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Backing up Truecrypt container files using sync software

post #1 of 2
Thread Starter 
Not sure if this is the best place to post this but here goes:

I ran a search for this but I didn't find anything on syncing container files. My current backup strategy is with 4 3TB HDD's. Drive D (Raid 1), Drive F, and an Ext HDD. I'm using Freefilesync in mirror mode. So throughout the day as I work on files it just saves to my D drive. Then at the end of the day I just mirror the D drive to the F and EXT using freefilesync and it just updates whatever has changed etc.

So Ive been reading about encryption but there wasn't a clear answer to the synchronization aspect so hopefully some truecrypt/backup gurus could let me know if what I plan to do is correct. For starters I don't care about encrypting my entire disk, I only want to make a container file within my D, F, and ext drive. So from what I understand this would be the right thing to do:

1) Create Containers in D Drive, F Drive and Ext Drive.
2) Back up the 3 volume headers manually and store them in a safe place.
3) Mount the three containers using TrueCrypt. (Add these as favorites so they always mount to same drive letter). Let’s say its X, Y and Z.
4) Copy files I want encrypted into the new container from the D drive.
5) Create a profile within my sync software that mirrors my D drive to the F and EXT Drives and that mirrors my X Drive to my Y and Z Drives while OMITTING the actual TC container files within all 3 HDD’s. (This would avoid syncing the entire container file every time I backup data/avoid data corruption since its currently mounted)
6) Sync like before and exit software
7) Dismount all containers using TC
8) Then “Safely remove ext HDD”/ power off etc.
9) Throughout time as I have less space for my container use the program "extcv" to extend my container from D, F, and EXT Drive. (This program is compatible with TrueCrypt 7.1a.)

So with this, I have 2 more questions that need more clarification:

Do I have to recreate a new backup of all three of my volume headers each time I add new files to those containers? I assume no since from what I've read the only time you need to recreate the volume headers is when you change the password and/or keyfiles.

Do I need to recreate a new backup of my three volume headers each time I expand the container files? I assume yes based on what the “Read ME” file states under technical details for 3-5.
o D) Technical details
o
o The expansion of a TrueCrypt volume consists of the following steps:
o 1) allocate disk space (only for container files)
o 2) fill new space with random data (if requested by user)
o 3) write new backup header
o 4) write new primary header
o 5) wipe old backup header
o 6) mount the volume
o 7) expand the file system (only NTFS)
o 8) dismount the volume

Let me know if possible and thanks.
post #2 of 2
Thread Starter 
Well, I guess I'll just wait one more day and just go through with it. Hopefully my assumptions are correct then. Maybe I should of posted this under "network and security"?

Thanks again.
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