The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2015
Filed:
May. 26, 2006
Arthur F. Lent, Newton, MA (US);
Rebecca Beaman, Reading, MA (US);
Vitaly Revsin, Andover, MA (US);
Don Bolinger, Concord, MA (US);
Salimah Addetia, Cambridge, MA (US);
Randall Smith, Arlington, MA (US);
Hooman Vassef, Arlington, MA (US);
Arthur F. Lent, Newton, MA (US);
Rebecca Beaman, Reading, MA (US);
Vitaly Revsin, Andover, MA (US);
Don Bolinger, Concord, MA (US);
Salimah Addetia, Cambridge, MA (US);
Randall Smith, Arlington, MA (US);
Hooman Vassef, Arlington, MA (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
The present invention provides a system and method for creating and accessing a copy of one or more host-accessible storage entities contained in a persistent consistency point image (PCPI) of a volume served by a storage system. The storage entity may comprise a file system, logical volume, volume group, or 'file system on raw device'. The copy of the storage entity is generated using a logical unit number (lun) copying technique in conjunction with a PCPI table of contents (PTOC). The PTOC contains data describing contents of the PCPI, including luns of the storage entity. The PTOC is written to the volume of the storage system, which is configured to store the luns, i.e., in the context of an active file system, immediately prior to generation of the PCPI. After generation of the PCPI, the PTOC is deleted from the volume such that it is only stored within the PCPI and not within the active file system.