Configuring transmission resources during storage area network migration

A computer program product for configuring transmission resources available to a source Storage Area Network (SAN) to comport with an estimated size and time of a SAN migration from the source SAN to a target SAN, wherein the computer program product comprises a non-transitory computer readable storage device having program instructions embodied therewith, the program instructions readable and executable by a computer to perform a method comprising:

• determining throughput of hardware devices operatively coupled to a target Storage Area Network (SAN) prior to a SAN migration from a source SAN to the target SAN;
• retrieving a soft state from a source SAN processor utilized by the source SAN, wherein the source SAN processor includes a processor core, wherein the soft state is stored in buffers within the processor core, and wherein each buffer within the processor core contains an intermediate execution output of a component within the processor core;
• retrieving information from a Network Interface Card (NIC) queue in the source SAN and a Local Area Network (LAN) queue in the source SAN, wherein the NIC queue in the source SAN contains queued data to send to the target SAN, and wherein the LAN queue in the source SAN includes configuration packets used in the SAN migration;
• determining an estimated time duration required to retrieve the soft state from a central processing unit (CPU) queue in the source SAN processor and the information from the NIC queue and the LAN queue in the source SAN, and to migrate the soft state of the processor core and the information from the NIC queue and the LAN queue in the source SAN from the source SAN to the target SAN;
• determining an estimated size and time of the SAN migration from the source SAN to the target SAN based on the estimated time duration required to retrieve the soft state from the CPU queue in the source SAN processor and the information from the NIC queue and the LAN queue in the source SAN, an estimated time to migrate the soft state of the processor core and the information from the NIC queue and the LAN queue in the source SAN from the source SAN to the target SAN, and the throughput of the hardware devices;
• and
• configuring transmission resources available to the source SAN to comport with the estimated size and time of the SAN migration from the source SAN to the target SAN.

A computer system comprising:

• one or more processors;
• one or more computer readable memories;
• one or more computer readable storage mediums;
• and
• program instructions stored on at least one of the one or more computer readable storage mediums for execution by at least one of the one or more processors via at least one of the one or more computer readable memories to perform a method comprising:
• determining throughput of hardware devices operatively coupled to a target Storage Area Network (SAN) prior to a SAN migration from a source SAN to the target SAN;
• retrieving a soft state from a source SAN processor utilized by the source SAN, wherein the source SAN processor includes a processor core, wherein the soft state is stored in buffers within the processor core, and wherein each buffer within the processor core contains an intermediate execution output of a component within the processor core;
• retrieving information from a Network Interface Card (NIC) queue in the source SAN and a Local Area Network (LAN) queue in the source SAN, wherein the NIC queue in the source SAN contains queued data to send to the target SAN, and wherein the LAN queue in the source SAN includes configuration packets used in the SAN migration;
• determining an estimated time duration required to retrieve the soft state from a central processing unit (CPU) queue in the source SAN processor and the information from the NIC queue and the LAN queue in the source SAN, and to migrate the soft state of the processor core and the information from the NIC queue and the LAN queue in the source SAN from the source SAN to the target SAN;
• determining an estimated size and time of the SAN migration from the source SAN to the target SAN based on the estimated time duration required to retrieve the soft state from the CPU queue in the source SAN processor and the information from the NIC queue and the LAN queue in the source SAN, an estimated time to migrate the soft state of the processor core and the information from the NIC queue and the LAN queue in the source SAN from the source SAN to the target SAN, and the throughput of the hardware devices;
• and
• configuring transmission resources available to the source SAN to comport with the estimated size and time of the SAN migration from the source SAN to the target SAN.