Operational Considerations When Removing Crossbars; Graceful Shutdown Of A Crossbar - HP Cisco MDS 9020 - Fabric Switch Configuration Manual

About Crossbar Management
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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Generation 2 consists of all new hardware supported by Cisco SAN-OS Release 3.0(1) and later,
including the following:
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The Cisco MDS 9500 Series Directors running Cisco MDS SAN-OS 3.0(1) or later support the following
types of crossbars:
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Operational Considerations When Removing Crossbars

You can mix and match Generation 1 and Generation 2 hardware on the Cisco MDS 9500 Series
Directors running Cisco MDS SAN-OS 3.0(1) or later without compromising the integrity and
availability of your SANs based on Cisco MDS 9500 Series Directors.
To realize these benefits, you must consider the following operational requirements when removing
crossbars for maintenance activities:
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Graceful Shutdown of a Crossbar

You must perform a graceful shutdown of a crossbar (integrated or external) before removing it from the
MDS 9500 Series Director.
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Cisco MDS 9000 Family CLI Configuration Guide
10-14
32-port 2-Gbps Fibre Channel switching module
16-port 2-Gbps Fibre Channel switching module
8-port IP Storage Services (IPS-8) module
4-port IP Storage Services (IPS-4) module
Storage Services Module (SSM)
14/2-port Multiprotocol Services (MPS-14/2) module
Cisco MDS 9513 Director chassis
Supervisor-2 module
48-port 4-Gbps Fibre Channel switching module
24-port 4-Gbps Fibre Channel switching module
12-port 4-Gbps Fibre Channel switching module
4-port 10-Gbps Fibre Channel switching module
Integrated crossbar—Located on the Supervisor-1 and Supervisor-2 modules. The Cisco MDS 9506
and 9509 Directors only use integrated crossbars.
External crossbar—Located on an external crossbar switching module. Cisco MDS 9513 Directors
require external crossbar modules.
Graceful Shutdown of a Crossbar, page 10-14
Backward Compatibility for Generation 1 Modules in Cisco MDS 9513 Directors, page 10-15
You must enter the EXEC mode out-of-service xbar command for a graceful shutdown of external
crossbar modules in a Cisco MDS 9513 Director.
out-of-service xbar slot
Where slot indicates the external crossbar module slot number.
Chapter 10 Managing System Hardware
OL-16184-01, Cisco MDS SAN-OS Release 3.x