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.

-- james

--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to