Question

Difficulty: MediumData Protection and Storage Security Architecture

Match each storage security technology on the left with its primary enterprise implementation role on the right.

  • Self-Encrypting Drive (SED)Performs transparent, hardware-based disk encryption directly at the drive controller level without host CPU overhead.
  • Hardware Security Module (HSM)Provides tamper-resistant, dedicated hardware storage for securing high-assurance root cryptographic key lifecycles.
  • Storage Area Network (SAN) LUN MaskingRestricts host access to specific logical storage volumes on a shared disk array based on host bus adapter (HBA) identifiers.
  • Endpoint Data Loss Prevention (DLP)Inspects data write operations in real time to prevent unencrypted sensitive information from leaving managed hosts to unapproved USB media.

Answer

Self-Encrypting Drive pairs with transparent hardware-based disk encryption at the drive controller level. Hardware Security Module pairs with tamper-resistant hardware storage for securing key lifecycles. SAN LUN Masking pairs with restricting host access to specific logical volumes based on HBA identifiers. Endpoint DLP pairs with inspecting data write operations to prevent unencrypted sensitive data transfers to removable media.
Each technology fulfills a distinct role within enterprise storage architecture: SEDs provide transparent drive controller-level hardware encryption; HSMs secure key storage in hardened modules; SAN LUN masking restricts volume access by host identifier; and endpoint DLP enforces data content protection policies on endpoint write actions.

Step-by-Step Solution

1
Analyze storage encryption controls
Identify that Self-Encrypting Drives execute transparent encryption at the drive controller level, avoiding host CPU performance hits.
SEDs rely on dedicated hardware inside the drive casing rather than host OS crypto modules.
2
Evaluate key management architecture
Match Hardware Security Module to centralized, tamper-evident master key storage.
HSMs protect master keys and perform cryptoprocessing in secure physical boundaries.
3
Analyze block storage isolation mechanisms
Associate LUN Masking with restricting access to specific SAN storage volumes by checking host bus adapter WWNs/identifiers.
LUN masking acts as access control on storage arrays to prevent unauthorized servers from mounting raw storage volumes.
4
Analyze data exfiltration prevention tools
Link Endpoint Data Loss Prevention to real-time content inspection blocking writes to external storage devices.
DLP evaluates file content against classification rules before allowing write operations to endpoint peripherals.

Key Concept

Data Protection and Storage Security Architecture
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