Data recovery systems and methods

• US 8,327,098 B2
• Filed: 01/18/2011
• Issued: 12/04/2012
• Est. Priority Date: 02/23/2007
• Status: Active Grant

• Current Assignee: Lewis Rice and Fingersh (Lewis Rice LLC)
• Original Assignee: Lewis Rice and Fingersh (Lewis Rice LLC)
• Inventors: Obernuefemann, Paul R.
• Primary Examiner(s): NGUYEN, THAN VINH
• Application Number:
  US13/008,721
• Publication Number:
  US 20110113209A1
• Time in Patent Office: 686 Days
• Field of Search: None
• US Class Current: 711/162
• CPC Class Codes: G06F 11/1456 Hardware arrangements for backup
• CPC Class Codes: G06F 11/1461 Backup scheduling policy
• CPC Class Codes: G06F 11/1464 for networked environments
• CPC Class Codes: G06F 11/1469 Backup restoration techniques

Abstract

Nearline disaster recovery (“nearline DR”) storage systems and methods that permit the use of previously restored stored data from a near time period by virtual applications operating off a backup storage location during the period of disaster recovery at a primary site. This is generally referred to as a “nearline DR storage process.”

Claims

1. A nearline disaster recovery storage system, the system comprising:

a first site having a server supporting an operating system;

a data set generated and stored at the first site;

a backup data set duplicative of the data set, the backup data set being generated and stored at the first site;

a second site separated from the first site, the second site comprising;

a storage facility for the backup data set; and

a second server; and

a virtual application server comprising the operating system and a means for allowing remote access to the virtual application server;

a second data set generated and stored at the second site;

a second backup data set duplicative of the second data set, the second backup data set being generated and stored at the second site;

at least one tertiary site separated from the first site and the second site, the tertiary site comprising;

a tertiary storage facility for the second backup data set; and

a tertiary server; and

a tertiary virtual application server comprising the operating system and the means for allowing remote access to the tertiary virtual application server; and

a network connecting the first site, the second site and the at least one tertiary site;

wherein the backup data set is transported from the first site to the second site over the network after the generation of the backup data set;

wherein the second server restores the backup data set to a native format;

wherein after the backup data set is restored, in the event the first site becomes unusable, the virtual application server can attach to the backup data set;

wherein the second backup data set is transported from the second site to the at least one tertiary site over the network after the generation of the second backup data set;

wherein the at least one tertiary site restores the second backup data set to a native format;

wherein after the second backup data set is restored, in the event the first site and the second site become unusable, the tertiary virtual application server can attach to the second backup data set.

2. The system of claim 1, wherein the backup data set and the second backup data set can be created at a frequency chosen by a system user.

3. The system of claim 1, wherein the second server restores the backup data set as a matter of course.

4. The system of claim 1, wherein the at least one tertiary server restores the second backup data set as a matter of course.

5. The system of claim 1, wherein the backup data set and the second backup data set can be generated on command.

6. The system of claim 1, wherein the transport of the backup data and the second backup data is incremental.

7. The system of claim 1, wherein the virtual application server and the tertiary virtual application server host programs for e-mail, document use and business accounting.

8. The system of claim 1, wherein the virtual application server and the tertiary virtual application server may be used remotely.

9. The system of claim 1, wherein the second backup set is transferred from the at least one tertiary backup site to the first site after restoration of the first site.