Cisco MDS 9000 Series Troubleshooting Guide

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3-18
Cisco MDS 9000 Family Troubleshooting Guide
OL-5183-02, Cisco MDS SAN-OS Release 1.3
Chapter 3 Troubleshooting Switch Level Issues and Interswitch Connectivity
Troubleshooting Fx Port Connectivity
description()
Operational Info - state(up), mode(F), speed(1 Gbps), trunk(off)
state reason(None)
phy port enable (1), phy layer (FC)
participating(1), port_vsan(1), null_vsan(0), fcid(0xef0300)
rx bb_credit multiplier(0), rx bb_credit(12)
current state [PI_FSM_ST_F_PORT_UP]
port_init_eval_flag(0x00003001), cfg wait for none
Mts node id 0x702
cnt_link_failure(54), cnt_link_success(53), cnt_port_up(4)
cnt_cfg_wait_timeout(0), cnt_port_cfg_failure(0), cnt_init_retry(0)
Port Capabilities -
Modes: E,TE,F,FL,TL,SD
Min Speed: 1000
Max Speed: 2000
Max Sourcable Pkt Size: 2112
Max Tx Bytes: 2112
Max Rx Bytes: 2112
Max Tx Buffer Credit: 255
Max Rx Buffer Credit: 12
Max Rx Buffer Credit (ISL): 12
Default Rx Buffer Credit: 12
Default Rx Buffer Credit(ISL): 12
Default Rx Buffer Credit Multiplier: 0
Rx Buffer Credit change not allowed
Max Private Devices: 63
Hw Capabilities: 0xb
Connector Type: 0x0
FCOT info -
Min Speed: 1000
Max Speed: 2000
Module Type: 8
Connector Type: 7
Gigabit Eth Compliance Codes: 0
FC Transmitter Type: 3
Vendor Name: CISCO-AGILENT
Vendor ID: 0:48:211
Vendor Part Num: QFBR-5796L
Vendor Revision Level:
Trunk Info -
trunk vsans (allowed active) (1)
If the configuration of the switch port is configured as auto, and the point-to-point link still comes up as
an FL port, verify that the HBA is configured as an NL port also.
Some HBAs support only NL mode. Verify the HBA capabilities with the vendor.
Interface UP and Connectivity Problems - Troubleshooting VSANs and Zones
If a server is not able to see a storage device, it may be because of a VSAN or zone misconfiguration.
Zone problems are more likely to happen than VSAN issues. This is because zone configuration and the
overall zone protocols are more complex than VSAN configuration, and the VSAN membership can be
verified using the CLI or the GUI. Therefore, checking the zone configuration is the first step to take
when the host is not able to access the storage, and the port are all up along the path between the server
HBA and the storage subsystem interface.

Cisco MDS 9000 Series Specifications

General

Category	Switch
Operating System	Cisco NX-OS
Ports	Varies by model
Protocols	Fibre Channel (FC), Fibre Channel over IP (FCIP), iSCSI
Redundancy	Redundant supervisors, power supplies, and fans
Management	Cisco Data Center Network Manager (DCNM), CLI, SNMP
Virtualization Support	VSANs (Virtual SANs)
Security Features	Fibre Channel Security Protocol (FC-SP)
Hot Swappable Components	power supplies, fans
Power Supply Options	AC and DC options available