Good information provided by Gero Schmidt (danke !)
Here are some general remarks on how to manage virtual fibre channel adapters on HMC-managed systems with VIOS2.1. Especially when dynamically adding new virtual fibre channel adapters to a client partition care needs to be taken to maintain the partition’s profile with its associated WWPNs. Wrong LPAR profile management easily might lead to loss of virtual WWPNs and thus loss of access to SAN devices.
When adding a new virtual fibre channel adapter to a client partition the common approach as used in the past with virtual SCSI adapters, first adding the new client adapter to the LPAR as DLPAR operation and afterwards simply adding the same adapter to the LPAR’s current profile does not work for virtual fibre channel adapters!
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