ONE-CLICK BACKUP IN A CLOUD-BASED DISASTER RECOVERY SYSTEM

• US 20150331757A1
• Filed: 07/18/2014
• Published: 11/19/2015
• Est. Priority Date: 05/19/2014
• Status: Active Grant

• Current Assignee: Persistent Systems, Inc. (Persistent Systems Limited)
• Original Assignee: Ashish Govind Khurange, Kulangara Kuriakose George, Kuldeep Sureshrao Nagarkar, Ravender Goval, Sachin Baban Durge, Trimbak Somnathappe Bardale
• Inventors: Durge, Sachin Baban, Nagarkar, Kuldeep Sureshrao, Khurange, Ashish Govind, Goval, Ravender, Bardale, Trimbak Somnathappe, George, Kulangara Kuriakose
• Granted Patent: US 9,760,447 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 11/1451 by selection of backup contents
• CPC Class Codes: G06F 11/1453 using de-duplication of the data
• CPC Class Codes: G06F 11/1458 Management of the backup or restore process
• CPC Class Codes: G06F 16/128 Details of file system snapshots on the file-level, e.g. snapshot creation, administration, deletion use of snapshots for error detection or correction G06F11/14, G06F11/16
• CPC Class Codes: G06F 16/1748 De-duplication implemented within the file system, e.g. based on file segments de-duplication techniques in storage systems for the management of data blocks G06F3/0641
• CPC Class Codes: G06F 16/183 Provision of network file services by network file servers, e.g. by using NFS, CIFS network file access protocols H04L67/1097
• CPC Class Codes: G06F 16/27 Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
• CPC Class Codes: G06F 2009/45583 Memory management, e.g. access or allocation
• CPC Class Codes: G06F 2201/80 Database-specific techniques
• CPC Class Codes: G06F 2201/815 Virtual middleware or OS functionality using virtual machines to implement generic software techniques for error detection or fault masking G06F11/1484
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects

Abstract

In one embodiment, a computer-implemented method includes the step of accessing a set of data blocks in a local application server disk in an application server. It is determined which of the set of data blocks are used to store data. The data blocks used to store data are read to a deduplication store on the storage appliance. It is determined that a modification occurs to a data block in the local application server disk of the application server. The modification is read to the deduplication store. A remote virtual image of the application server can be generated from the deduplication store.

Claims

1. A method comprising:

accessing a set of data blocks in a local application server disk in an application server;

determining which of the set of data blocks are used to store data;

reading the data blocks used to store data to a deduplication store on the storage appliance;

determining that a modification occurs to a data block in the local application server disk of the application server;

reading the modification to the deduplication store; and

generating a remote virtual image of the application server from the deduplication store.

2. The method of claim 1 further comprising:

capturing an application server machine hardware details.

3. The method of claim 2 further comprising:

saving the application server machine hardware details as metadata.

4. The method of claim 3 further comprising:

restoring a disk image of the application server from deduplication store on the storage appliance to a target hypervisor system.

5. The method of claim 4, wherein the disk images corresponds to a fill image backup.

6. The method of claim 5, wherein a data compression technique is implemented to eliminate unallocated data blocks in the disk image.

7. The method of claim 6, wherein the remote virtual image of the application server is mounted to a virtual machine disk.

8. The method of claim 7, wherein a file system of the remote virtual image is visible.

9. The method of claim 8 further comprising:

incrementally transferring a set of files of the application server files to the virtual machine disk; and

creating a virtual machine that includes the virtual disk image.

10. The method of claim 9 further comprising:

connecting the virtual machine a computer network such another client devices is able to access the virtual machine.

11. A computerized system comprising:

a processor configured to execute instructions;

a memory containing instructions when executed on the processor, causes the processor to perform operations that;

access a set of data blocks in a local application server disk in an application server;

determine which of the set of data blocks are used to store data;

read the data blocks used to store data to a deduplication store on the storage appliance;

determine that a modification occurs to a data block in the local application server disk of the application server;

read the modification to the deduplication store; and

generate a remote virtual image of the application server from the deduplication store.

12. The computerized system of claim 11, wherein the memory containing instructions when executed on the processor, causes the processor to perform operations that:

capture an application server machine hardware details;

save the application server machine hardware details as metadata; and

restore a disk image of the application server from deduplication store on the storage appliance to a target hypervisor system.

13. The computerized system of claim 12, wherein the disk images corresponds to a full image backup, and wherein a data compression technique is implemented to eliminated unallocated data blocks in the disk image,

14. The computerized system of claim 13, wherein the remote virtual image of the application server is mounted to a virtual machine disk, and wherein a file system of the remote virtual image is visible.

15. The computerized system of claim 14, wherein the memory containing instructions when executed on the processor, causes the processor to perform operations that:

incrementally transfer a set of files of the application server files to the virtual machine disk; and

create a virtual machine that includes the virtual disk image.

16. The computerized system of claim 15, wherein the memory containing instructions when executed on the processor, causes the processor to perform operations that:

connect the virtual machine a computer network such another client devices is able to access the virtual machine.

17. A method of disaster recovery on the storage appliance comprising:

installing a hypervisor on a storage appliance;

after a backup operation but before a restore operation, caching an entire raw image of the application server in the form of a virtual disk image;

creating a virtual machine image from the virtual disk image of the entire raw image of the application server;

transferring a set of used raw image blocks such that the virtual machine disk is fully populated with data;

mounting the virtual machine image of the application server to a virtual machine disk;

implementing incremental backups of modifications to a set of used application server data blocs to the virtual machine image;

18. The method of claim 17, further comprising:

creating a virtual machine; and

connecting the virtual machine to a computer network.