Method and system for selective acceleration of remote copy in a network of storage systems

A non-transitory computer-readable medium for storing instructions for executing a process, the instructions comprising:

• in response to a storage system being operational, using a post-site recovery module to perform steps comprising at least one of:
• causing a volume management module to recreate or restore a volume of a remote copy pair, or
• causing a remote copy management module to initiate either reverse resync or resync on remote copy pairs based on either a primary volume or a secondary volume having undergone data loss;
• determining an acceleration priority for the remote copy pairs, wherein determining the acceleration priority comprises at least one of:
• prioritizing a reverse resync operation over a resync operation and prioritizing a restore operation over a failback operation;
• in response to calculating a Recovery Time Objective (RTO) violation risk, prioritizing those remote copy pairs associated with the RTO violation risk, or
• in response to evaluating a failback delay impact risk, prioritizing those remote copy pairs based on a number of dependent applications for each remote copy pair;
• and
• determining a deceleration priority by prioritizing remote copy pairs in in-sync state based on recovery a point objective.

An apparatus, comprising:

• a processor, configured to:
• in response to a storage system being operational, using a post-site recovery module to perform steps comprising at least one of:
• causing a volume management module to recreate or restore a volume of a remote copy pair, or
• causing a remote copy management module to initiate either reverse resync or resync on remote copy pairs based on either a primary volume or a secondary volume having undergone data loss;
• determining an acceleration priority for the remote copy pairs, wherein determining the acceleration priority comprises at least one of:
• prioritizing a reverse resync operation over a resync operation and prioritizing a restore operation over a failback operation;
• in response to calculating a Recovery Time Objective (RTO) violation risk, prioritizing those remote copy pairs associated with the RTO violation risk, or
• in response to evaluating a failback delay impact risk, prioritizing those remote copy pairs based on a number of dependent applications for each remote copy pair;
• and
• determining a deceleration priority by prioritizing remote copy pairs in in-sync state based on a recovery point objective.