Automated error recovery of a licensed internal code update on a storage controller
View Patent ↗A system, method and article of manufacture are provided for the automatic recovery from errors encountered during an automated Licensed Internal Code (LIC) update on a storage controller. The present invention functions with a concurrent or nonconcurrent automated LIC update. The automated recovery from many error conditions is transparent to the attached host system and on-site service personnel, resulting in an improvement in the LIC update process.
1. A method for automated error recovery of a storage controller Licensed Internal Code (“LIC”) update process, comprising the steps of:
running an automated LIC dispatcher process that retrieves a state action from a state action table and executes said state action;
determining if said state action has executed with at least one error;
in response to determining that said state action has executed with at least one error, entering an error recovery procedure;
determining if an error recovery count for a current state action is less than a maximum error recovery count;
in response to determining that an error recovery count for a current state action is less than a maximum error recovery count, incrementing said error recovery count, otherwise exiting said error recovery procedure with a failed status;
determining if an error recovery is possible;
in response to determining that an error recovery is possible, executing at least one error recovery action, otherwise exiting said error recovery procedure with said failed status;
determining if said at least one error recovery action was successful;
in response to determining that said at least one error recovery action was successful, determining a recovery passed state action, and exiting said error recovery procedure with a passed status, otherwise exiting said error recovery procedure with said failed status;
in response to determining that said state action has not executed with at least one error, retrieving a next state action;
determining if said next state is a last state action;
in response to determining that said next state action is not a last state action, returning to said executing step; and
in response to determining that said next state action is a last state action, ending said storage controller LIC update process.
2. The method of claim 1 , further comprising the step of retrieving said error recovery action from a state action table.
3. The method of claim 1 , further comprising the steps of:
in response to exiting said automated error recovery process with a failed status:
suspending storage controller operation;
requesting repair of said storage controller;
after repair of said storage controller, reentering said update process at a reEntry state action obtained from a state action table.
4. The method of claim 3 , wherein the requesting step further comprises the steps of:
automatically contacting a customer engineer; and
sending diagnostic, location, and customer information to said customer engineer.