SSD with multiple partitions - disk life implications

Solution 1:

It shouldn't matter. The drive doesn't know about partitions or file systems. It deals with blocks of pages, with a giant map of which "disk sectors" are in which pages. It will cycle through all the available blocks, whether writing the same sectors over and over, or writing to never-used sectors. (When "overwriting" a sector, it then knows that old page is now available.)

Solution 2:

It does matter somewhat. Your partitions should be aligned to the erase block size (e.g. 512KiB) of the disk, otherwise it may cause more writes to the disk.

But the disk itself is not aware of any partitions, as Ken wrote.