Systems and methods for management of virtualization data

Patent metadata

Field	Value
Publication number	US-9740723-B2
Application number	US-201414275381-A
Country	US
Kind code	B2
Filing date	May 12, 2014
Priority date	Sep 5, 2008
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

Described in detail herein is a method of copying data of one or more virtual machines being hosted by one or more non-virtual machines. The method includes receiving an indication that specifies how to perform a copy of data of one or more virtual machines hosted by one or more virtual machine hosts. The method may include determining whether the one or more virtual machines are managed by a virtual machine manager that manages or facilitates management of the virtual machines. If so, the virtual machine manager is dynamically queried to automatically determine the virtual machines that it manages or that it facilitates management of. If not, a virtual machine host is dynamically queried to automatically determine the virtual machines that it hosts. The data of each virtual machine is then copied according to the specifications of the received indication.

First claim

We claim:

1. An automated method of managing data of one or more virtual machines managed by a virtual machine manager, wherein the method is performed by one or more physical computing systems, each computing system having a processor and memory, the method comprising:
receiving a request to copy data of one or more virtual machines to a physical storage device;
determining whether the one or more virtual machines are managed by a virtual machine manager,
wherein the determining is performed by reading a stored indication of the virtual machine manager, or by scanning a network for the virtual machine manager;

based on the determining that the one or more virtual machines are managed by the virtual machine manager, automatically accessing the virtual machine manager;
automatically requesting information from the virtual machine manager regarding virtual machines that the virtual machine manager manages;
automatically determining, by the one or more computing systems, from information provided by the virtual machine manager, the virtual machines managed by the virtual machine manager; and
for at least one of the determined virtual machines, copying the data of the virtual machine to the physical storage device.

2. The automated method of claim 1 , wherein the request further specifies at least one of the following:
that a file-level copy is to be performed for at least one virtual machine managed by the virtual machine manager;
that a volume-level copy is to be performed for at least one virtual machine managed by the virtual machine manager; and
that a disk-level copy is to be performed for at least one virtual machine managed by the virtual machine manager.

3. The automated method of claim 1 , wherein the request specifies that a disk-level copy is to be performed for at least one virtual machine managed by the virtual machine manager, and wherein the method further comprises:
determining a virtual machine disk file in which the at least one virtual machine stores data;
copying the virtual machine disk file from a filesystem of a virtual machine host hosting the at least one virtual machine to the storage device;
extracting information from the virtual machine disk file, wherein extracting information includes extracting information that describes a location of a virtual file allocation table utilized by the at least one virtual machine;
associating the extracted information with the at least one virtual machine; and
storing the extracted information in association with the at least one virtual machine.

4. The automated method of claim 1 , wherein the request specifies that a disk-level copy is to be performed for at least one virtual machine managed by the virtual machine manager, and wherein the method further comprises:
determining at least two virtual machine disk files in which the at least one virtual machine stores data;
copying the at least two virtual machine disk files from a filesystem of a virtual machine host hosting the at least one virtual machine to the storage device;
extracting from the at least two virtual machine disk files information that describes the relationships between the virtual machine disk files;
extracting from the at least two virtual machine disk files information that describes at least one virtual volume contained within one or more of the at least two virtual machine disk files;
extracting from the at least two virtual machine disk files information that describes at least one virtual file allocation table that describes locations of virtual files contained within the at least one virtual volume; and
storing the extracted information.

5. The automated method of claim 1 , further comprising, for at least one virtual machine:
determining distinct data objects within the virtual machine data;
indexing the distinct data objects; and
storing the indexed distinct data objects in an index, wherein the index also includes indexed distinct data objects associated with at least one non-virtual machine.

6. The automated method of claim 1 , further comprising:
determining distinct data objects within the virtual machine data;
indexing the distinct data objects within the virtual machine data;
storing the indexed distinct data objects in an index, wherein the index also includes indexed distinct data objects associated with at least one non-virtual machine;
receiving a request to query the index; and
returning search results responsive to the request, wherein the search results include search results associated with distinct data objects of the least one virtual machine and with distinct data objects at least one non-virtual machine.

7. The automated method of claim 1 , further comprising:
determining distinct data objects within the virtual machine data; and
for at least one of the distinct data objects:
generating a substantially unique identifier for the distinct data object;
determining, based on the substantially unique identifier, if an instance of the distinct data object has already been stored on a single instance storage device; and
if an instance of the distinct data object has not already been stored on the single instance storage device, then storing the data object on the single instance storage device.

8. The automated method of claim 1 wherein, for at least one virtual machine, copying the data of the virtual machine to the storage device includes determining a virtual machine disk file in which the virtual machine stores data and copying the virtual machine disk file from a filesystem of a virtual machine host hosting the virtual machine to the storage device, wherein the virtual machine is a first type of virtual machine and the virtual machine disk file is in a first format utilized by the first type of virtual machine, and wherein the method further comprises:
receiving a request to convert the virtual machine disk file to a virtual machine disk file in a second format utilized by a second type of virtual machine;
accessing the virtual machine disk file stored on the storage device;
converting the virtual machine disk file to a virtual machine disk file in the second format; and
copying the converted virtual machine disk file in the second format to a location where it may be utilized by a virtual machine of the second type.

9. The automated method of claim 1 wherein automatically determining includes automatically determining multiple virtual machines hosted by a virtual machine host, and wherein the method further comprises:
determining a threshold number of simultaneous storage operations that can be performed upon the data of the multiple virtual machines hosted by the virtual machine host; and
performing multiple storage operations upon the data of the multiple virtual machines hosted by the virtual machine host,
wherein the number of simultaneous copy operations performed upon the data of the multiple virtual machines hosted by the virtual machine host does not exceed the threshold number.

10. The automated method of claim 1 , wherein automatically determining includes automatically determining multiple virtual machines, and wherein the method further comprises:
populating a first index with metadata corresponding to data of a first virtual machine, wherein the metadata includes a location of the data of the first virtual machine on the storage device;
populating a second index with metadata corresponding to the multiple virtual machines, wherein the metadata includes a reference to the first index;
receiving a request to access data of the first virtual machine on the storage device;
analyzing the metadata included in the second index;
determining the reference to the first index;
analyzing th

Assignees

• Commvault Systems Inc

Inventors

• Prahlad Anand
• Pawar Rahul S
• Varadharajan Prakash
• Bedadala Pavan Kumar Reddy

Classifications

• G06F16/383

  using metadata automatically derived from the content · CPC title

• G06F16/14

  Details of searching files based on file metadata · CPC title

• G06F2201/815

  Virtual · CPC title

• G06F11/1469

  Backup restoration techniques · CPC title

• G06F11/1456

  Hardware arrangements for backup · CPC title