Methods for improving management of input or output operations in a network storage environment with a failure and devices thereof

A non-transitory computer readable medium having stored thereon instructions for improving management of input or output (I/O) operations in a network storage environment with a failure comprising executable code which when executed by a processor, causes the processor to perform steps comprising:

• identifying one of the one or more of the plurality of node controller computing devices with a failure;
• designating as ineligible to service any I/O operation and disabling one or more I/O ports of the identified one of the plurality of node controller computing devices with the failure;
• selecting another one of the plurality of node controller computing devices without a failure to service any I/O operation of the identified one of the plurality of node controller computing devices with the failure based on a stored failover policy;
• directing any of the I/O operations to the selected another one of the plurality of node controller computing devices for servicing and then routing of any of the serviced I/O operations via a switch to the identified one of the plurality of node controller computing devices with the failure to execute any of the routed I/O operations with a storage device;
• identifying when the identified one of the plurality of node controller computing devices with the failure is repaired;
• and
• removing the designation as ineligible and enabling one or more I/O ports of the identified one of the plurality of node controller computing devices identified with the repair.

A network storage management system comprising:

• a plurality of node controller computing devices, wherein one or more of the plurality of node controller computing devices comprise a memory coupled to a processor which is configured to be capable of executing programmed instructions comprising and stored in the memory to:
• identify one of the one or more of the plurality of node controller computing devices with a failure;
• designate as ineligible to service any I/O operation and disabling one or more I/O ports of the identified one of the plurality of node controller computing devices with the failure;
• select another one of the plurality of node controller computing devices without a failure to service any I/O operation of the identified one of the plurality of node controller computing devices with the failure based on a stored failover policy;
• direct any of the I/O operations to the selected another one of the plurality of node controller computing devices for servicing and then routing of any of the serviced I/O operations via a switch to the identified one of the plurality of node controller computing devices with the failure to execute any of the routed I/O operations with a storage device;
• identify when the identified one of the plurality of node controller computing devices with the failure is repaired;
• and
• remove the designation as ineligible and enabling one or more I/O ports of the identified one of the plurality of node controller computing devices identified with the repair.