A storage network engineer is upgrading a Cisco MDS Director with dual supervisor modules. The install command is executed on the standby supervisor module but fails. Which action would have…

Question

Options

• AAll FCoE interfaces configured on the MDS must be shut down before starting the upgrade.
• BThe upgrade must be done on the active supervisor module only.
• CCisco Fabric Services must be disabled before starting the upgrade.
• DFabric Controller Service must be stopped before starting the upgrade.

• A
  8% (2)
• B
  76% (19)
• C
  4% (1)
• D
  12% (3)

Explanation

On Cisco MDS Directors with dual supervisor modules, software upgrades must always be initiated from the active supervisor because it controls the upgrade orchestration, manages the stateful switchover, and coordinates the process for both modules - running the install command on the standby supervisor is simply not a supported procedure and will fail immediately.

Why the distractors are wrong:

• A is incorrect - shutting down FCoE interfaces is not a prerequisite for a supervisor upgrade on the MDS platform.
• C is incorrect - while Cisco Fabric Services (CFS) configuration matters in some scenarios, disabling it is not required before an upgrade.
• D is incorrect - stopping the Fabric Controller Service is not a documented prerequisite step for an MDS upgrade procedure.

Memory tip: Think "Active = Authority." The active supervisor has the authority and the upgrade engine. The standby just follows - it doesn't lead the upgrade. If you're ever in doubt on a dual-supervisor question, ask yourself who's in charge: always the active module.

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