Resetting fibre channel devices for failover in high availability backup systems
AssigneeEMC IP Holding Company LLC
InventorsColin Zou, Cory Gu, Oliver Yang, Victor Li
Life of this patent
Estimating the term…
Abstract
Embodiments for systems and methods of resetting network devices for failover operation, by receiving an operating system panic function call, disabling error reporting for all device ports of a device to be reset to prevent primary interrupts to a disk dump operation, performing a function level reset of the all the device ports to be reset, and performing the reset operation on the device in a single thread context to prevent secondary interrupts to the disk dump process.
Claims16
A method of resetting network devices for failover operation, comprising:
- receiving an operating system panic function call;
- disabling error reporting for all device ports of a device to be reset;
- performing a function level reset of all device ports to be reset;
- and
- performing a reset operation on the device in a single thread context, wherein the failover operation switches network ports from a first node to a second node in a network, and wherein the network comprises a high availability Fibre Channel (FC) system implementing SCSI ports, and includes a server computer executing a data domain deduplication operating system, and further wherein the network comprises a storage area network, and wherein first and second SCSI ports each comprise one of a host bus adapter or a storage device port.
A system for resetting network devices for failover operation, comprising:
- a first interface receiving an operating system panic function call;
- a hardware manager component disabling error reporting for all device ports of a device to be reset;
- a reset module coupled to the manager component and performing a function level reset of all device ports to be reset, and performing the reset in a single thread context to allow the failover operation to switch network ports from a first node to a second node in a network, wherein the network comprises a high availability Fibre Channel (FC) system implementing the SCSI ports, and includes a server computer executing a data domain deduplication operating system, and further wherein the network comprises a storage area network, and wherein first and second SCSI ports each comprise one of a host bus adapter or a storage device port.
A computer program product comprising a non-transitory computer usable medium having machine readable code embodied therein for resetting network devices for failover operation, by:
- receiving an operating system panic function call;
- disabling error reporting for all device ports of a device to be reset;
- performing a function level reset of all device ports to be reset;
- and
- performing a reset operation on the device in a single thread context, wherein the failover operation switches network ports from a first node to a second node in a network, and wherein the network comprises a high availability Fibre Channel (FC) system implementing the SCSI ports, and includes a server computer executing a data domain deduplication operating system, and further wherein the network comprises a storage area network, and wherein first and second SCSI ports each comprise one of a host bus adapter or a storage device port.
Dependencies are inferred from the claim text.