DS-C9148T-24PETK9 – 24 Active (48 Max) Ports – 32G Fibre Channel SAN Switch
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DS-C9148T-24PETK9 Description
Cisco DS-C9148T-24PETK9 is a 32-Gbps Fibre Channel SAN switch in the Cisco MDS 9148T family, delivering 48 physical FC ports with 24 ports active by license and seamless expansion to 48 through port-on-demand. The 9148T platform provides line-rate 32G performance with autosensing 4/8/16/32-Gbps FC, native NVMe/FC support, hardware-assisted SAN Analytics, and enterprise-grade resiliency with redundant hot-swappable power and fans. Built on Cisco NX-OS and managed through Cisco Nexus Dashboard Fabric Controller (formerly DCNM), the 9148T series simplifies day-2 operations with intelligent telemetry, streaming analytics, and consistent policy across modern flash arrays, mission-critical databases, and virtualized workloads.
Key Features
High-Density Fibre Channel Switching
Supports 24 ports of 4/8/16/32-Gbps autosensing Fibre Channel, enabling scalable connectivity for dense storage environments and SAN expansion.
Low Latency and Consistent Performance
Non-blocking architecture with predictable throughput ensures stable performance for mission-critical workloads such as databases and virtualization clusters.
Integrated SAN Analytics and Diagnostics
Built-in tools like Inter-Switch Link diagnostics, protocol decoding, and slow-drain detection simplify troubleshooting and enhance operational efficiency.
Enterprise-Grade Reliability and Redundancy
Hot-swappable dual power supplies and fans ensure high availability, supporting 24/7 data center operations with minimal downtime.
Advanced Virtualization Support
Features Virtual SANs (VSANs), Inter-VSAN Routing (IVR), and Virtual Machine Identifier (VMID) for secure, isolated, and application-aware SAN environments.
Future-Proof NVMe/FC Readiness
Designed to support next-generation NVMe over Fibre Channel workloads, enabling seamless transition to high-performance flash storage architectures.
Application Scenarios
Ideal for large enterprises consolidating multiple applications and storage platforms into a unified SAN, ensuring high performance and security across mission-critical workloads.
Supports hyperscale server deployments with dense virtualization, providing predictable bandwidth and latency for thousands of virtual machines and applications.
Suited for industries requiring low-latency and highly secure storage networking—such as real-time trading platforms, patient record systems, and scientific computing clusters.
Front View
|
1 |
Serial console port |
7 |
Activity status LED |
|
2 |
System status LED |
8 |
Ethernet management ports (2) |
|
3 |
Power status LED |
9 |
Fixed FC ports |
|
4 |
Fan status LED |
10 |
FC port status LEDs (48) |
|
5 |
USB port |
11 |
Airflow grill |
|
6 |
Link status LED |
Rear View
|
1 |
Power supply failure status LED |
6 |
Power supply status LED |
|
2 |
Power supply unit fan |
7 |
Power supply units (2 units) |
|
3 |
Power supply unit handle |
8 |
Chassis fan modules (4 units) |
|
4 |
Unswitched power receptacle |
9 |
Chassis fan module release latches (8) |
|
5 |
Power supply unit latch release |
|
1 |
Power supply unit slot 1 |
4 |
Chassis fan module slot 3 |
|
2 |
Chassis fan module slot 1 |
5 |
Chassis fan module slot 4 |
|
3 |
Chassis fan module slot 2 |
6 |
Power supply unit slot 2 |
Model Selection Guide – DS-C9148T-24PETK9
|
Common requirement scenario |
Suitable? Recommendation |
|---|---|
|
Build a new 32G FC access/edge for all-flash arrays |
Suitable. 48 physical FC ports with 24 active (license to expand) deliver predictable low-latency, line-rate performance for AFA and high-IOPS hosts. |
|
Start with 24 ports and scale later |
Highly suitable. Base license enables 24 ports; expand in steps via POD licenses to 32/40/48 without hardware changes. |
|
Plan to adopt NVMe/FC |
Suitable. NVMe/FC-ready design allows seamless transition while coexisting with SCSI workloads. |
|
Need built-in visibility & telemetry |
Suitable. Hardware-assisted SAN analytics, slow-drain detection, and streaming telemetry simplify troubleshooting and capacity planning. |
|
Dense virtualization and per-VM visibility |
Suitable. VMID awareness plus analytics helps pinpoint per-flow or per-VM performance issues. |
|
Layered design with NPIV/NPV to simplify ops |
Suitable. Use as NPIV core with NPV edge to grow host ports over time with minimal management overhead; Auto/Smart Zoning reduces manual work. |
|
Strict HA requirements (power/fans/links) |
Suitable. Redundant hot-swappable PSUs/fans; port-channels across port groups improve fabric resiliency for 24×7 environments. |
|
Data-center airflow policies (hot/cold aisle) |
Suitable. Order intake (red) or exhaust (blue) airflow options to match rack cooling direction. |
|
Reuse existing 8G/16G optics first |
Suitable. 32G ports are autosensing; you can deploy with existing 8G/16G optics/HBAs and upgrade later to 32G. |
