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Cisco MDS 9000 Series Configuration Guide

Cisco MDS 9000 Series
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Discards the fctimer configuration changes in the pending database and releases the fabric lock.
Fabric Lock Override
If you have performed a fctimer fabric task and have forgotten to release the lock by either committing or
discarding the changes, an administrator can release the lock from any switch in the fabric. If the administrator
performs this task, your changes to the pending database are discarded and the fabric lock is released.
The changes are only available in the volatile directory and are subject to being discarded if the switch is
restarted.
Tip
To use administrative privileges and release a locked fctimer session, use the clear fctimer session command.
switch# clear fctimer session
Database Merge Guidelines
For information about CFS merge support, refer to the Cisco MDS 9000 Family NX-OS System Management
Configuration Guide .
When merging two fabrics, follow these guidelines:
• Be aware of the following merge conditions:
• The merge protocol is not implemented for distribution of the fctimer values—you must manually
merge the fctimer values when a fabric is merged.The per-VSAN fctimer configuration is distributed
in the physical fabric.
• The fctimer configuration is only applied to those switches containing the VSAN with a modified
fctimer value.
• The global fctimer values are not distributed.
• Do not configure global timer values when distribution is enabled.
The number of pending fctimer configuration operations cannot be more than 15. At that point, you must
commit or abort the pending configurations before performing any more operations.
Note
Displaying Configured fctimer Values
Use the show fctimer command to display the configured fctimer values (see the following examples).
Displays Configured Global TOVs
switch# show fctimer
F_S_TOV D_S_TOV E_D_TOV R_A_TOV
Cisco MDS 9000 Series Fabric Configuration Guide, Release 8.x
303
Advanced Features and Concepts
Fabric Lock Override

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Cisco MDS 9000 Series Specifications

General IconGeneral
CategorySwitch
Operating SystemCisco NX-OS
PortsVaries by model
ProtocolsFibre Channel (FC), Fibre Channel over IP (FCIP), iSCSI
RedundancyRedundant supervisors, power supplies, and fans
ManagementCisco Data Center Network Manager (DCNM), CLI, SNMP
Virtualization SupportVSANs (Virtual SANs)
Security FeaturesFibre Channel Security Protocol (FC-SP)
Hot Swappable Componentspower supplies, fans
Power Supply OptionsAC and DC options available

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