This chapter refers to the following specific types of blades inserted into either the Brocade 48000
director or Brocade DCX or DCX-4S enterprise-class platform:

•

FC blades or port blades contain only Fibre Channel ports: Brocade FC4-16/32/48, FC10-6,
and FC8-16/32/48/64.

•

AP blades contain extra processors and some have specialized ports: Brocade FR4-18i,
FC4-16IP, FA4-18, FCOE10-24, and FX8-24.

•

CP blades have a control processor (CP) used to control the entire switch; they can be inserted
only into slots 5 and 6 on the Brocade 48000, slots 6 and 7 on the Brocade DCX, and slots 4
and 5 on the Brocade DCX-4S.

•

CORE8 and CR4S-8 core blades provide ICL functionality between two Brocade DCX
Backbones. CORE8 blades can be inserted only into slots 5 and 8 on the Brocade DCX. CR4S-8
blades can be inserted only into slots 3 and 6 on the Brocade DCX-4S.

Typically, issues detected during firmware download to AP blades do not require recovery actions
on your part.

If you experience frequent failovers between CPs that have different versions of firmware, then you
may notice multiple blade firmware downloads and a longer startup time.

ATTENTION

Brocade DCX Director with FC8-16/32/48 blades: If you are running Fabric v6.1.0, then you cannot
downgrade to pre-Fabric OS v6.0.0 versions as they are not supported on this director.

Symptom

Relocation of internal image times out on CP8 core blade.

Probable cause and recommended action

This can be caused by issues in the co-CPU. If this happens, the firmware download process
synchronizes the partitions in the main-CPU and co-CPU by starting a firmware commit operation.
Wait at least 15 minutes for the commit operation to complete, issue the firmwareShow command
to verify the partitions are synchronized, and reissue the firmwareDownload command. If the
problem persists, you will need to contact the switch service provider.

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