[Gllug] DD Ext3 Move

[Daniel P. Berrange]

On Wed, Mar 01, 2006 at 08:41:37PM +0000, Nix wrote:
> On Tue, 28 Feb 2006, Bruce Richardson gibbered uncontrollably:
> > On Wed, Feb 08, 2006 at 05:37:57PM +0000, Nix wrote:
> >> 
> >> I used to move filesystems around via a pair of tars to and from stdout
> >> connected via ssh, but for my most recent major move I just used `cp
> >> -av' as root.
> > 
> > Does that preserve hard links properly?  Doesn't always matter,
> > sometimes really does.
> 
> Yes, it does. (It doesn't preserve sparseness perfectly but that's
> impossible to do reliably in any case. It tries as well as it can.)

Impossible with current support in the Linux kernel, but I'm told that
Solaris has an ioctl() command which lets an app query the sparse regions
within a file.

Dan.
-- 
|=-            GPG key: http://www.berrange.com/~dan/gpgkey.txt       -=|
|=-       Perl modules: http://search.cpan.org/~danberr/              -=|
|=-           Projects: http://freshmeat.net/~danielpb/               -=|
|=-   berrange at redhat.com  -  Daniel Berrange  -  dan at berrange.com    -=|
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 196 bytes
Desc: Digital signature
URL: <http://mailman.lug.org.uk/pipermail/gllug/attachments/20060301/91512ddd/attachment.pgp>
-------------- next part --------------
-- 
Gllug mailing list  -  Gllug at gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug