Re: Bad blocks and encrypted volume corruption

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The results depend on the cipher-mode and the block-size, just as
you say. AFAIK the default block size is 512 bytes, since dm-crypt
does not operate on a filesystem. The chaining mode is used only 
within a sector.

That means encryption has no impact on sector loss at all.

Arno

On Mon, Sep 17, 2007 at 12:48:56AM -0400, Eric St-Laurent wrote:
> Hi,
> 
> What is the expected result if a hard drive develop bad blocks on a
> encrypted volume?  I suppose only the affected bad blocks are
> unrecoverable (same a the unencrypted case), not the whole volume,
> right?
> 
> Does the cipher chaining mode has any effect on this?
> 
> Does dm-crypt work with 512 bytes block or 4096 bytes pages?
> 
> 
> Best regards,
> 
> - Eric
> 
> 
> 
> ---------------------------------------------------------------------
> dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/
> To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx
> For additional commands, e-mail: dm-crypt-help@xxxxxxxx
> 

-- 
Arno Wagner, Dipl. Inform., CISSP --- CSG, ETH Zurich, wagner@xxxxxxxxxxxxxx 
GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans

If it's in the news, don't worry about it.  The very definition of 
"news" is "something that hardly ever happens." -- Bruce Schneier 

---------------------------------------------------------------------
dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/
To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx
For additional commands, e-mail: dm-crypt-help@xxxxxxxx


[Index of Archives]     [Device Mapper Devel]     [Fedora Desktop]     [ATA RAID]     [Fedora Marketing]     [Fedora Packaging]     [Fedora SELinux]     [Yosemite News]     [KDE Users]     [Fedora Tools]     [Fedora Docs]

  Powered by Linux