Brocade Communications Systems Fabric OS v7.1.0, Troubleshooting Manual

Page: 74 / 146

58 Fabric OS Troubleshooting and Diagnostics Guide
53-1002751-01
Considerations for downgrading firmware
5
Downgrade is not allowed because R-RDY flow control ports are configured as
D-Ports. Please use "portdporttest --show all" to view the port list and
"portcfgdport --disable" to disable before downgrading.
Downgrade is not allowed because D-Port is configured with DWDM mode. Please
use "portcfgshow" to view the port list and "portcfgdport --enable" to reset
DWDM mode before downgrading.
Downgrade is not allowed because ICL ports are configured as D-Ports. Please
use "switchshow" to view the D-port list and use "portcfgdport --disable
<port_no>" to disable it before downgrading.
Downgrade is not allowed because one or more ports have credit recovery
enabled. Please use "portcfgcreditrecovery --disable" command to disabled
credit recovery.
Downgrade is not allowed because one or more ports have FEC enabled.Please use
"portcfgfec --disable" command to disabled FEC.
Blade types
Where blades are incompatible with a firmware download, they must be removed or powered off
before a firmware download begins, as noted in the following message.
Message The FC10-6 (type 39) blade is not supported by the target firmware. Please use slotshow to find out
which slot it is in and remove it first.
Probable cause and recommended action
The firmware download operation was attempting to upgrade a system to Fabric OS v7.1.0 with one
or more of the Brocade FC10-6 blades (blade ID 39) in the system. The Brocade FC10-6 blades are
not supported on firmware v7.1.0, so the firmware download operation failed.
Use the slotShow command to display which slots the Brocade FC10-6 blades occupy. Physically
remove the blades from the chassis, or use the micro-switch to turn the blade off. Retry the
firmware download operation.
Firmware versions
The system messages in this section refer to differences between the current firmware and the
firmware you are applying to the switch.
ATTENTION
Brocade does not support upgrades from more than one previous release. For example, upgrading
from Fabric OS v7.0.0 to v7.1.0 is supported, but upgrading from Fabric OS v6.3.0 or a previous
release directly to v7.1.0 is not. In other words, upgrading a switch from Fabric OS v6.3.0 to v7.1.0
is a two-step process: first upgrade to v6.4.0, and then upgrade to v7.1.0. If you are running a
pre-Fabric OS v6.2.0 version, first you must upgrade to v6.2.0, then to v6.3.0, then to v6.4.0, and
finally to v7.1.0.