US 12,093,151 B2
Managing reference snapshots across multiple sites for efficient failover/failback
Kai Tan, Cary, NC (US); Karthikeyan Vaideswaran, Morrisville, NC (US); Pranab Patnaik, Cary, NC (US); and Ramya Uthamarajan, Cary, NC (US)
Assigned to Nutanix, Inc., San Jose, CA (US)
Filed by Nutanix, Inc., San Jose, CA (US)
Filed on Oct. 31, 2022, as Appl. No. 17/977,248.
Prior Publication US 2024/0143460 A1, May 2, 2024
Int. Cl. G06F 11/20 (2006.01); G06F 11/14 (2006.01)
CPC G06F 11/2025 (2013.01) [G06F 11/1461 (2013.01); G06F 11/1464 (2013.01); G06F 2201/84 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A non-transitory computer readable medium including program instructions for execution on a processor, the program instructions configured to:
create a first recovery point (RP) for failover data to retain a first common snapshot across nodes of a multi-site disaster recovery (DR) environment according to a recovery point objective (RPO) of failover data at each site indicating an expiry time of the first RP;
lock the first RP using a first tag to preserve and maintain the first RP throughout a duration of the locking; and
replicate the first RP with the first tag from a first site to one or more other sites of the DR environment, wherein the one or more other sites enforce the locking of the first RP based on the first tag.