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DS-C9148T-48PETK9 – 32 Gbps – 48 Port – Fibre Channel Switch
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DS-C9148T-48PETK9 Description
Cisco DS-C9148T-48PETK9 is the 48-port, port-side exhaust airflow SKU of the Cisco MDS 9148T 32-Gbps Fibre Channel switch. All 48 FC ports are active at delivery and operate at line-rate with autosensing 4/8/16/32Gbps speeds, delivering predictable low latency for all-flash arrays, databases, and dense virtualization clusters. The platform is NVMe/FC-ready and supports VSANs, Inter-VSAN Routing, Smart/Auto Zoning, and fabric-wide QoS. Built-in, hardware-assisted SAN Analytics with model-driven telemetry accelerates troubleshooting and capacity planning. With redundant hot-swappable power supplies and fans plus flexible port-channeling for ISL resiliency, DS-C9148T-48PETK9 fits 1RU access/edge SAN designs where port-side exhaust is required by hot/cold-aisle policies, while preserving automation via Cisco NDFC/DCNM, REST/NX-API, Python, and Ansible.
Key Features
Scalable 32G Fibre Channel edge for high-IOPS workloads
48 active ports at line-rate and low latency serve all-flash arrays, OLTP databases, and backup windows that must finish on time.
Future-ready NVMe/FC migration
Run SCSI/FCP today and transition to NVMe/FC on the same fabric, keeping policies, zoning, and workflows consistent.
Built-in visibility and observability
Hardware-assisted SAN Analytics, slow-drain detection, ISL/HBA diagnostics, and streaming telemetry speed root-cause analysis and capacity planning.
Enterprise-class resiliency
Hot-swappable dual PSUs and fans, plus ISL port-channels and consistent forwarding, support 24×7 operations and change windows.
Segmentation and multi-tenancy
VSANs, Smart/Auto Zoning, and IVR (license) enable secure tenant/application isolation with granular QoS and simplified change control.
Data-center friendly airflow and footprint
Port-side exhaust airflow aligns with hot/cold-aisle designs; compact 1RU chassis fits standard 19-inch racks with room for cable management.
Applications Scenarios
Enterprise data centers and virtualization clusters
Predictable throughput for large VM farms, VDI, and microservices; per-flow insights help tune performance and SLAs.
All-flash storage and mission-critical databases
Non-blocking 32G FC for OLTP/ERP, analytics, and latency-sensitive workloads; simplifies meeting backup and replication windows.
Regulated and research environments
Finance/healthcare benefit from VSAN isolation, RBAC, and FC-SP; R&D/HPC gains deterministic latency and telemetry-driven operations.
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-48PETK9
|
Common requirement scenario |
Suitable? Recommendation |
|---|---|
|
Build a new 32G FC access/edge for all-flash arrays |
Suitable. 48 physical ports with 24 active deliver predictable, low-latency line-rate for AFA and high-IOPS hosts; expand to 48 via POD as needed. |
|
Start with 24 ports and scale later without downtime |
Highly suitable. Use port-on-demand licensing to scale in steps to 48; avoid forklift upgrades and align spend with growth. |
|
Plan to adopt NVMe/FC alongside existing SCSI/FCP |
Suitable. NVMe/FC-ready; coexistence on the same links preserves investments and policies. |
|
Need built-in visibility, telemetry, and faster troubleshooting |
Suitable. Hardware-assisted SAN Analytics, slow-drain detection, and model-driven telemetry reduce MTTR and support capacity planning. |
|
Dense virtualization and per-VM/per-flow insight |
Suitable. VM-aware visibility (with capable HBAs) plus analytics helps pinpoint noisy neighbors and bottlenecks. |
|
Layered design using NPIV/NPV to simplify operations |
Suitable. Use as NPIV core with NPV edge to scale host ports cost-effectively; Smart/Auto Zoning reduces manual configuration. |
|
Strict HA requirements (redundant power, cooling, links) |
Suitable. Dual hot-swap PSUs/fans and ISL port-channels improve fabric availability for 24×7 workloads. |
|
Data-center airflow policy requires port-side intake |
Ideal. This SKU is the intake variant; align airflow with hot/cold-aisle layouts and adjacent equipment. |
|
Reuse existing 8G/16G optics/HBAs initially |
Suitable. Autosensing 4/8/16/32-Gbps ports let you deploy today and upgrade optics/HBAs to 32G later. |
|
Require robust links (FEC, buffer-to-buffer credit recovery) |
Suitable. Features that mitigate bit errors and credit loss help maintain throughput under suboptimal link conditions. |
