Graceful Shut Down - Cisco DS-X9530-SF1-K9 - Supervisor-1 Module - Control Processor Configuration Manual

Chapter 1 Product Overview
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 .
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See
"Configuring PortChannels,"
Switch Reliability
Switches in the Cisco MDS 9000 Family maintain internally controlled reliability services that ensure
continued service with no degradation. This reliability service includes the following:
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Graceful Shut Down

The Cisco SAN-OS software implicitly performs a graceful shut down in response to either of the
following actions:
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A graceful shut down ensures that no frames are lost when the interface is shutting down. When a shut
down is triggered either by you or the Cisco SAN-OS software, the switches connected to the shut down
link coordinate with each other to ensure that all frames in the ports are safely sent through the link
before shutting down. This enhancement reduces the chance of frame loss.
Cisco Fabric Services
The Cisco SAN-OS software uses the Cisco Fabric Services (CFS) infrastructure to enable efficient
database distribution and to foster device flexibility. It simplifies SAN provisioning by automatically
distributing configuration information to all switches in a fabric. The following Cisco SAN-OS features
use the CFS infrastructure:
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OL-6973-03, Cisco MDS SAN-OS Release 2.x
Protects against link failure using the PortChannel (port aggregation) feature. This feature is also
available in Cisco MDS 9200 Series and in the Cisco MDS 9100 Series.
Provides management redundancy using the Virtual Router Redundancy Protocol (VRRP). This
feature is also available in Cisco MDS 9200 Series and in the Cisco MDS 9100 Series.
Performs nondisruptive restarts of a failed process on the same supervisor module. A service
running on the supervisor modules and on the switching or services module tracks the HA policy
defined in the configuration and takes action based on this policy. This feature is also available in
the Cisco MDS 9200 Series and in the Cisco MDS 9100 Series.
Chapter 8, "Configuring High Availability," Chapter 6, "Software Images," Chapter 13,
and the
Provides power-on self testing (POST)
Detects errors, isolates faults, performs parity checking, and checks illegal addresses
Enables remote diagnostics using Call Home troubleshooting features
Displays LEDs that summarize the status of each switching or services module, supervisor module,
power supply, and fan assembly
If you shut down an interface operating in the E port mode
If a Cisco SAN-OS software application executes a port shut down as part of its function
NTP (see "NTP Configuration Distribution" section on page
Dynamic Port VSAN Membership (see
Distributed Device Alias Services (see
IVR topology (see "Database Merge Guidelines" section on page
TACACS and RADIUS (see the
"The Virtual Router Redundancy Protocol" section on page
Chapter 17, "Creating Dynamic
Chapter 20, "Distributing Device Alias
"Distributing AAA Server Configuration" section on page
Cisco MDS 9000 Family Configuration Guide
Software Features
4-20).
VSANs").
Services").
18-29).
36-16.
28-15).
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