Low cost, heterogeneous method of transforming replicated data for consumption in the cloud
Presented herein is functionality for using a recovery computing system to perform a failover where the recovery computing system is communicatively coupled to a homogeneous and/or heterogeneous primary computing system. In one embodiment, this functionality allows the recovery computing system to disconnect a first recovery application node from a contiguous storage volume after the contiguous storage volume had been created by the first recovery application node, and to then use a recovery gateway node to store replicated data on the continguous storage volume, where the recovery gateway node and the contiguous storage volume are both coupled to the recovery computing system. In response to detecting a failure on the primary computing system, performing a failover to the recovery computing system, where performing the failover comprises attaching the contiguous storage volume to a second recovery application node and bringing the second recovery application node online.
1. A method comprising:
disconnecting a first recovery application node from a contiguous storage volume, wherein
the contiguous storage volume is created by the first recovery application node,
the first recovery application node is communicatively coupled to a recovery computing system, and
the recovery computing system comprises a recovery gateway node;
subsequent to the disconnecting of the first recovery application node from the contiguous storage volume, replicating data received from a primary computing system, wherein
the replicating is performed, at least in part, by the recovery gateway node, and
the replicating comprises storing the data in the contiguous storage volume;
detecting a failure of an application running on the primary computing system; and
in response to detecting the failure of the application, performing a failover of the application to the recovery computing system, wherein
performing the failover comprises
attaching the contiguous storage volume to a second recovery application node,
executing an instance of the application on the second recovery application node, and
bringing the second recovery application node online.
2. The method of claim 1 , wherein
the first recovery application node and the second recovery application node are the same node.
3. The method of claim 1 , further comprising:
prior to the disconnecting, creating the contiguous storage volume on a storage device, wherein
the creating the contiguous storage volume comprises
writing information regarding a starting location associated with the contiguous storage volume.
4. The method of claim 1 , wherein
the disconnecting comprises shutting down the first recovery application node, and
the shutting down is performed prior to the replicating of the data.
5. The method of claim 1 , further comprising:
prior to creating the contiguous storage volume, provisioning a storage device, wherein
the first recovery application node is used to provision the storage device, and
the storage device is communicatively coupled to the second recovery application node.
6. The method of claim 1 , wherein performing the failover further comprises:
prior to attaching the contiguous storage volume to the second recovery application node, detaching the contiguous storage volume from the recovery gateway node.
7. The method of claim 1 , wherein performing the failover further comprises:
prior to bringing the second recovery application node online, importing a volume group to the second recovery application node, wherein
the contiguous storage volume comprises the volume group.
8. A computer system comprising:
one or more processors; and
a memory coupled to at least one of the one or more processors and configured to store instructions executable by the one or more processors, the instructions configured to perform a method comprising
disconnecting a first recovery application node from a contiguous storage volume, wherein
the contiguous storage volume is created by the first recovery application node,
the first recovery application node is communicatively coupled to a recovery computing system, and
the recovery computing system comprises a recovery gateway node,
subsequent to the disconnecting of the first recovery application node from the contiguous storage volume, replicating data received from a primary computing system, wherein
the replicating is performed, at least in part, by the recovery gateway node, and
the replicating comprises storing the data in the contiguous storage volume,
detecting a failure of an application running on the primary computing system, and
in response to detecting the failure of the application, performing a failover of the application to the recovery computing system, wherein
performing the failover comprises
attaching the contiguous storage volume to a second recovery application node,
executing an instance of the application on the second recovery application node, and
bringing the second recovery application node online.
9. The computer system of claim 8 , wherein
the first recovery application node and the second recovery application node are the same node.
10. The computer system of claim 8 , wherein the method further comprises:
prior to the disconnecting, creating the contiguous storage volume on a storage device, wherein
the creating the contiguous storage volume comprises writing information regarding a starting location associated with the contiguous storage volume.
11. The computer system of claim 8 , wherein
the disconnecting comprises shutting down the first recovery application node, and
the shutting down is performed prior to the replicating of the data.
12. The computer system of claim 8 , wherein the method further comprises:
prior to creating the contiguous storage volume, provisioning a storage device, wherein
the first recovery application node is used to provision the storage device, and
the storage device is communicatively coupled to the second recovery application node.
13. The computer system of claim 8 , wherein performing the failover further comprises:
prior to attaching the contiguous storage volume to the second recovery application node, detaching the contiguous storage volume from the recovery gateway node.
14. The computer system of claim 8 , wherein performing the failover further comprises:
prior to bringing the second recovery application node online, importing a volume group to the second recovery application node, wherein
the contiguous storage volume comprises the volume group.
15. A non-transitory computer-readable storage medium configured to store program instructions that, when executed on a processor, are configured to cause the processor to perform a method comprising:
disconnecting a first recovery application node from a contiguous storage volume, wherein
the contiguous storage volume is created by the first recovery application node,
the first recovery application node is communicatively coupled to a recovery computing system, and
the recovery computing system comprises a recovery gateway node;
subsequent to the disconnecting of the first recovery application node from the contiguous storage volume, replicating data received from a primary computing system, wherein
the replicating is performed, at least in part, by the recovery gateway node, and
the replicating comprises storing the data in the contiguous storage volume;
detecting a failure of an application running on the primary computing system; and
in response to detecting the failure of the application, performing a failover of the application to the recovery computing system, wherein
performing the failover comprises
attaching the contiguous storage volume to a second recovery application node,
executing an instance of the application on the second recovery application node, and
bringing the second recovery application node online.
16. The non-transitory computer-readable storage medium of claim 15 , wherein
the first recovery application node and the second recovery application node are the same node.
17. The non-transitory computer-readable storage medium of claim 15 , wherein the method further comprises:
prior to the disconnecting
provisioning a storage device, wherein
the first recovery application node is used to provision the storage device, and
the storage device is communicatively coupled to the second recovery application node; and
creating the contiguous storage volume on a storage device, wherein
the creating the contiguous storage volume comprises writing information regarding a starting location associated with the contiguous storage volume.
18. The non-transitory computer-readable storage medium of claim 15 , wherein
the disconnecting comprises shutting down the first recovery application node, and
the shutting down is performed prior to the replicating of the data.
19. The non-transitory computer-readable storage medium of claim 15 , wherein performing the failover further comprises:
prior to attaching the contiguous storage volume to the second recovery application node, detaching the contiguous storage volume from the recovery gateway node.
20. The non-transitory computer-readable storage medium of claim 15 , wherein performing the failover further comprises:
prior to bringing the second recovery application node online, importing a volume group to the second recovery application node, wherein
the contiguous storage volume comprises the volume group.