The Lenovo Flex System™ FC5022 16Gb SAN Scalable Switch offerings are Gen 5 Fibre Channel (FC) embedded modules for Lenovo Flex System. With up to 48 ports that operate at 16 and 8 Gbps FC speeds, each module provides up to 28 internal ports to compute nodes through the Flex System midplane and up to 20 external SFP+ ports.
This product guide provides essential pre-sales information to understand the structure of the FC5022 switch offerings, their key features and specifications, components and options, and configuration guidelines.
This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about the FC5022 offerings and consider their use in IT solutions.
Changes in the October 29 update:
The FC5022 SAN switch modules deliver unmatched scalability and flexibility for Flex System users wanting to connect directly into 8 or 16 Gbps FC storage or to an upstream storage area network (SAN). The FC5022 can be configured in the Access Gateway mode using NPIV for simple upstream connectivity or in the Full Fabric more for more advance switching as a part of the larger Fibre Channel fabric.
The switch offers end-to-end 16 Gb with backwards compatibility to 8 Gb and 4 Gb to the SAN connectivity. Monitoring and management are simplified using end-to-end Brocade tools, such as Web Tools and the Brocade Network Advisor (BNA).
Figure 1 shows the switch module.
Figure 1. Lenovo Flex System FC5022 16 Gb SAN Scalable Switch
Only the FC5022 provides up to 48 FC ports in an embedded form factor which provides Flex System a unique differentiation in the market, including the following:
The part numbers to order the switch and optional upgrades are shown in Table 1.
The part numbers for the switches include the following items:
The part numbers for the Features on Demand upgrades include the following items:
The switch does not include a serial management cable, however, Flex System Management Serial Access Cable, part number 90Y9338, is supported and contains two cables, a mini-USB-to-RJ45 serial cable and a mini-USB-to-DB9 serial cable, either of which can be used to connect to the switch locally for configuration tasks and firmware updates.
The FC5022 12-port and 24-port ESB SAN switches come without SFP+ media, which must be ordered separately to provide outside connectivity. The FC5022 24-port SAN switch (part number 00Y3324) comes standard with two Brocade 16 Gb SFP+ transceivers. Additional SFP+ can be ordered, if required. Table 2 lists the supported SFP+ options.
* When using ELW SFPs over distances over 10 km, the Extended Fabric feature is required on a SAN switch to drive the maximum bandwidth over the extended links. The Extended Fabric feature is included in the FC5022 ESB switch module (part number 90Y9356). The ELW SFPs are not available for selection for the non-ESB FC5022 switch modules (part numbers 88Y6374 and 00Y3324).
Table 3 provides a feature comparison by model for Flex System FC5022 switches.
* With Fabric OS 7.2 and above, the Brocade Fabric Vision functionality is included with the 24-port 16 GB ESB SAN switch, but may not be displayed as an individual license key. The functionality may instead be displayed along with the Fabric Watch and Advanced Performance Monitoring license descriptions with the added verbiage "Fabric Vision Capable."
Table 4 provides compatibility information for the switch modules and Features on Demand upgrades for them.
* This feature is already included in the bundle.
With Brocade's Dynamic Ports on Demand (DPOD) feature, ports are licensed in one of two methods: as they come online or as selected by the administrator. With the 16 Gb SAN switch, the first 12 ports reporting (on a first-come, first-served basis) on boot-up are assigned licenses. These 12 ports can be any combination of external or internal Fibre Channel (FC) ports. After all port licenses have been assigned, you can manually move those licenses from one port to another. Because this is dynamic, no defined ports are reserved except ports 0 and 29. The 24-port 16 Gb SAN switches have the same behavior; the only difference is the number of ports, which is 24.
Table 5 shows the total number of port licenses on the switch after applying compatible port upgrades.
Note: A maximum of one upgrade of each type (one Upgrade 1 and one Upgrade 2) is supported per one switch module. Upgrade 1 and Upgrade 2 can be applied independently of each other.
