I have to upgrade Brocade 4900 firmware from 6.1.1a to 6.4.0c. whats the upgrade path suggested. Can it be done online?
6.2.2e > 6.3.2b > 6.4.0c
The upgrade can be performed online but do upgrade one fabric at a time.
You can use DCFM to do your Fabric OS upgrade is makes the job a lot easier.
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