Invention Grant
- Patent Title: Snapshot restore workflow
-
Application No.: US14815064Application Date: 2015-07-31
-
Publication No.: US10394660B2Publication Date: 2019-08-27
- Inventor: David Brittain Bolen , Suhas Prakash , Anshul Pundir , Ling Zheng
- Applicant: NetApp, Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: NetApp, Inc.
- Current Assignee: NetApp, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Cesari and McKenna, LLP
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F11/14

Abstract:
A snap restore technique efficiently restores snapshots of storage containers served by a storage input/output (I/O) stack executing on one or more nodes of a cluster. A Small Computer Systems Interface administration layer interacts with a volume layer of the storage I/O stack to manage and implement a snap restore procedure to restore one or more snapshots of a storage container. The storage container may be a logical unit (LUN) embodied as parent volume (active volume) and the snapshot may be represented as an independent volume embodied as read-only copy of the active volume. The snap restore procedure may be configured to allow restoration to a single snapshot of a LUN or restoration of a plurality of LUNs organized as a consistency group from a group of snapshots. Restoration of the LUN from a snapshot involves (i) creation of another independent volume embodied as a read-write copy (clone) of the snapshot, (ii) replacement of the (old) active volume with the clone, (iii) deletion of the old active volume, and (iv) mapping of the LUN to the clone (i.e., a new active volume).
Public/Granted literature
- US20170031774A1 SNAPSHOT RESTORE WORKFLOW Public/Granted day:2017-02-02
Information query