Support multi-actuator SAS devices. (E.g. Segate Mach.2)

Problem/Justification
Elements of the TrueNAS GUI do not work properly (or they work incosistently) when a system has multiple devices attached with the same serial number.
Although multi-actuator SAS drives present each actuator as a unique LUN, they share the physical drive serial number.

[NAS-126776] GUI Interaction with Seagate SAS Mach.2 Drives - iXsystems TrueNAS Jira

Impact
Undesirable user experience and potential for additional impact. (Broken alerts?)

User Story
Storage device identity should be enhanced by concatenating serial number and LUN.

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Sticking some tech blogger/media posts around this topic here

I would also love this feature. Iā€™m running in to a wall trying to get these drives configured correctly in the CLI.

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