ITEM-LEVEL RESTORATION AND VERIFICATION OF IMAGE LEVEL BACKUPS

• US 20110087874A1
• Filed: 10/08/2010
• Published: 04/14/2011
• Est. Priority Date: 10/12/2009
• Status: Active Grant

• Current Assignee: Veeam Software Group GmbH
• Original Assignee: Veeam Software International Ltd.
• Inventors: GOSTEV, Anton, TIMASHEV, Ratmir
• Granted Patent: US 8,402,309 B2
• Time in Patent Office: Days
• US Class Current: 713/100
• CPC Class Codes: G06F 11/1446 Point-in-time backing up or restoration of persistent data
• CPC Class Codes: G06F 11/1448 Management of the data involved in backup or backup restore
• CPC Class Codes: G06F 11/1453 using de-duplication of the data
• CPC Class Codes: G06F 11/1469 Backup restoration techniques
• CPC Class Codes: G06F 11/3672 Test management
• CPC Class Codes: G06F 2009/45579 I/O management, e.g. providing access to device drivers or storage
• CPC Class Codes: G06F 2201/80 Database-specific techniques
• CPC Class Codes: G06F 9/44589 Program code verification, e.g. Java bytecode verification, proof-carrying code high-level semantic checks G06F8/43; testing and debugging software G06F11/36
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects

Abstract

Systems and methods for item-level restoration from and verification of an image level backup without fully extracting it. The method receives backup parameters and selection of an image level backup to restore or verify and initializes virtual storage. The method attaches the virtual storage to a hypervisor to launch a virtual machine (VM) to test and restore data objects. The method stores VM virtual disk data changes resulting from restoration and verification in a changes storage. The method optionally reconfigures VMs to use an isolated network. The method optionally uses a routing appliance to provide access to VMs running in the isolated network from a production network. The method determines if the VM operating system (OS) is able to start using restored copies of selected data objects and tests applications associated with selected data objects. The method displays restoration and test results in an interface and automatically delivers the results.

Claims

1. A system for verifying virtual machine (VM) data files, comprising:

a hypervisor configured to receive a selection of an image level backup file to verify;

a virtual storage connected to the hypervisor;

a data conversion engine configured to perform on-demand decompression, de-deduplication, decryption, and extraction to translate selected portions of the selected image level backup file so as to represent (publish) contents of selected portions of the selected image level backup to the hypervisor in the native (source) format without fully extracting contents of the image level backup;

at least one test VM, wherein the hypervisor is configured to launch the at least one test VM;

a changes storage used to store test VM virtual disk data changes inflicted by running and verifying the VM, wherein the changes storage is implemented using virtual storage logic; and

an operating system (OS)/application verification module, wherein the OS/application module is configured to perform, using backup testing parameters, automated testing of functionality of an OS or an application.

2. The system of claim 1, further comprising:

a plurality of test VMs launched from the hypervisor; and

a routing appliance connected to at least a production network and an isolated network, wherein the routing appliance is configured to route network traffic between the production network and the isolated network.

3. The system of claim 1, wherein the data conversion engine is further configured to perform decompression, de-deduplication, decryption, and extraction as-needed, and wherein the changes storage is implemented using backup file storage capabilities.

4. The system of claim 1, wherein the hypervisor has disk input output (I/O) redirection capabilities, and wherein the changes storage is implemented using the hypervisor disk I/O redirection capabilities.

5. The system of claim 1, further comprising an operator console having a user interface, wherein an application item-level restore module is accessible by the operator console, and wherein backup testing parameters are provided through the user interface.

6. The system of claim 1, wherein the backup verification parameters are one or more of:

a read-only image level backup file repository for the selected image level backup;

backup file entities to be tested in cases when the selected image level backup contains image level backups of multiple VMs;

data objects to be tested, wherein the data objects are within the selected image level backup, and wherein the data objects are associated with one or more applications;

a recovery point to test;

or

an application test to perform.

7. The system of claim 6, wherein the recovery point to test is a specific hour, minute or second of a day the image level backup was created.

8. A method for verifying an image level backup, comprising:

receiving backup testing parameters;

initializing virtual storage;

accessing an image level backup file;

receiving a selection of at least one data object from the image level backup to verify, wherein the at least one data object is associated with an application;

partially decompressing, de-duplicating, or decrypting the image level backup file to extract the at least one data object so as to provide contents of the at least one data object to a hypervisor without fully extracting contents of the image level backup;

attaching the virtual storage to the hypervisor;

attaching a changes storage to the virtual storage or to the hypervisor, wherein the changes storage is configured to store disk data changes inflicted by verification of the image level backup;

launching, by the hypervisor, at least one test virtual machine (VM);

determining if the operating system (OS) of the at least one test VM has booted successfully; and

in response to determining that the OS has booted successfully, executing tests using the selected data object and its associated application.

