NC55-MPA-1TH2H-S= Modular Port Adapter: Techn
Hardware Overview and Functional Role The NC55-MP...
Module Overview and Core Functionality
The CBL-SAS24-245M6= is a Cisco-certified Serial Attached SCSI (SAS) cable designed for high-density storage environments requiring 24-lane SAS connectivity over extended distances. With a 245-meter single-mode fiber (SMF) reach, it enables reliable data transfer between Cisco UCS storage systems and distributed racks, ideal for hyperscale or enterprise storage networks.
Key Technical Specifications
- Cable Type: OS2 single-mode fiber (1310nm/1550nm wavelengths).
- Length: 245 meters (optimized for cross-data center or campus links).
- Connectors: 24x SAS-4 SFF-8644 HD Mini Multilane connectors.
- Data Rate: Supports SAS-3 (12 Gbps) and SAS-4 (24 Gbps) protocols.
- Compatibility: Cisco UCS 6400/6500 Fabric Interconnects and UCS B-Series blade servers.
Primary Use Cases
- Hyperscale Storage Clusters: Connects distributed storage nodes with low-latency, high-throughput SAS links.
- Disaster Recovery Architectures: Facilitates synchronous replication between geographically separated data centers.
- AI/ML Workloads: Ensures rapid data access for GPU-driven analytics pipelines.
Critical Compatibility Considerations
- Switch Requirements: Validate compatibility with Cisco UCS 6454 Fabric Interconnects running firmware 4.2(3)+.
- Transceiver Pairing: Use Cisco-certified SAS SFP28 modules (e.g., DS-SFP28-SAS4-24G) for end-to-end signal integrity.
- Firmware Updates: Ensure UCS Manager is updated to avoid SAS protocol mismatches.
User Concerns: Addressing Key Questions
Q: Can this cable support mixed SAS and NVMe-oF traffic?
A: No—the CBL-SAS24-245M6= is dedicated to SAS protocols. For NVMe-oF, use Fibre Channel or Ethernet cables.
Q: Is the 245-meter length sufficient for metro-scale deployments?
A: Yes, but for distances beyond 500 meters, consider SAS extenders or DWDM solutions.
Q: Does it require specialized grounding for EMI protection?
A: No—SMF’s inherent immunity to electromagnetic interference eliminates grounding needs.
Why Authenticity Matters: Sourcing from itmall.sale
Third-party SAS cables often fail to meet Cisco’s signal integrity standards, leading to CRC errors and degraded throughput. For guaranteed performance, purchase the CBL-SAS24-245M6= from [“CBL-SAS24-245M6=” link to (https://itmall.sale/product-category/cisco/), which provides Cisco-validated cables with full warranty coverage.
Performance Comparison: Cisco vs. Generic SAS Cables
| Feature | CBL-SAS24-245M6= | Uncertified SAS Cable |
|---|---|---|
| Signal Integrity at 24G | Cisco-tested | Unverified (risk of retransmits) |
| Firmware Compatibility | Guaranteed | Partial/Unstable |
| Bend Radius Tolerance | 10mm | 15mm (higher loss risk) |
Engineer’s Insight: The Cost of Cutting Corners
In storage networks, even minor signal degradation can bottleneck entire clusters. While generic SAS cables might seem economical, their unreliability in high-throughput scenarios often leads to unplanned downtime and troubleshooting costs. For enterprises scaling mission-critical storage—especially in AI/ML or real-time analytics—the CBL-SAS24-245M6= isn’t just a cable; it’s a foundational component of operational resilience.