Recommended important files to keep on SSD for 7-piece Syzygy

[Nordlandia]

I have a 500 GB SSD available. The idea was that it should be allocated for 7-piece WDL. I want to maximize the performance by keeping the most frequent visted engine endgames on that drive. Keep in mind 500 GB is roughly 5.9% of WDL-7.

Any statistics available on regularity of most common 7 piece endgames occurrences by engines?

Last Komodo includes a PDF file of important files to keep. Any advice and suggestions will be greatly appreciated.

[Dann Corbit]

Don't the files with pawns in them require the underlying files with the pieces promoted?

[xr_a_y]

Simply using it as a cache is not efficient enough for 7-piece Syzygy ?

[syzygy]

Don't the files with pawns in them require the underlying files with the pieces promoted?

Not if you don't care too much about being able to win a winning TB position.

A probe of a 7-piece WDL table may do probes of 6-piece WDL subtables (reached through captures), which means you need those subtables to be sure that the probe of the 7-piece WDL table succeeds.

But a probe of a 7-piece WDL table will not probe 7-piece WDL tables reached through promotions.