After connecting a server to a SAN, the server administrator cannot see any new disks presented in disk management. There are no error lights on the front of the server. Which of the following should

Rebooting the SAN is a drastic measure that could impact other connected servers and should only be considered after verifying local server and HBA connectivity.

While checking SAN error lights is a valid step, the problem could be specific to the server's connection rather than the SAN's overall health, and checking the HBA on the server is a more targeted first step given no server error lights.

The Host Bus Adapter (HBA) is the server component that connects to the SAN fabric. Checking the HBA's link and activity lights (LEDs) is the most immediate and direct way to verify if the physical connection to the SAN is established and if data is flowing, which is fundamental for the server to detect and present SAN-LUNs in Disk Management. Without a properly functioning HBA link, the server cannot communicate with the SAN.

Rebooting the server might refresh device detection but is premature without first confirming the physical and logical connection status of the HBA.