Cisco Technology, Inc.

Vishwas Srinivasan

Geetha Srikantan

Suman Saha

Junxu Li

Rajesh Rajashekar

In one embodiment, systems and methods for performing asynchronous local migration of metadata between data stores and asynchronous remote replication of metadata between sites are described. The methods may use various configurations, including 1-to-1, 1-to-N, N-to-1, M-to-N, etc. The method for performing asynchronous local migration at a first site may include pausing critical operation(s) at an old data store, copying metadata from the old data store to a new data store, flagging table(s) in the old data store as complete, and deleting the metadata from the old data store. The method for asynchronous remote replication may include determining that local migration is complete, identifying second metadata from the new data store for which the first site is a primary authority, sending, to the second site, the second metadata, receiving, from the second site, third metadata for which the second site is the primary authority and storing the third metadata.

Asynchronous metadata replication and migration between compute sites

A method includes: receiving, at a cluster controller of a first cluster, a request for pairing a first datastore of the first cluster to a second datastore of a second cluster, wherein each of the first cluster and the second cluster includes a plurality of datastores; determining whether the first datastore is available for pairing; in response to determining that the first datastore is available for pairing, generating an entry in a mapping table indicating that the first datastore is paired with the second datastore; receiving information associated with the second datastore; and in response to receiving the information, storing the information in the first datastore. The second cluster performs similar operations as those performed by the first cluster to achieve a bidirectional reservation between the first cluster and the second cluster.

Growing community of inventors

Belmont, CA, United States of America

Vishwas Srinivasan