To provide increased storage availability, the system administrator purchased a storage array with two controllers. Which of the following is a reason a server would lose its storage when only one of

Even with two controllers in a storage array, a server requires proper multipathing software (e.g., MPIO) to manage the multiple paths to the storage. If multipathing is not configured correctly, the server may only use a single path through one controller; if that controller fails, the server loses access to storage even though the other controller is operational.

Hard zoning affects which devices can communicate over the Fibre Channel fabric, but it does not inherently prevent a server from accessing storage if one controller fails, assuming zoning allows paths to both controllers.

While a non-redundant switch fabric could cause a loss of storage if a switch fails, the question specifically states 'only one of the storage controllers fails,' implying the fabric might still be operational.

Improper termination of SCSI disks is relevant to direct-attached SCSI arrays, not typically for storage arrays with Fibre Channel or iSCSI connectivity where dual controllers are common, and it wouldn't cause a loss of storage due to controller failure in a dual-controller setup.