Description
After #7837, 2TiB gimlets will have roughly 1667 allocated as VMM reservoir, but the maximum instance RAM is hard coded as 256GiB:
Line 120 in d4a64cd
Customers deploying these gimlets are requesting larger instances than this. In order to support this, Nexus has to be aware that these gimlets have more of a reservoir to allocate from, and offer larger instance sizes accordingly.