9. The method of claim 8, wherein the determining comprises determining if the OS has booted up within a predetermined amount of time received prior to the determining.

10. The method of claim 8, wherein the tests comprise one or more of automated scripts or executables.

11. The method of claim 10, wherein the tests further comprise user-initiated steps.

12. The method of claim 8, wherein the tests comprise one or more of:

pinging the at least one test VM;

querying the status of a process or a service that is expected to be running on the at least one test VM;

querying the contents of an operating system (OS) running on the at least one test VM;

querying the contents of an application log file;

querying an events database;

establishing a connection to running applications using application programming interfaces (APIs);

running scripts or executable files against applications executing on the at least one test VM; and

leaving the at least one test VM running to allow for manual verification by an operator.

13. The method of claim 8, wherein the launching comprises launching a plurality of virtual machines (VMs).

14. The method of claim 8, further comprising:

displaying results of the executed tests; and

generating an automated notification containing the test results.

15. The method of claim 8, further comprising:

in response to determining that the VM did not launch or the OS has not booted successfully, generating an automated notification.

16. The method of claim 15, wherein the automated notification is one or more of:

an email message;

a log entry in a data file;

a Short Message Service (SMS) text message;

a fax;

an Instant Message (IM);

or

an automated posting to a website.

17. The method of claim 8, further comprising, after displaying the results of the executed tests:

shutting down the at least one test VM; and

deleting data from the changes storage.

18. A non-transitory computer-readable medium having instructions stored thereon for verifying an image level backup, the instructions comprising:

instructions for receiving backup testing parameters;

instructions for initializing virtual storage;

instructions for accessing an image level backup;

instructions for receiving a selection of at least one data object from the image level backup to verify, wherein the data object is associated with an application;

instructions for partially decompressing, de-duplicating, or decrypting the image level backup to extract the at least one data object without fully extracting contents of the image level backup;

instructions for attaching the virtual storage to a hypervisor;

instructions to provide contents of the at least one data object to the hypervisor;

instructions for launching, from the hypervisor, at least one test virtual machine (VM);

instructions for determining if the operating system (OS) of the at least one test VM has booted successfully;

in response to determining that the OS has booted successfully, instructions for executing tests using the selected data object and its associated application; and

instructions for displaying results of the executed tests.

19. The non-transitory computer-readable medium of claim 18, wherein the backup testing parameters are one or more of:

a test script or executable file location;

a recovery point to test;

or

one or more application tests to perform.

20. A system for item-level restoration, the system comprising:

an operator console having a user interface;

a hypervisor connected to the operator console and connected to a virtual storage;

at least one restored virtual machine (VM) launched on the hypervisor;

a virtual storage that represents the content of computer image files to hypervisor without prior de-staging of images from backup file;

a image level backup file storage accessible by the virtual storage;

a changes storage connected to the virtual storage;

an application item-level restore module connected to the hypervisor and accessible by the operator console, wherein item restoration parameters are provided through the operator console interface and the corresponding application items are fetched and stored.

21. The system of claim 20 further comprising:

a plurality of restored VMs launched on the hypervisor; and

a routing appliance connected to at least a production network and an isolated network, wherein the routing appliance is configured to route network traffic between the production network and the isolated network.

22. The system of claim 21, wherein the plurality of restored VMs are started

according to a restored VM dependency list.

23. The system of claim 20, wherein the item-level restore module comprises

application item level restore logic.

24. The system of claim 20, wherein the item restoration parameters are any of:

an Internet Protocol (IP) address of a virtualized service;

an application item to be fetched; and

location for saving restored items.

25. A method for item-level restoration, the method comprising:

receiving restore parameters, wherein the restore parameters include at least a restore location;

initializing virtual storage;

accessing an image level backup;

attaching the virtual storage to a hypervisor;

creating a restored VM on the hypervisor;

configuring and launching the restored VM;

configuring restore logic;

providing the restore parameters to the restore logic; and

restoring items defined by restore parameters and saving the items into the restore location.

26. The method of claim 25, further comprising:

shutting down the restored VM; and

deleting the restored VM configuration from the hypervisor.

27. A system for recovering a virtual machine (VM) from an image level backup,

comprising:

a hypervisor configured to receive a selection of an image level backup and restore parameters;

a virtual storage connected to the hypervisor;

a data conversion engine configured to perform partial decompression, de-deduplication, decryption, and extraction to translate selected portions of the selected image level backup so as to represent contents of selected portions of the selected image level backup on-the-fly at the time the corresponding portions of data are needed to the hypervisor without fully extracting contents of the image level backup;

at least one VM, wherein the hypervisor is configured to run the at least one VM;

a changes storage used to store VM virtual disk data changes inflicted by recovery of data objects from the image level backup, wherein the changes storage is implemented using virtual storage logic; and

a module connected to the hypervisor, wherein the module is configured to perform, using the restore parameters and the changes storage, automated recovery of the at least one VM.