Cisco MDS SanOS Troubleshooting Guide -- Troubleshooting Mixed Generation Hardware

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This section describes how to identify and resolve problems that might occur in the mixed generation hardware components of the Cisco MDS 9000 Family. It includes the following sections:

Contents


Overview

The below table identifies the modules supported by the Cisco MDS 9500 Series switches and Cisco MDS 9216A and Cisco MDS 9216i switches, as well as the Generation 2 switches:

Table 5-1 Generation 2 Modules and Switches

Part Number

Description

Modules

DS-X9148

48-port 4-Gbps Fibre Channel switching module

DS-9304-18K9

18-port 1/2/4-Gbps Fibre Channel switching module with 4 Gigabit Ethernet ports

DS-X9112

12-port 4-Gbps Fibre Channel switching module

DS-X9704

4-port 10-Gbps Fibre Channel switching module

DS-X9530-SF2-K9

Supervisor-2 module (Cisco MDS 9500 Series switches only)

Switches

DS-C9222i-K9

10-port 4-Gbps Fibre Channel switch with 4 Gigabit Ethernet IP storage services ports, and a modular expansion slot to host Cisco MDS 9000 Family Switching and Services Modules

DS-9134-K9

34-port 4-Gbps Fibre Channel switch

DS-X9124

24-port 4-Gbps Fibre Channel switch

DS-9304-K9

18-port 1/2/4-Gbps Fibre Channel switch with 4 Gigabit Ethernet ports in fixed slot1

Note Note: Generation 2 Fibre Channel switching modules are not supported on the Cisco MDS 9216 switch; however, they are supported by both the Supervisor-1 module and the Supervisor-2 module.

The 4-port 10-Gbps Fibre Channel switching module supports 10-Gbps port rates. The rest of the Generation 2 modules support 1-Gbps, 2-Gbps, 4-Gbps, or autosensing port rates.

For detailed information about the installation and specifications for these modules, refer to the hardware installation guide or the Configuration guides at the following website:

http://cisco.com/en/US/products/ps5989/tsd_products_support_series_home.html.

Port Groups

Each module has four groups of one or more ports in port groups that share common resources, such as bandwidth and buffer credits. The table below shows the port groups for the Generation 2 Fibre Channel switches and modules.

Table 5-2 Bandwidth and Port Groups for Generation 2 Modules

Module or Switch

Description

Number of Ports Per Port Group

Bandwidth Per Port Group

Maximum Bandwidth Per Port

DS-X9148

48-port 4-Gbps

12

12.8

4-Gbps1

DS-X9124

24-port 4-Gbps

6

12.8

4-Gbps2

DS-9304-18K9

18-port/4-port 4-Gbps (MSM-18/4 module)

6

12.8

4-Gbps1

DS-X9112

12-port 4-Gbps

3

12.8

4-Gbps1

DS-X9704

4-port 10-Gbps

1

10

10-Gbps2

DS-C9134-K9

32-port 4-Gbps

4

16

4-Gbps

2-port 10-Gbps

1

10

10-Gbps

DS-C9124

24-port 4 Gbps

6

12.8

4-Gbps

DS-C9222i-K9

18-port 4-Gbps

6

12.8

4-Gbps

1 Dedicated bandwidth with no oversubscription

2 Dedicated bandwidth or oversubscribed using shared buffer resources.

Note Note: Port groups are defined by the hardware and consist of sequential ports. For example, ports 1 through 12, ports 13 through 24, ports 25 through 36, and ports 37 through 48 are the port groups on the 48-port 4-Gbps Fibre Channel switching modules.

Port Speed Mode

The table below shows the port speeds allowed on each Generation 2 switching module.

Table 5-3 Configurable Port Speeds on Generation 2 Switching Modules

Module

Port Speed Modes

Default Configuration

48-port 4-Gbps

Auto, auto (max 2 Gbps), 1, 2, 4

Auto, shared

24-port 4-Gbps

Auto, auto max 2000 (2 Gbps), 1, 2, 4

Auto, shared

12-port 4-Gbps

Auto, auto max 2000 (2 Gbps), 1, 2, 4

Auto, dedicated

4-port 10-Gbps

Auto1

Auto, dedicated

1 4-port 10-Gbps can be configured as auto mode, but only supports 10-Gbps connections.

Dynamic Bandwidth Management

Table 5-4 Bandwidth Reserved for Dedicated Mode

Port Speed

Bandwidth Reserved per Port

Auto / 4 Gbps

4 Gbps

Auto max 2000 / 2 Gbps

2 Gbps

1 Gbps

1 Gbps

101

10 Gbps

1 Available only on the 4-port 10-Gbps switching module.

Table 5-5 shows the bandwidth reserved based on port speed for ports in shared mode. Table 5-5 Bandwidth Reserved for Shared Mode

Module Type

Port Speed

Bandwidth Reserved

24-port 4-Gbps

Auto / 4 Gbps

1 Gbps

Auto max 2000 / 2 Gbps

0.5 Gbps

1 Gbps

0.25 Gbps

48-port 4-Gbps

Auto / 4 Gbps

0.8 Gbps

Auto max 2000 / 2 Gbps

0.4 Gbps

1 Gbps

0.2 Gbps

Out-of-Service Interfaces

Port Index Availability

Combining Modules and Supervisors

Initial Troubleshooting Checklist

Generation 1 and Generation 2 Issues

Module Does Not Come Online

Verifying Port Index Allocation Using Device Manager

Verifying Port Index Allocation Using the CLI

Cannot Configure Port in Dedicated Mode

Verifying Bandwidth Utilization in a Port Group Using Device Manager

Verifying Bandwidth Utilization in a Port Group Using the CLI

Cannot Enable a Port

Cannot Upgrade Supervisor System Image

Selecting the Correct Software Images

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