* With the dual-port FC adapters installed in compute nodes, up to 34 ports (14 internal, 20 external) can be utilized. The remaining 14 internal ports require use of the 4-port FC adapters in the server's ITE.
The switches offer the following key benefits:
See Lenovo Press paper “Positioning Flex System 16 Gb Fibre Channel Fabric for Storage-Intensive Enterprise Workloads” for details:http://lenovopress.com/redp4921
The FC5022 16 Gb Switch supports multi-tenancy in cloud environments through VM-aware end-to-end visibility and monitoring, Quality of Service (QoS), and fabric-based advanced zoning features. The FC5022 enables secure long distance extensions to virtual private or hybrid clouds with dark fiber support, as well as in-flight encryption and data compression.
All models of the FC5022 16 Gb Switch can be deployed as an Access Gateway, which simplifies fabric topologies and heterogeneous fabric connectivity. Access Gateway mode utilizes N_Port ID Virtualization (NPIV) switch standards to present physical and virtual servers directly to the core of SAN fabrics. This makes it transparent to the SAN fabric, greatly reducing management of the network edge. The FC5022 Scalable Switch in Access Gateway mode can connect servers to NPIV-enabled SAN fabrics, including Brocade or Cisco SAN fabrics.
To help optimize technology investments, Lenovo offers a single point of serviceability backed by industry-renowned education, support, and training. In addition, the Lenovo 16/8 Gbps SAN Scalable Switch is in the ServerProven® program, ensuring compatibility among a variety of Lenovo and partner products.
The FC5022 16 Gb Switches have the following features and specifications:
Flex System FC5022 switches come standard with the following software features:
The 24-port ESB model (part number 90Y9356) is a fully enabled switch with a complete set of licensed features that maximizes performance, ensures availability, and simplifies management for the most demanding applications and expanding virtualization environments. The factory-installed licenses include:
The switch supports the following FC standards:
The switches are installed in switch bays in the rear of the Flex System chassis, as shown in Figure 2. Switches are normally installed in pairs since ports on the I/O adapter cards installed in the compute nodes are routed to two switch bays for redundancy and performance.
Figure 2. Location of the switch bays in the Flex System chassis
Table 6 shows compatibility information for the FC5022 and Flex System chassis.
Table 6. Flex System chassis compatibility
The connections between the 2-port adapters that are installed in the compute nodes and the switch bays in the chassis are shown in Figure 3. Figure 3 shows both half-wide servers, such as the x240 with two adapters, and full-wide servers, such as the x440 with four adapters.
Figure 3. Logical layout of the interconnects between the 2-port FC adapters and I/O modules
The connections between the 4-port FC adapters that are installed in the compute nodes and the switch bays in the chassis are shown in Figure 4.
Figure 4. Logical layout of the interconnects between the FC5054 4-port adapters and I/O modules
The Flex System FC5022 16Gb SAN Scalable Switches can be installed in bays 1, 2, 3, and 4 of the Flex System chassis. A supported adapter card must be installed in a corresponding slot of the compute node (slot A1 when switches are installed in bays 1 and 2 or slot A2 when switches are in bays 3 and 4).
With compute nodes that have an integrated dual-port 10 GbE network interface controller (NIC) these switches can only be installed in bays 3 and 4 because integrated NICs ports are routed to bays 1 and 2 with a specialized periscope connector and the FC adapter card cannot be installed in slot A1. When needed, however, the periscope connector can be replaced with an FC adapter card, in which case the integrated NIC will be disabled and FC switches can be used in bays 1 and 2.
Table 7 shows the connections between dual-port and 4-port FC adapters installed in the compute nodes other than x222 to the switch bays in the chassis with Flex System FC5022 16 Gb SAN Scalable Switches.
Table 7. Adapter to I/O bay correspondence
Table 8 shows the connections between 4-port adapters installed in the x222 compute nodes to the switch bays in the chassis with Flex System FC5022 16Gb SAN Scalable Switches.
