[Info-vax] Large mailboxes - RMS Indexed file internal design

[Stephen Hoffman]

On 2020-12-05 18:08:22 +0000, Hein RMS van den Heuvel said:

> Interestingly (to some) it could readily grow to 4 bytes as there is an 
> adjacent unnamed fill word to allow for aligned quad-word moves.

An investment in migrating RMS indexed files from a word to a longword 
seems unlikely to substantially postpone our reaching the limitations 
of the current design.
This also given we're (hopefully) migrating from the longword logical 
block addresses (2 TiB limit) to longer will be disruptive, and given 
we're using other databases for many apps.
Maybe once we're past 2 TiB and headed for exabyte-scale volumes, RMS 
indexed updates will be interesting.
Or maybe we'll be using some other database or other (new) RMS 
key-value file format support then.
GFS+ or otherwise, and Rdb or SQLite or otherwise.

-- 
Pure Personal Opinion | HoffmanLabs LLC