Technical data

Brocade Gen 4 platform (8-Gpbs) DCX Backbone family
• Brocade DCX
• Brocade DCX-4S
Brocade Gen 5 platform (16-Gbps) DCX Backbone family
• Brocade DCX 8510-4
• Brocade DCX 8510-8
Supported Fabric OS Upgrade Paths
The following table gives you details on supported upgrade paths and steps to upgrade through
multiple versions of Fabric OS. For specific Fabric OS build numbers, refer to the Fabric OS Release
Notes.
Supported upgrade paths for multiple versions of Fabric OSTABLE 1
Current Fabric OS
version
Target Fabric OS version Upgrade Procedure
Fabric OS 7.0.0x Fabric OS 7.3.0x Direct upgrade is not supported. Upgrade to 7.1.0x
or to 7.2.0x, and then to 7.3.0x.
Fabric OS 7.1.0x Fabric OS 7.3.0x Use firmwaredownload -s to upgrade.
Fabric OS 7.2.0x Fabric OS 7.3.0x Non-disruptive upgrade.
What’s new in this document
The Fabric OS Upgrade Guide is a new publication. It replaces the “Downloading and maintaining
Firmware” chapter in the Fabric OS Administrator's Guide.
The content has been updated with the following changes:
• Upgrade and downgrade procedures for Fabric OS 7.3.0 is added.
• Upgrade from and downgrade to Fabric OS 6.4.0 is not supported.
• Fabric OS 7.3.0 is supported on the Brocade 7840 extension switch.
• SAS and FA4-18 is not supported.
• Updated the HA sync state on page 15 section.
• Added Displaying the HA redundancy status on page 16.
• Added Enabling automatic firmware synchronization from active CP to the standby CP on page
17.
• Added Manually synchronizing the firmware from the active CP to the standby CP on page 17.
Supported Fabric OS Upgrade Paths
10 Fabric OS Upgrade Guide
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