What should a technician do first if they cannot see newly assigned storage on a server?

When a technician cannot see newly assigned storage on a server, the first step they should take is to perform a rescan of the disk. This action is crucial because the operating system or the server's disk management tools may not automatically recognize or update the status of newly added storage.

Performing a rescan prompts the system to re-check the connected storage devices. This allows the server to identify and integrate the newly added storage into its management framework. Without this step, the operating system might not reflect changes made in hardware and thus would not show the new storage.

While installing storage device drivers, assigning a drive letter, or formatting the new storage are important follow-up tasks, they are contingent upon the operating system recognizing the new storage in the first place. For example, if the storage is not recognized, installing drivers would not be useful, and assigning a drive letter or formatting would also not be applicable until the storage is detected by the system. Therefore, initiating a rescan is the most logical and effective first step in troubleshooting the issue.