Parallel multiplex storage systems

A data system including:

• a primary data storage device;
• a secondary data storage device communicatively linked to the primary data storage device;
• and
• a processor communicatively linked to the primary data storage device, the processor operative to receive an indication that a data operation has failed in the secondary data storage device, suspend data operations sent to the secondary data storage device from a primary data storage device, determine a failure policy set by a user, and initiate a first policy responsive to determining that the user has set the first policy, the first policy including determining whether the failure indication indicates a failure of the primary data storage device, sending a status query to the secondary data storage device responsive to determining that the failure indication does not indicate a failure of the primary data storage device, determining whether a response to the status query has been received from the secondary data storage device, determining whether the response to the status query indicates a failure of the secondary data storage device responsive to determining that the response to the status query has been received from the secondary data storage device, and continuing processing tasks on a server and data operations on the primary data storage device responsive to determining that the response to the status query indicates a failure of the secondary data storage device.

A non-transitory computer readable storage medium for storing instructions including the steps of:

• receiving an indication that a data operation has failed in a primary data storage device;
• suspending data operations sent to the primary data storage device from a secondary data storage device;
• determining a failure policy set by a user;
• and
• initiating a first policy responsive to determining that the user has set the first policy, the first policy including:
• determining whether the failure indication indicates a failure of the secondary data storage device;
• sending a status query to the primary data storage device responsive to determining that the failure indication does not indicate a failure of the secondary data storage device;
• determining whether a response to the status query has been received from the primary data storage device;
• determining whether the response to the status query indicates a failure of the primary data storage device responsive to determining that the response to the status query has been received from the primary data storage device;
• and
• continuing processing tasks on the server and data operations on the secondary data storage device responsive to determining that the response to the status query indicates a failure of the primary data storage device.