LAN-Based Backup Job Steps in Huawei Storage
Short answer
CD In a LAN-based backup, the agent on the application server sends data to the backup media server, which then sends the data to the backup device.
Question
Key Takeaways
Distinguishes between the control plane (Backup Server commands) and data plane (Agent to Media Server to Device).
Identifies the correct steps in a LAN-based backup job involving the agent, media server, and backup device. The correct answers are C and D.
Common mistake: Choosing A because one might think the agent writes directly to storage, ignoring the role of the Media Server in managing the backup device.
Expert Analysis
LAN-based backup architecture relies on a client-server model where the Backup Server (or management server) orchestrates the job, but does not handle raw data traffic. The Backup Agent resides on the source application server and is responsible for reading and compressing/packing the data.
The correct sequence in a LAN backup scenario is:
- The Backup Server instructs the Agent to start the backup.
- The Agent sends data to the Backup Media Server (Option C). This is the critical data path over the LAN.
- The Backup Media Server sends data to the backup device (Option D), such as a tape library or disk target.
Why other options are incorrect:
- Option A is wrong because the agent does not send data directly to the backup device; it goes through the media server which manages storage resources.
- Option B is wrong because the Backup Server sends commands to the Agent to start the backup, not directly to the backup device (tape drive/disk) without going through the media server logic.
Exam Strategy
Always distinguish between the 'Control Plane' and 'Data Plane' in storage questions. The Backup Server controls; the Media Server moves data; the Agent reads source data. Never assume direct Agent-to-Device transfer unless specified as LAN-Free.
Frequently Asked Questions
What is the role of the Backup Media Server?
Does the Backup Server handle data traffic?
Community Votes
50% of anonymous learners picked answer C. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 1 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 1
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ThaeGyii 👍 1C. Agent on application server sends data to backup media server: The backup server initiates the job, telling the Backup Agent installed on the application server to read the data. The agent then packs the data and streams it across the local area network (LAN) to the designated Backup Media Server.D. Backup media server sends data to the backup device: The Media Server acts as the data traffic manager. It receives the incoming stream from the agent, coordinates data indexing or deduplication processing if necessary, and writes the data blocks directly into the destination target device (such as a disk array or physical tape library).
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