CONFIGURATION OF PEERED CLUSTER STORAGE ENVIRONMENT ORGANIZED AS DISASTER RECOVERY GROUP

摘要

A technique efficiently configures a peered cluster storage environment. The configuration technique illustratively includes three phases: a discovery phase, a node setup phase and a cluster setup phase. The discovery phase may be employed to initiate discovery of nodes of a disaster recovery (DR) group through transmission of multicast advertisement packets by the nodes over interconnects, including a Fibre Channel (FC) fabric, to each other node of the group. In the node setup phase, each node of a cluster assigns its relationships to the nodes discovered and present in the FC fabric; illustratively, the assigned relationships include high availability (HA) partner, DR primary partner and DR auxiliary partner. In the cluster setup phase, the discovered nodes of the FC fabric are organized as the peered cluster storage environment (DR group) configured to service data in a highly reliable and available manner.

主权项

1. A method comprising:
generating an advertisement at each node interconnected by a communication fabric of a disaster recovery (DR) group including two or more high availability (HA) groups; transmitting the advertisement as a multicast transmission over the communication fabric, wherein the advertisement includes a payload containing properties of the node transmitting the advertisement; processing the properties of the advertisement at each node of the DR group receiving the advertisement to assign roles to each node, wherein the assignment of roles is determined by sorting and ordering of each node to enable pairing of partner nodes based on ordinal numbering of a system identifier of each node; constructing a node list indicating the assigned role of each node of the DR group; and verifying a DR group configuration by comparing the node list to a cluster configuration table replicated at each node.