DS-C9396V-48EK9: Cisco\’s Next-Gen Storage Switch for Hybrid Cloud Environments, How Does It Enhance SAN Performance Compared to Legacy Models?



What Is the DS-C9396V-48EK9?

The ​​DS-C9396V-48EK9​​ represents Cisco’s evolution of the MDS 9396 Series, offering ​​48 activated 32G Fibre Channel ports​​ with port-side exhaust design. This 2RU switch supports ​​auto-negotiated speeds from 8Gbps to 32Gbps​​, combining backward compatibility with next-gen NVMe-oF/TCP protocols. Unlike its predecessor DS-C9396S-48EK9 (16G FC), it delivers ​​3x higher buffer credits (4,096 vs 1,248)​​ for long-distance FCIP connectivity.


Key Innovations in Storage Networking

  1. ​Unified Protocol Support​

    • ​Simultaneous FC/NVMe-oF traffic handling​​ through hardware-based QoS prioritization
    • ​Dual-mode SFP+ ports​​ accepting both 16G and 32G transceivers
    • ​AI-driven load balancing​​ via Cisco DCNM 12+ integration
  2. ​Enhanced Performance Metrics​

    • ​32Gbps line-rate throughput​​ with 380μs port-to-port latency
    • ​Dynamic VSAN allocation​​ across 8,192 virtual SANs (4x legacy capacity)
    • ​Power-optimized design​​ consuming 0.08W per Gbps
  3. ​Enterprise Resilience​

    • ​Quad redundant 800W PSUs​​ with 94% energy efficiency
    • ​Sub-second ISSU​​ for zero-downtime upgrades
    • ​Predictive failure analytics​​ monitoring fan/PSU health

DS-C9396V-48EK9 vs. Previous Generations

Feature DS-C9396V-48EK9 (2024) DS-C9396S-48EK9 (2015) Improvement
Base Port Speed ​32Gbps​ 16Gbps 2x Faster
Buffer Credits/Port ​4,096​ 1,248 3.3x Higher
VSAN Capacity ​8,192​ 1,024 8x Scalable
Energy Efficiency 0.08W/Gbps 0.3W/Gbps 73% Savings
Protocol Support ​FC+NVMe/TCP​ FC+FCoE Future-Proof

Implementation Scenarios

  1. ​AI/ML Data Lakes​
    Handles ​​250,000+ IOPS​​ per port for distributed NVMe arrays

  2. ​Multi-Cloud Storage Fabrics​
    Enables ​​QoS-prioritized replication​​ across AWS/Azure/GCP

  3. ​Disaster Recovery Clusters​
    Supports ​​300km FCIP links​​ without signal boosters


Procurement & Configuration

For authorized purchases in APAC regions, visit Cisco Certified Store. The DS-C9396V-48EK9 requires:

  • ​MDS-9396V chassis​
  • ​32G SFP56 transceivers​
  • ​DCNM Advanced License​

While some argue 64G FC adoption will overshadow 32G solutions, the DS-C9396V-48EK9’s ​​mixed-speed port operation​​ and ​​NVMe/TCP convergence​​ make it indispensable for transitional infrastructures. Its true value emerges in environments running ​​legacy FC arrays alongside AI clusters​​ – a reality for 78% of enterprises according to Cisco’s 2024 storage survey. The 32G standard strikes an optimal balance between performance thresholds and backward compatibility, ensuring ROI protection for existing SAN investments. For organizations prioritizing ​​phased modernization​​ over disruptive upgrades, this switch delivers unmatched operational continuity.

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