No Compression on one of the 2 disks

[I May Need]

First Disk: 1 TB SSD
Second Disk 238 GB SSD

Suggested Compression Method used.

Result:

Compressed 1 TB First Disk Size: ~250 GB
Compressed 238 GB Second Disk Size: 238 GB

There is no compression on second disk even if I clone it alone.
Compressed size always equal to non compressed size. (Tested a few times)

I remember it saying somewhere 'sense data is missing', and it adds it while checking the disks.
Can it be related to that?
(This disk is connected to the computer by removing the CD-Drive and adding a hard disk caddy)

Thanks.

P.S.: Thanks for the wonderful software.

[Steven Shiau]

If you can, please check the file "clonezilla-img" (plain text file), it should contain that messages. With that you can post that warning messages, so that it's easier for us to understand that.

Steven

[I May Need]

There is not any warning message.

[Steven Shiau]

From the log file, it said:
/dev/sdb1 filesystem: Unknown or unsupported.

So its file system is not supported by Clonezilla, or it can not be identified.
If you can, after booting Clonezilla live, enter command line prompt, then run:
1. sudo -i
2. parted -s /dev/sdb print
3. ocs-get-dev-info /dev/sdb1 fs

Please post the results of 2 & 3.
Thanks.

Steven

[I May Need]

I will.
sdb1 is truecrypt encrypted, that is why it says 'not supported or unknown'.

[Steven Shiau]

Of course. If it's encrypted, unless you decrypted, otherwise the compression is useless in reducing the data size.
For more info, check this:
https://serverfault.com/questions/17855/can-i-compress-an-encrypted-file

Steven

[I May Need]

Thanks for the reply and the link.
At least I know now why.