Table 8. x222 adapter to I/O bay correspondence
With the x222, each node bay consumes four ports on the switch, therefore, additional port licenses might be needed depending on your configuration (see Table 1 for FoD port upgrades).
Table 9 lists the storage I/O adapters supported by the FC5022 16Gb SAN Scalable Switches. With 8 Gb FC adapters, internal ports on a switch operate at 8 Gb speeds.
Table 9. Storage adapters
The adapters are installed in slots in each compute node. Figure 5 shows the locations of the slots in the x240 Compute Node. The positions of the adapters in the other supported servers are similar.
Figure 5. Location of the I/O adapter slots in the Flex System x240 Compute Node
Figure 6 shows the front panel of the Lenovo Flex System FC5022 16Gb SAN Scalable Switches.
Figure 6. Front panel of the Lenovo Flex System FC5022 16Gb SAN Scalable Switches
The front panel contains the following components:
Table 10 lists the cables required for the switch.
Table 10. FC5022 cabling requirements
The FC5022 switches carry a 1-year, customer-replaceable unit (CRU) limited warranty. When installed in a chassis, these switches assume your system’s base warranty and any Lenovo warranty service upgrade.
The approximate dimensions and weight of the switch are as follows:
The shipping dimensions and weight (approximate) of the switch are as follows:
The FC5022 swithces are supported in the following environment:
The switch conforms to the following standards:
The Flex System compute nodes with the mezzanine FC HBAs installed are connected to the FC5022 switch modules through the chassis midplane. The FC5022 switches are connected to an external SAN or to a storage system directly. The following connectivity scenarios are described:
Attachment to a SAN in transparent mode
In the scenario shown in Figure 7, the FC5022 switch module is configured in the Access Gateway mode and connected to an upstream SAN fabric to access the storage. This upstream fabric can be either Brocade SAN or Cisco MDS fabric.
The FC5022 in the Access Gateway mode acts as a transparent traffic forwarder where all traffic from the HBAs in the Flex System compute nodes are sent to the upstream SAN fabric for processing. This reduces the number of physical switches in the SAN fabric and simplifies management. This configuration can be used in small, medium, and large SAN environments.
In this scenario, the FC5022 external connection to the upstream SAN fabric is displayed as an N-Port. SAN fabric configuration, such as zoning, is performed on the upstream SAN switch instead of the FC5022. For more information, refer to the Brocade Fabric OS Access Gateway Administrator’s Guide.
Figure 7. Access Gateway mode
Attachment to a Brocade SAN in Full Fabric mode
In this scenario shown in Figure 8, the FC5022 has an external connection to the Brocade FC SAN. SAN fabric configuration for the newly added Flex System hosts is performed on the upstream Brocade SAN. When the FC5022 is attached to the upstream Brocade SAN fabric, the zoning information and high level configuration parameters are automatically propagated down to the FC5022, allowing the newly attached hosts to communicate with their targets that were defined on the upstream SAN.
For more information on how to configure and manage the FC5022 switch module, refer to the Brocade Fabric OS Administrator’s Guide and Brocade Fabric OS Command Reference Manual.
Figure 8. Full Fabric mode
Direct attachment to an external storage system
In this scenario shown in Figure 9, the FC5022 has an external direct connection to the FC storage. SAN fabric configuration, including zoning, is performed on the FC5022.
For more information on how to configure and manage the FC5022 switch module, refer to the Brocade Fabric OS Administrator’s Guide and the Brocade Fabric OS Command Reference Manual.
Figure 9. Direct-attached storage
For more information see the Lenovo Flex System FC5022 16Gb SAN Switches product publications, available from the Flex System Information Center:http://publib.boulder.ibm.com/infocenter/flexsys/information/index.jsp
The following Fabric Operating System publications are available (visit the Information Center for the FC5022 and click the following link:http://ibm.brocadeassist.com/public/FabricOSv7xRelease)