On 12/29/2016 3:31 PM, Sebastian Herbszt wrote:
"not portable" might not be the term I actually meant. Let's call it server vendor dependent. Can you please elaborate on the oem platforms and side-band management you mean? I know of a solution called "ServerView Virtual-IO Manager" by Fujitsu which might fit. AFAIK it is a piece of software which communicates with the BMC and allows to change the MAC address and WWN. Of course it only works with Fujitsu servers and supported cards. I think I heard that for NICs it just changes the MAC address in the eeprom. This is not done "online" but when the server is powered on. Even though this might be a comparable case (external MAC address configuration) I think the ability to change the MAC address by the means of "ip link set dev ethX address" was not removed.
Unfortunately, I can't elaborate on the platforms. Yes, there are things similar to what you describe above. Also realize that persisting the value across different cold/hot/flr resets affects boot and dump.
How do you choose the desired WWN between the possible options (factory set, oem platform set, FA-WWN)? And wouldn't soft wwn always win because it is applied at last? However it might compete with FA-WWN. I wasn't yet able to find details on how it works. Sebastian
Unfortunately, I can't comment on that either. It's not always last wins and that's one of the issues.
I've submitted a patch to reinstated the feature - it works as well as it did before.
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