Methods and systems for restoring storage objects

Patent metadata

Field	Value
Publication number	US-2016110264-A1
Application number	US-201414517011-A
Country	US
Kind code	A1
Filing date	Oct 17, 2014
Priority date	Oct 17, 2014
Publication date	Apr 21, 2016
Grant date	—

Abstract

Methods and systems for restoring storage objects are provided. The method includes determining if a source storage object and a target storage object are located within a same storage volume, where the source storage object is associated with a first drive and the target storage object is associated with a second drive; and using a point in time copy of the source storage object for restoring the source storage object at the second drive.

First claim

What is claimed is:

1 . A machine implemented method, comprising:
determining if a source storage object and a target storage object are located within a same storage volume, where the source storage object is associated with a first drive and the target storage object is associated with a second drive; and using a point in time copy of the source storage object for restoring the source storage object at the second drive.

2 . The method of claim 1 , further comprising:
taking the target storage object offline; and providing a point in time copy name to a restore module, when the point in time copy name is specified in a restore request.

3 . The method of claim 2 , further comprising:
taking a point in time copy of the source storage object, when the point in time copy name is not specified in the restore request.

4 . The method of claim 1 , further comprising:
taking the target storage object offline and unmapping it from a computing device, when the source storage object and the target storage object are located within the same storage volume; and generating a clone of the source storage object and naming the clone with a same name as the target storage object.

5 . The method of claim 4 , further comprising:
mapping the clone of the source storage object to the computing device using the second storage drive.

6 . The method of claim 1 , wherein the source storage object and the target storage object are logical unit numbers (LUNs) used for storing information at a storage device.

7 . The method of claim 1 , wherein a storage system interface module maintains a mapping data structure that is used for restoring the source storage object at the second drive.

8 . A non-transitory, machine readable storage medium having stored thereon instructions for performing a method, comprising machine executable code which when executed by at least one machine, causes the machine to:
determine if a source storage object and a target storage object are located within a same storage volume, where the source storage object is associated with a first drive and the target storage object is associated with a second drive; and use a point in time copy of the source storage object for restoring the source storage object at the second drive.

9 . The storage medium of claim 8 , wherein the machine executable code further causes the machine to:
take the target storage object offline; and provide a point in time copy name to a restore module, when the point in time copy name is specified in a restore request.

10 . The storage medium of claim 9 , wherein the machine executable code further causes the machine to:
take a point in time copy of the source storage object, when the point in time copy name is not specified in the restore request.

11 . The storage medium of claim 8 , wherein the machine executable code further causes the machine to:
take the target storage object offline and unmapping it from a computing device, when the source storage object and the target storage object are located within the same storage volume; and generate a clone of the source storage object and naming the clone with a same name as the target storage object.

12 . The storage medium of claim 11 , wherein the machine executable code further causes the machine to:
map the clone of the source storage object to the computing device using the second storage drive.

13 . The storage medium of claim 8 , wherein the source storage object and the target storage object are logical unit numbers (LUNs) used for storing information at a storage device.

14 . The storage medium of claim 8 , wherein a storage system interface module maintains a mapping data structure that is used for restoring the source storage object at the second drive.

15 . A system comprising:
a memory with machine readable medium comprising machine executable code having stored thereon instructions; and a processor module coupled to the memory, the processor module configured to execute the machine executable code to: determine if a source storage object and a target storage object are located within a same storage volume, where the source storage object is associated with a first drive and the target storage object is associated with a second drive; and use a point in time copy of the source storage object for restoring the source storage object at the second drive.

16 . The system of claim 15 , wherein the machine executable code further causes the machine to:
take the target storage object offline; and provide a point in time copy name to a restore module, when the point in time copy name is specified in a restore request.

17 . The system of claim 16 , wherein the machine executable code further causes the machine to:
take a point in time copy of the source storage object, when the point in time copy name is not specified in the restore request.

18 . The system of claim 15 , wherein the machine executable code further causes the machine to:
take the target storage object offline and unmapping it from a computing device, when the source storage object and the target storage object are located within the same storage volume; and generate a clone of the source storage object and naming the clone with a same name as the target storage object.

19 . The system of claim 18 , wherein the machine executable code further causes the machine to:
map the clone of the source storage object to the computing device using the second storage drive.

20 . The system of claim 15 , wherein the source storage object and the target storage object are logical unit numbers (LUNs) used for storing information at a storage device.

21 . The system of claim 15 , wherein a storage system interface module maintains a mapping data structure that is used for restoring the source storage object at the second drive.

Assignees

• Netapp Inc

Inventors

• Mehta Tarun
• Poluri Venudhar

Classifications

• G06F11/1662

  the resynchronized component or unit being a persistent storage device (re-synchronization of failed mirror storage G06F11/2082; rebuild or reconstruction of parity RAID storage G06F11/1008) · CPC title

• G06F11/2094

  Redundant storage or storage space (G06F11/2056 takes precedence) · CPC title

• H04L67/1097 Primary

  for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS] · CPC title

• G06F11/1464 Primary

  for networked environments · CPC title

• G06F2201/84

  Using snapshots, i.e. a logical point-in-time copy of the data · CPC title