US 12,153,503 B2
Mediator assisted switchover between clusters
Sasidharan Krishnan, Fremont, CA (US); Kalaivani Arumugham, Sunnyvale, CA (US); Preksha Bansal, San Jose, CA (US); Vijaya Kumar Chakravarthy Ekkaladevi, Dublin, CA (US); and Ryan Edward Bartlett, Harmony, PA (US)
Assigned to NetApp, Inc., San Jose, CA (US)
Filed by NetApp Inc., San Jose, CA (US)
Filed on Oct. 31, 2022, as Appl. No. 17/976,952.
Application 17/976,952 is a continuation of application No. 17/160,706, filed on Jan. 28, 2021, granted, now 11,487,635.
Claims priority of provisional application 63/116,577, filed on Nov. 20, 2020.
Prior Publication US 2023/0053316 A1, Feb. 16, 2023
Int. Cl. G06F 11/20 (2006.01); G06F 11/18 (2006.01)
CPC G06F 11/2025 (2013.01) [G06F 11/181 (2013.01); G06F 11/185 (2013.01); G06F 11/2028 (2013.01); G06F 11/2076 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a mediator associated with a mediator mailbox;
a first cluster hosting a first node associated with a first local mailbox and a first remote mailbox; and
a second cluster hosting a second node associated with a second local mailbox and a second remote mailbox, wherein a quorum vote is performed as part of executing an operation, wherein the quorum vote corresponds to a local vote derived from whether at least one of the first local mailbox or the second local mailbox is operational, a remote vote derived from whether at least one of the first remote mailbox or the second remote mailbox is operational, and a mediator vote derived from whether the mediator mailbox is operational, wherein the operation is designated as successful or failed based upon the quorum vote, wherein the operation is an automated switchover operation to switch over from the first cluster processing client operations to the second cluster processing the client operations, wherein the quorum vote is used to determine whether to perform the automated switchover operation.