|
Security and isolation for regulated environments |
Suitable. VSANs, RBAC, TACACS+/RADIUS/LDAP/AD, FC-SP (DH-CHAP), and optional link encryption support compliance goals. |
|
Unified management and automation at scale |
Suitable. NX-OS CLI/SSH, REST/NX-API, Python/Ansible; managed via Cisco NDFC/DCNM for single-pane ops. |
|
Limited to 1RU with careful power/cooling planning |
Suitable. Compact 1RU chassis with redundant cooling and PSU options fits common rack/power designs. |
|
Need more than 48 FC ports or very long-distance links |
Not ideal. Consider higher-port fixed switches (e.g., 96-port models) or director-class platforms for large scale or long-haul/B2B credit needs. |
Product Comparison
|
Parameter |
DS-C9148T-12PK9 |
DS-C9148T-48PETK9 | |
|---|---|---|---|
|
Physical FC ports |
48 |
48 |
48 |
|
Base licensed ports |
12 |
24 |
48 |
|
Port expansion |
+8 to max 48 |
+8 to max 48 |
N/A (max) |
|
Port speeds |
4/8/16/32Gbps FC |
4/8/16/32Gbps FC |
4/8/16/32Gbps FC |
|
Line-rate on licensed ports |
Yes |
Yes |
Yes |
|
System bandwidth |
Up to 1.536Tbps |
Up to 1.536Tbps |
Up to 1.536Tbps |
|
NVMe/FC support |
Yes |
Yes |
Yes |
|
SAN Analytics/telemetry |
Hardware-assisted |
Hardware-assisted |
Hardware-assisted |
|
Redundant PSUs/fans |
Yes |
Yes |
Yes |
|
Airflow option |
Intake or exhaust SKUs |
Exhaust (this PET), intake available |
Exhaust (this PET) |
|
Form factor |
1RU |
1RU |
1RU |
|
Typical use |
Small/edge SAN starting low |
Mid-size edge with staged growth |
Full 48-port density day one |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product model | DS-C9148T-48PETK9 (MDS 9148T series) | Form factor | 1RU fixed FC switch |
| Physical FC ports | 48 x SFP+/SFP28 Fibre Channel | Licensed ports | 48 active (max) |
| Port speeds | Auto-sensing 4/8/16/32Gbps | Performance | Non-blocking, line-rate on all ports |
| Aggregate bandwidth | Up to 1.536Tbps | Latency | Low, cut-through switching |
| Expansion model | N/A (already max licensed) | Port-channel | ISL PortChannels for resiliency |
| Protocols | FCP, NVMe/FC | Fabric services | VSANs, IVR (license), Smart/Auto Zoning, QoS |
| Analytics/telemetry | Hardware-based SAN Analytics; model-driven telemetry | Diagnostics | ISL/HBA diagnostics, slow-drain detection, SPAN/RSPAN |
| Management | NX-OS CLI/SSH, SNMP, REST/NX-API | Controller | Cisco NDFC/DCNM |
| High availability | Hot-swappable dual PSUs and fans | Airflow | Port-side exhaust (blue) variant |
| Power | AC PSU options; 1 required, 2 for redundancy | Cooling | Redundant hot-swappable fan modules |
| Security | RBAC, TACACS+/RADIUS/LDAP/AD, Secure boot | FC-SP | DH-CHAP; optional link encryption |
| Automation | REST/NX-API, Python/Ansible; POAP | Call Home | Integrated |
| Front I/O | 48 x FC ports; USB; serial console | Management ports | Ethernet management for OOB |
| LEDs | System, fan, PSU, link/activity | Interoperability | MDS 9000 family per compatibility matrix |
| Dimensions/weight | 1RU; per datasheet | Environmental | Per datasheet (operating temp/humidity) |
| Power/thermal | Per PSU/datasheet | Certifications | Safety/EMC/RoHS per Cisco |
| Transceivers | Cisco 32G/16G/8G FC optics supported | Accessories | Rail kit, regional power cords (optics ordered separately) |
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Quality Certifications
Customer Reviews
Questions & Answers
-
For DS-C9148T-48PETK9 in a branch datacenter, which enterprise features most reduce MTTR when storage teams report intermittent paths?
-
How should I structure VSANs and zoning to simplify audits without sacrificing isolation?
-
Is NVMe/FC onboarding different at the access layer versus the core?
-
What’s a recommended optics inventory at small sites with limited spares?
-
How can I prevent a single noisy backup job from overwhelming edge links?
-
Can I grow from 24 to 48 active ports without service windows?
-
What’s the best practice for upgrades?
-
How do I confirm a suspected optic fault versus fiber hygiene?
-
Any benefit to separating NVMe/FC into its own VSAN at the edge?
-
What documentation should accompany 48PETK9 rollout?
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You may fire when ready. Data transfer rates are exceptional.
Look at the size of that thing! Well, it’s actually 1U, but it’s powerful.
Full port activation license included. Perfect for our high density storage array.
Reliability is key for patient data. We trust MDS switches. Vendor was great.