Cisco MDS 9148T - Switch - managed - 24 x 32Gb Fibre Channel SFP+ - rack-mountable - remanufactured
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High performance
MDS 9148T architecture, with centralized nonblocking arbitration, provides consistent 32-Gbps low-latency performance across all traffic conditions for every Fiber Channel port on the switch.
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Capital Expenditures (CapEx) savings
The 32-Gbps ports allow users to deploy them with existing 16- or 8-Gbps transceivers provide investment protection with an option to upgrade to 32-Gbps transceivers and adapters whenever needed.
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High availability
MDS 9148T switches continue to provide the same outstanding availability and reliability as the previous-generation Cisco MDS 9000 Family switches by providing redundancy on all major components such as the power supply and fan. Dual power supplies also facilitate redundant power grids. In addition, port-channel link members can be striped across the three 16-port port groups, thus providing additional high availability.
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Reliability
As part of the standard 32-Gbps Fiber Channel specification, Cisco provides FEC between switch ports and HBA ports on all 32-Gbps Fiber Channel fixed switches. This feature helps ensure any error introduced in flight gets corrected before it reaches the device side. In addition, Cisco extends Buffer-to-Buffer State Change Notification (BBSCN) and buffer-to-buffer credit recovery, which is supported on all Cisco switches between ISL ports, to the fabric ports attached to any end device. Over time, the corruption of receiver-ready messages, known as R RDY primitives, can lead to a loss of credits, which can eventually cause a link to stop transmitting in one direction. Buffer-to-buffer credit recovery provides for two attached ports to detect and correct this situation.
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Growth in small increments
The MDS 9148T Fiber Channel switch provides an option to deploy as few as twenty-four 32-Gbps Fiber Channel ports in the entry-level variant, which can grow in increments of 8 ports to up to 48 ports. This setup allows four possible configurations of 24, 32, 40, and 48 ports.
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Next-generation ASIC
The MDS 9148T Fiber Channel switch is powered by the same high-performance 32-Gbps Cisco ASIC that powers the Cisco MDS 32-Gbps Fiber Channel product portfolio.
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Higher scalability
Increased fabric scalability provides more flexibility for a variety of SAN architectures.
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Telemetry
Fiber Channel and Small Computer System Interface (SCSI) headers can be inspected without the need for any external taps or appliances. The resulting metrics can be analyzed on the switch and also exported using a dedicated 1- or 10-Gbps Small Form-Factor Pluggable Plus (SFP+) port for telemetry and analytics purposes1.
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Intelligent services
Auto-zone, Smart Zoning, slow-drain detection and isolation, Virtual SAN (VSAN) and Inter-VSAN routing (IVR), and fabric-wide Quality of Service (QoS) enable migration from SAN islands to enterprise-wide storage networks. Traffic encryption is optionally available to meet stringent security requirements.
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Sophisticated diagnostics
The MDS 9148T provides intelligent diagnostics tools such as ISL diagnostics, HBA diagnostics, read diagnostic parameters, Switched Port Analyzer (SPAN), Integrated Cisco Call Home capability, and an Online Health Management System for greater reliability, faster problem resolution, and reduced service costs.
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Virtual-machine awareness
The MDS 9148T provides visibility into all virtual machines that are accessing the storage LUNs in the fabric. This feature is available through HBAs capable of priority tagging the Virtual Machine Identifier (VMID) on every Fiber Channel frame. Virtual-machine awareness can be extended to intelligent fabric services such as analytics1 to visualize performance of every flow originating from each virtual machine in the fabric.
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Programmable fabric
The MDS 9148T provides powerful Representational State Transfer (REST) and Cisco NX-API capabilities to enable flexible and rapid programming of utilities for the SAN.
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Single-pane management
You can provision, manage, monitor, and troubleshoot the MDS 9148T using Cisco Data Center Network Manager (DCNM), which currently manages the entire suite of Cisco data center products.
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Secure-boot and anti-counterfeiting technology
The MDS 9148T uses onboard hardware that protects the entire system from malicious attacks by securing access to critical components such as the bootloader, system image loader, and Joint Test Action Group (JTAG) interface.
The next-generation Cisco MDS 9148T 32-Gbps 48-Port Fiber Channel Switch provides high-speed Fiber Channel connectivity for All-Flash arrays. This switch offers state-of-the-art analytics and telemetry capability built into its next-generation Application-Specific Integrated Circuit (ASIC) platform. This switch allows seamless transition to Fiber Channel Non-Volatile Memory Express (FC-NVMe) workloads whenever available without any hardware upgrade in the SAN. It empowers small, midsize, and large enterprises that are rapidly deploying cloud-scale applications using extremely dense virtualized servers, providing the benefits of greater bandwidth, scale, and consolidation. Some of the main benefits for a small-scale Storage Area Network (SAN) are automatic zoning, nonblocking forwarding, and smaller port groups of 16 ports. Benefits for a mid- to large-size SAN include higher scale for Fiber Channel control-plane functions, virtual SANs, fabric login (FLOGI), device alias and name server scale, 48 ports of 32-Gbps non-oversubscribed line-rate ports, bidirectional airflow, and a fixed-form FC-NVMe-ready SAN switch with enhanced Buffer-to-Buffer (B2B) credits connecting both storage and host ports and Fiber Channel link encryption. Large-scale SAN architectures built with SAN core directors can expand 32-Gbps connectivity to the server rack using these switches in either switch mode or Network Port Virtualization (NPV) mode. Additionally, the switch supports enhanced diagnostic features such as Inter-Switch Link (ISL) and Host-Bus-Adapter (HBA) diagnostics, read diagnostic parameter, link cable beacon, and advanced reliability features such as Forward Error Correction (FEC) with HBA ports.
- High performance
- Capital Expenditures (CapEx) savings
- High availability
- Reliability
- Growth in small increments
- Next-generation ASIC
- Higher scalability
- Telemetry
- Intelligent services
- Sophisticated diagnostics
- Virtual-machine awareness
- Programmable fabric
- Single-pane management
- Secure-boot and anti-counterfeiting technology
