[Info-vax] Uptime for OpenVMS

[Paul Sture]

In article <iqjpfr$ekc$1 at pcls6.std.com>,
 moroney at world.std.spaamtrap.com (Michael Moroney) wrote:

> Johnny Billquist <bqt at softjar.se> writes:
> 
> >On 2011-05-13 09.38, Steve Thompson wrote:
> >>> The equivalent of BACKUP/PHYSICAL would do it. It would be nice though...
> >>
> >> That would be dd.
> 
> >Hmm. Yuck! Yes, dd would be a way to copy a disk preserving the inode 
> >numbers. Output disk must be the same size as input disk. And it will be 
> >slow. But ok... :-)
> 
> >But the OS would still not know that this new disk was equivalent to the 
> >old one...
> 
> What's needed is a Linux version of VMS's mount verification.

Linux (at least Ubuntu) nowadays uses UUIDs (Universal Unique 
Identifiers) to identify disks.  Dunno without trying whether a dd 
operation would duplicate the UUID or not.

<http://www.cyberciti.biz/faq/linux-finding-using-uuids-to-update-fstab/>

-- 
Paul Sture