Cisco MDS SanOS Troubleshooting Guide -- Troubleshooting Mixed Generation Hardware
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Revision as of 14:13, 20 July 2010
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: | 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: | 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.
|
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
|
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. |
|
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 |
| Note: | When migrating a host only supporting up to 2-Gbps traffic to the 4-Gbps switching modules, use autosensing with 2-Gbps maximum bandwidth. |
| Note: | The 4-port 10-Gbps switching module only supports 10-Gbps links. |
Out-of-Service Interfaces
You can take interfaces out of service to release shared resources that are needed for dedicated bandwidth. This feature is especially useful for the 48-port 4-Gbps switching modules. When an interface is taken out of service, all shared resources are released and made available to the other interface in the port group or module.
 | Caution: | If you need to bring an interface back into service, you might disrupt traffic if you need to release shared resources from other interfaces. |
Port Index Availability
Each chassis in the Cisco MDS 9000 Series has a hardware-based maximum port availability based on internally assigned port indexes. When the maximum number of port indexes is reached in a chassis, any modules remaining or added to the chassis will not boot up. The number of physical ports on a Fibre Channel module is equal to its number of port indexes. However, for Gigabit Ethernet modules (IPS-8, IPS-4, and MPS-14/2), one physical port is equal to four port indexes (one port index for iSCSI and three port indexes for FC IP tunnels). Table 5-6 lists the physical ports and port indexes (virtual ports) allocated per Cisco MDS 9000 module.
|
Module |
Physical Ports |
Port Indexes Allocated |
|---|---|---|
|
48-port 4-Gbps Fibre Channel switching module |
48 |
48 |
|
24-port 4-Gbps Fibre Channel switching module |
24 |
24 |
|
12-port 4-Gbps Fibre Channel switching module |
12 |
12 |
|
4-port 10-Gbps Fibre Channel switching module |
4 |
4 |
|
16-port 2-Gbps Fibre Channel module |
16 |
161 |
|
32-port 2-Gbps Fibre Channel module |
32 |
321 |
|
8-port Gigabit Ethernet IP Storage services module |
8 |
321 |
|
4-port Gigabit Ethernet IP Storage services module |
4 |
32 (with Supervisor-1)16 (with Supervisor-2) |
|
32-port 2-Gbps Fibre Channel Storage Services Module (SSM). |
32 |
321 |
|
14-port Fibre Channel/2-port Gigabit Ethernet Multiprotocol Services (MPS-14/2) module |
162 |
32 (with Supervisor-1)22 (with Supervisor-2) |
|
1 All Generation 1 modules reserve port indexes on fixed boundaries with Supervisor-1. See Table 5-7. 2 Fourteen Fibre Channel ports and two Gigabit Ethernet ports. |
