrapper service instance that is specific to the legacy data backup system, wherein the wrapper service instance corresponds to the type of the legacy backup asset;
detaching the legacy backup asset from the legacy data backup system;
migrating metadata of the detached legacy backup asset to the wrapper service instance;
attaching the detached legacy backup asset, which includes the hardware element and the software element, to a wrapper service instance of a new data backup system so that the new data backup system controls backup and restore operations on the attached legacy backup asset through the wrapper service instance;
receiving backup calls and restore calls from the new data backup system that is different from the legacy data backup system;
determining a state of the attached legacy backup asset, wherein the state specifies whether the backup calls and/or the restore calls are serviced by the legacy backup system; and
servicing, by the attached legacy backup asset through the wrapper service instance and the new data backup system, the backup calls and the restore calls based on the state of the attached legacy backup asset,
wherein the state is one of a first state that the attached legacy backup asset is not ready to be transitioned from operating in the legacy backup system to operating in the new data backup system, a second state that a transition from the attached legacy backup asset to the new data backup system is being performed, or a third state that the transition from the attached legacy backup asset to the new data backup system has been complete, and
wherein, when the legacy backup asset is in the second state, the restore calls are serviced using the legacy backup system, and the backup calls are serviced by the new backup system.
11 . The non-transitory computer readable storage medium as recited in claim 10 , wherein the service wrapper instance is spawned by a service handler using a service wrapper template.
12 . The non-transitory computer readable storage medium as recited in claim 10 , further comprising migrating legacy backup asset metadata from the legacy data backup system to the new data backup system.
13 . The non-transitory computer readable storage medium as recited in claim 10 , wherein when the legacy backup asset is in the first state, both the backup calls and the restore calls are serviced by the legacy backup system and according to requirements imposed by the new backup system.
14 . The non-transitory computer readable storage medium as recited in claim 13 , wherein the legacy backup asset remains indefinitely in the first state when the legacy backup asset lacks support in the new backup system.
15 . The non-transitory computer readable storage medium as recited in claim 10 , wherein when the legacy backup asset is in the third state, both the backup calls and the restore calls are serviced by the new backup system.
16 . The non-transitory computer readable storage medium as recited in claim 10 , wherein the wrapper service instance is implemented as a container.
17 . The non-transitory computer readable storage medium as recited in claim 10 , wherein the wrapper service instance comprises an abstraction that facilitates communication between the new backup system and the legacy backup system.
18 . The non-transitory computer readable storage medium as recited in claim 10 , wherein an asset service contract of the wrapper service instance defines one or more operations to be performed by the legacy backup asset, and the asset service contract is accessible by the new backup system.