Loop Monitoring Initiation; The Show Tech-Support Command - Cisco DS-X9530-SF1-K9 - Supervisor-1 Module - Control Processor Configuration Manual

Loop Monitoring Initiation

S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
o bad_fc
o els_cmd
o swils_cmd
o fcp_lun
o fcp_task_mgmt
o fcp_scsi_cmd
o fcp_status
o gs_type
o gs_subtype
o gs_cmd
o gs_reason
o gs_reason_expl
o dns
o udns (unzoned name server)
o fcs
o zs
o fc
o els
o swils (use as swils[x:y] similar to fc)
o fcp
o fcct (use as fcct[x:y] similar to fc)
Loop Monitoring Initiation
By default, the loop monitoring is disabled in all switches in the Cisco MDS 9000 Family. When a disk
is removed from a loop port, the loop stays active based on the bypass circuit. Thus the disk removal is
not known until you try to communicate with the disk. To detect such removals, the disks can be polled
periodically (every 20 seconds).
Changes to the loop monitoring feature should be made by an administrator or individual who is
Caution
completely familiar with switch operations.
Use the fcinterop loop-monitor command to enable loop polling for FL ports in a Cisco MDS 9000
Family switch.
To enable the loop monitoring feature, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# fcinterop loop-monitor
switch(config)# no fcinterop loop-monitor

The show tech-support Command

The show tech-support command is useful when collecting a large amount of information about your
switch for troubleshooting purposes. The output of this command can be provided to technical support
representatives when reporting a problem.
The show tech-support command displays the output of several show commands at once. The output
from this command varies depending on your configuration. Use the show tech-support command in
EXEC mode to display general information about the switch when reporting a problem.
Cisco MDS 9000 Family Configuration Guide
49-14
(Generic Services type)
(Generic Services subtype)
(name server)
(fabric configuration server)
(zone server)
(use as fc[x:y] where x is offset and y is length to compare)
(use as els[x:y] similar to fc)
(use as fcp[x:y] similar to fc)
Chapter 49
Purpose
Enters configuration mode.
Enables the loop monitoring feature.
Disables (default) the loop monitoring feature and
reverts the switch to the factory defaults.
OL-6973-03, Cisco MDS SAN-OS Release 2.x
Troubleshooting Your Fabric