Method and system for handling failures by tracking status of switchover or switchback

A computer system for recovering from a failure at a disaster recovery site, comprising:

• a memory;
• and
• a processor coupled to the memory to read instructions therefrom and perform the following actions by executing the instructions:
• receive an indication to shift control of a set of volumes of a plurality of volumes, the plurality of volumes being owned by the first storage node, the set of volumes being originally owned by a second storage node, and the first storage node being a disaster recovery partner of the second storage node;
• responsive to the indication to shift control of the set of volumes, execute a first action of a plurality of actions;
• after execution of the first action, set a status of a flag to correspond to a first value;
• and
• during a reboot of the first storage node:
• determine the status of the flag;
• and
• determine, based on the status of the flag, whether to mount the set of volumes during reboot at the first storage node.

A computer-readable medium having instructions recorded thereon, that when executed by a processor, cause the processor to perform operations, comprising:

• receiving an indication to shift control of a set of volumes of a plurality of volumes, the plurality of volumes being owned by the first storage node, the set of volumes being originally owned by a second storage node, and the first storage node being a disaster recovery partner of the second storage node;
• while shifting control of the set of volumes, changing a status of a flag corresponding to a progress of the shifting;
• and
• during a reboot of the first storage node:
• determining the status of the flag;
• and
• determining, based on the status of the flag, whether to mount the set of volumes during reboot at the first storage node.