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Question about Truecrypt and RAID volume expansion

K

ksipsi

n00b
Joined
Jul 24, 2007
Messages
5
Hi!
I tried to search the forum and unfortunately I only found some partial answers about what is bothering me.
So here is my question:
A) Let's say that I create a RAID5 unit with 4x4TB hdd. I now make the volume dynamic and thus in my OS (windows) I now have a 12TB dynamic volume which I see it through the OS as a single 12TB drive.
B)I then proceed to encrypt the whole volume with truecrypt 7.1.a. Now everytime I restart the computer I initially have a 12TB unformated disk volume (because it is now encrypted and the OS can't read it). I open truecrypt and then select my 12TB partition/device.
C)Now let's say that I want to expand my volume from 4x4TB to 5x4TB hdd. How do I do it without losing the information that already exists in my encrypted volume and still ending up with an encrypted volume? Is it possible to use truecrypt in this kind of way?

Can a RAID volume be expanded or/and migrated while using truecrypt ? Or once you encrypt a volume you cannot do anything more ?
Is the extcv of any help ? :confused:

I am asking because I am planing to buy a new RAID6 card (probably adaptec) and build a big volume >20TB. But I would like to have the contents encrypted.

I would be extremely thankful if any of you who has build and expanded arrays could give me some information.

P.S. I hope I have explained my question relatively clearly. If you think it does not make much sense, I will gladly try to explain it better.
 
first DO NOT USE TRUECRYPT! It is dead and broken. Use Veracrypt. It fixed the know security issues and has continued the project.

If i understand correctly you want to expand it. First thing you should do is DECRYPT the ENTIRE volume. Then expand it and Re-encrypt. This is a for sure way to reduce any potential problems and really the only option because you need to re do the entire thing anyways using veracrypt and not TC
 
SomeGuy133 said:
first DO NOT USE TRUECRYPT! It is dead and broken. Use Veracrypt. It fixed the know security issues and has continued the project.

If i understand correctly you want to expand it. First thing you should do is DECRYPT the ENTIRE volume. Then expand it and Re-encrypt. This is a for sure way to reduce any potential problems and really the only option because you need to re do the entire thing anyways using veracrypt and not TC
Click to expand...

Thank you for your answer and feedback.
I guess this is one way to make it work albeit very time consuming and all this read/write process in order to decrypt and then re-encrypt the data kinda puts unnecessary strain on the disk drives. I wished it could be done in some other more elegant way.
Thanks again man!

If there is an even wiser man who wishes to contribute I am still kindly open to suggestions!
 
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