FileVault 1 and 2: should we have tags [filevault-1] and [filevault-2] for the two different technologies?

Question

Problem

Looking ahead: expect confusion to arise from Apple's commonplace use of one word FileVault — without a version number — for two very different technologies.

(Versions 1 and 2 both involve encryption, but encryption is applied at totally different levels.)

Options (not mutually exclusive)

1. continue with one tag filevault for two different technologies

   I can add the tag core-storage to questions that relate to FileVault 2. Example result:

   http://apple.stackexchange.com/questions/tagged/core-storage+filevault

   If only a limited number of tags can be added to a question, this is not ideal.

2. have two tags filevault-1 and filevault-2 instead of the one filevault

   I can do a little CHAOS-like housekeeping. Currently only six results to the following:

   http://apple.stackexchange.com/questions/tagged/filevault

3. ????

   At the moment I can't recall the third option that came to mind, but I'll leave this question as a placeholder, to be revisited and edited very soon. Hopefully within the next twenty-four hours.

4. tag synonym legacy-filevault

   Starred in Ask Different Chat.

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Meta users: if you imagine any other options, please edit this question. Thanks :-)

Side note

We can not assume version 2 where FileVault is mentioned by a user of Lion. Both versions 1 and 2 can be used simultaneously.

Answer 1

I think you've got it right with [filevault-1] and [filevault-2].

That won't cause any confusion, and it follows our usual pattern of [product-version] (like [ios-4]).

Answer 2

Draft text for notional filevault-2 tag

What's below should appear more effective in the tag wiki than in this Q&A …

Excerpt

FileVault 2: Apple Core Storage full disk encryption (FDE) of the startup volume

Body

In lion:

• filevault-1 and filevault-2 can work together in harmony, without conflict
• the interface to enable or disable filevault-2 is in system-preferences
• filevault-2 uses core-storage
• filevault-2 is usually known as FileVault, without a version number.

Answer 3

Draft text for notional filevault-1 tag

What's below should appear more effective in the tag wiki than in this Q&A …

Excerpt

FileVault 1: encryption of a user's home directory

Body

In tiger, panther, leopard and snow-leopard:

• the interface to enable or disable filevault-1 is in system-preferences
• filevault-1 is always known as FileVault, without a version number.

In lion:

• filevault-1 and filevault-2 can work together in harmony, without conflict
• the interface to disable filevault-1 is in system-preferences alongside the interface for filevault-2
• filevault-1 is sometimes known as FileVault, without a version number
• filevault-1 is sometimes known as Legacy FileVault.