|
Require link robustness (FEC, credit recovery) |
Suitable. Supports FEC and buffer-to-buffer credit recovery mechanisms to mitigate errors and credit loss. |
|
Need stronger security / fabric isolation |
Suitable. VSANs, role-based access, FC-SP (DH-CHAP), and optional link encryption help meet stringent security requirements. |
|
Unified management & automation |
Suitable. NX-OS CLI, REST/NX-API, Python/Ansible; managed via Cisco NDFC/DCNM for single-pane operations. |
|
Limited to 1RU, careful with power draw |
Suitable. Compact 1RU chassis; dual PSU options fit common power grids and rack densities. |
|
Need more than 48 FC ports or very long-distance links |
Not ideal. Consider higher-port models (e.g., 96-port MDS 9396T/9396V) or director-class for large scale/long-haul B2B credit needs. |
Product Comparison
|
Parameter |
DS-C9148T-12PK9 |
DS-C9148T-24PETK9 |
DS-C9148T-48PK9 |
|---|---|---|---|
|
Product family |
MDS 9148T |
MDS 9148T |
MDS 9148T |
|
Physical FC ports |
48 |
48 |
48 |
|
Licensed ports (base) |
12 |
24 |
48 |
|
Port expansion |
+12/+24 up to 48 |
+12/+24 up to 48 |
N/A (max) |
|
Port speed |
4/8/16/32-Gbps FC |
4/8/16/32-Gbps FC |
4/8/16/32-Gbps FC |
|
Line-rate on all ports |
Yes (licensed) |
Yes (licensed) |
Yes |
|
NVMe/FC support |
Yes |
Yes |
Yes |
|
SAN Analytics |
Hardware-assisted |
Hardware-assisted |
Hardware-assisted |
|
Redundant PSUs/Fans |
Yes |
Yes |
Yes |
|
Form factor |
1RU |
1RU |
1RU |
|
System bandwidth |
Up to 1.536 Tbps |
Up to 1.536 Tbps |
Up to 1.536 Tbps |
|
Management |
NX-OS, NDFC/DCNM |
NX-OS, NDFC/DCNM |
NX-OS, NDFC/DCNM |
|
Typical use |
Small/edge SANs |
Mid-size/core edge |
Full 48-port density |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product model | DS-C9148T-24PETK9 (Cisco MDS 9148T family) | Form factor | 1RU fixed-configuration FC switch |
| Physical FC ports | 48 x Fibre Channel SFP/SFP28 | Licensed ports (base) | 24 active; expand via Port-On-Demand |
| Port speed | Auto-sensing 4/8/16/32-Gbps FC | Non-blocking | Line-rate on licensed ports |
| NVMe/FC | NVMe over FC ready | FCP support | Yes (SCSI over FC) |
| Virtualization | VSANs, Smart Zoning, IVR (license) | QoS | Fabric-wide QoS, zone-based QoS |
| Analytics & telemetry | Hardware-assisted SAN Analytics; model-driven telemetry | Diagnostics | ISL/HBA diagnostics, slow-drain detection, SPAN/RSPAN |
| Management | Cisco NX-OS CLI/SSH, SNMP, REST/NX-API | Controller | Cisco Nexus Dashboard Fabric Controller (DCNM/NDFC) |
| High availability | Redundant, hot-swappable PSUs and fans | Port-channel | Up to 16 links per PC for ISL resiliency |
| Airflow options | Port-side intake (red) or port-side exhaust (blue) | Fan modules | Hot-swappable; minimum required for normal operation |
| Power supplies | 2 x hot-swappable AC PSUs; 1 required, 2 for redundancy | Input | AC (HVAC/HVDC options by PSU model) |
| Security | RBAC, TACACS+/RADIUS/LDAP/AD, Secure Boot | FC-SP | DH-CHAP, link-level security; traffic encryption (license/feature) |
| Automation | NX-API/REST, Python/Ansible; POAP zero-touch | Call Home | Integrated |
| Front panel I/O | 48 x FC ports; USB; serial console | Management ports | Ethernet mgmt port(s) for OOB access |
| LEDs | System, fan, PSU, port/link/activity status | Latency | Cut-through switching; low constant latency |
| Use cases | All-flash arrays, DB/ERP, virtualization clusters, backup | Interoperability | MDS 9000 family; per Cisco interoperability matrix |
| Licensing | Base + Port-On-Demand; Enterprise/Analytics packages | Software | Cisco NX-OS (MDS release train) |
| Operating temp/humidity | Per Cisco datasheet (fill from your project sheet) | Power/thermal | Per PSU/datasheet (fill exact W/BTU/h) |
| Dimensions/weight | Per datasheet（1RU; exact mm/kg待填） | Regulatory | Safety/EMC/ROHS as listed by Cisco |
| Accessories | Rail kit, power cords (region), transceivers ordered separately | Transceivers | Cisco 32G/16G/8G FC SFP/SFP28 per compatibility |
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Customer Reviews
Questions & Answers
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Why select DS-C9148T-24PETK9 for a starter 32G SAN fabric?
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How many ports are active on DS-C9148T-24PETK9?
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How is the DS-C9148T-24PETK9 suffix decoded?
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Does DS-C9148T-24PETK9 support 32G Fibre Channel?
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Why choose DS-C9148T-24PETK9 instead of DS-C9148T-24PITK9?
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Can DS-C9148T-24PETK9 run FC-NVMe workloads?
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How does DS-C9148T-24PETK9 grow after the first 24 ports?
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Is DS-C9148T-24PETK9 an Ethernet switch?
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