Managing health conditions to determine when to restart replication after a swap triggered by a storage health event

A system for redirecting host access from a first server to a second server, wherein the first server manages access to a first storage and the second server manages access to a second storage, comprising:

• a processor;
• and
• a computer readable storage medium having computer readable program code embodied therein that when executed by the processor performs operations, the operations comprising:
• determining a health condition with respect to access to the first storage that triggers a swap operation;
• performing the swap operation to redirect host Input/Output (I/O) requests to data from the first server to the second server in response to determining the health condition, wherein after the swap operation the I/O requests are directed to the second server and the second storage;
• determining that the health condition is resolved;
• and
• instructing the second server to mirror data in the second storage to the first server to store in the first storage in response to determining that the health condition is resolved.

A method for redirecting host access from a first server to a second server, wherein the first server manages access to a first storage and the second server manages access to a second storage, comprising:

• determining a health condition with respect to access to the first storage that triggers a swap operation;
• performing the swap operation to redirect host Input/Output (I/O) requests to data from the first server to the second server in response to determining the health condition, wherein after the swap operation the I/O requests are directed to the second server and the second storage;
• determining that the health condition is resolved;
• and
• instructing the second server to mirror data in the second storage to the first server to store in the first storage in response to determining that the health condition is resolved.