Low cost, heterogeneous method of transforming replicated data for consumption in the cloud
Disclosed are methods and the like that provide for transforming replicated data for consumption in the cloud, for example. Such methods can include attaching a target gateway node at a secondary site to a storage device at the secondary site, searching for an identifier stored in the storage device, and storing replicated data in the replication volume. The identifier is associated with an offset stored in the storage device, and the offset identifies a starting location of a replication volume in the storage device. The replicated data is received by the target gateway node from a source gateway node at a primary site. A starting location is received with the replicated data. The target gateway node stores the replicated data at a first location in the storage volume, and the first location is determined based, at least in part, on the starting location and the first storage location.
1. A computer-implemented method comprising:
attaching a target gateway node at a secondary site to a storage device at the secondary site;
searching for an identifier stored in the storage device, wherein
the identifier is associated with an offset stored in the storage device,
the offset identifies a starting location of a replication storage volume in the storage device,
the replication storage volume is a contiguous storage volume created by a recovery application node detached from the storage device prior to the attaching of the target gateway node; and
storing replicated data in the replication storage volume, wherein
the replicated data is received by the target gateway node from a source gateway node at a primary site,
a first storage location is received with the replicated data,
the target gateway node stores the replicated data at a first location in the storage device, and
the first location is determined based, at least in part, on the starting location and the first storage location.
2. The method of claim 1 , further comprising:
creating the replication storage volume as a contiguous storage volume, wherein
the creating comprises
writing information to the storage device, and
the information comprises information regarding the starting location.
3. The method of claim 2 , wherein
the information further comprises the identifier.
4. The method of claim 3 , further comprising:
prior to creation of the replication storage volume,
provisioning the recovery application node, and
receiving the information at the target gateway node, wherein
the information is received from a source gateway node,
the information comprises
first data, and
the first storage location, and
the first storage location corresponds to a location of the first data in a first logical storage unit of a remote computing system.
5. The method of claim 2 , wherein
the target gateway node is configured to
receive the information from a source gateway node,
the information comprises
first data, and
the first storage location, and
the first storage location corresponds to a location of the first data in a first logical storage unit of a remote computing system communicatively coupled to the source gateway node.
6. The method of claim 5 , wherein
the storage device is a block storage device,
the first storage location comprises a first logical block number, and
the first location is determined based on the first logical block number and a first offset.
7. The method of claim 6 , further comprising:
receiving second information at the target gateway node, wherein
the second information comprises
second data, and
a logical block number corresponding to the first location; and
storing the second data in the block storage device, wherein
the storing the second data comprises overwriting the first data.
8. The method of claim 2 , further comprising:
prior to the recovery application node being detached from the storage device,
provisioning the recovery application node, wherein
the recovery application node is communicatively coupled to the target gateway node.
9. The method of claim 8 , further comprising:
subsequent to the recovery application node being detached from the storage device,
shutting down the recovery application node.
10. The method of claim 1 , further comprising:
receiving the replicated data at the target gateway node, wherein
the replicated data is received from a source gateway node.
11. The method of claim 10 , wherein the replicated data is received by the source gateway node from a computing device executing an application, and further comprising:
in response to detection of a failure of the application, performing a failover of the application, wherein
the performing the failover comprises
attaching the replication storage volume to another recovery application node, and
executing an instance of the application on the another recovery application node.
12. The method of claim 11 , wherein the performing the failover further comprises:
prior to attaching the replication storage volume to the another recovery application node,
detaching the replication storage volume from the target gateway node.
13. The method of claim 11 , wherein the replication storage volume is comprised in a volume group, and the performing the failover further comprises:
importing the volume group to the another recovery application node.
14. The method of claim 10 , further comprising:
capturing a write operation, wherein
the write operation writes data to a primary volume of a remote computing device, and
the remote computing device is communicatively coupled to the source gateway node;
determining a logical block number to which the write operation writes the data; and
transmitting the data and the logical block number to the target gateway node, wherein
the source gateway node performs the transmitting, and
the data is received by the target gateway node as the replicated data.
15. A non-transitory computer-readable storage medium, comprising program instructions, which, when executed by one or more processors of a computing system, perform a method comprising:
attaching a target gateway node at a secondary site to a storage device at the secondary site;
searching for an identifier stored in the storage device, wherein
the identifier is associated with an offset stored in the storage device,
the offset identifies a starting location of a replication storage volume in the storage device,
the replication storage volume is a contiguous storage volume created by a recovery application node detached from the storage device prior to the attaching of the target gateway node; and
storing replicated data in the replication storage volume, wherein
the replicated data is received by the target gateway node from a source gateway node at a primary site,
a first storage location is received with the replicated data,
the target gateway node stores the replicated data at a first location in the storage device, and
the first location is determined based, at least in part, on the starting location and the first storage location.
16. The non-transitory computer-readable storage medium of claim 15 , wherein the method further comprises:
creating the replication storage volume as a contiguous storage volume, wherein
the creating comprises
writing information to the storage device, and
the information comprises
the starting location, and
the identifier.
17. The non-transitory computer-readable storage medium of claim 15 , wherein
the target gateway node is configured to
receive information from a source gateway node,
the information comprises
first data, and
the first storage location, and
the first storage location corresponds to a location of the first data in a first logical storage unit of a remote computing system communicatively coupled to the source gateway node.
18. The non-transitory computer-readable storage medium of claim 17 , wherein
the storage device is a block storage device,
the first storage location comprises a first logical block number, and
the first location is determined based on the first logical block number and a first offset.
19. The non-transitory computer-readable storage medium of claim 15 , wherein the method further comprises:
receiving the replicated data at the target gateway node, wherein
the replicated data is received from a source gateway node, and
the replicated data is received by the source gateway node from a computing device executing an application; and
in response to detection of a failure of the application, performing a failover of the application, wherein
the performing the failover comprises
attaching the replication storage volume to another recovery application node, and
executing an instance of the application on the another recovery application node.
20. A computing system comprising:
one or more processors; and
a non-transitory computer-readable storage medium coupled to the one or more processors, comprising program instructions, which, when executed by the one or more processors, perform a method comprising
attaching a target gateway node at a secondary site to a storage device at the secondary site,
searching for an identifier stored in the storage device, wherein
the identifier is associated with an offset stored in the storage device,
the offset identifies a starting location of a replication storage volume in the storage device,
the replication storage volume is a contiguous storage volume created by a recovery application node detached from the storage device prior to the attaching of the target gateway node, and
storing replicated data in the replication storage volume, wherein
the replicated data is received by the target gateway node from a source gateway node at a primary site,
a first storage location is received with the replicated data,
the target gateway node stores the replicated data at a first location in the storage device, and
the first location is determined based, at least in part, on the starting location and the first storage location.