So I guess the point is that if you can use utilities like 'dd', or
'tcopy' on Solaris, then why ever use the clone volume feature? Other
than the fact that cloning removes the multi-plexing (nice), wouldn't
'dd' or 'tcopy' be faster and thus preferred?

George

Yura Pismerov wrote:
>
> George Sinclair wrote:
> >
> > We all know that you can clone a NetWorker volume which is really just
> > cloning all the savesets, but does anyone if you can use something like
> > 'dd' to dump the contents of a NetWorker labeled tape to something like
> > tar and then re - 'dd' it back to another "blank" tape?
>
>         Why don't run dd directly tape-to-tape with bs=64k (that is what
> Networker uses) ?
>
> >
> > In essence, I'm trying to determine if it's possible to create an exact
> > copy of a NetWorker labeled tape without using NetWorker. Seems it would
> > be faster than cloning since it would not have to un-multi-plex
> > anything. It could just read and write. Data is data so why wouldn't it
> > work? Obviously, NetWorker would not have to be aware that the duplicate
> > tape existed, until you used it in which case it would just think it was
> > the original. Would they not be interchangeable?
> >
> > Alternatively, if the NetWorker label on the source tape proves a
> > problem then might it be possible to somehow skip past this part of the
> > source tape, create a new labeled tape and then dump everything else on
> > the original tape that comes after the label to the new labeled (copy)
> > tape.
> >
> > Would be curious to know if anyone has experimented with this and how
> > you did it.
> >
> > Thanks.
> >
> > George
> >
> > --
> > Note: To sign off this list, send a "signoff networker" command via email
> > to listserv AT listmail.temple DOT edu or visit the list's Web site at
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>
> --
> Yuri Pismerov, Sr. System Administrator,
> TUCOWS.COM INC. (416) 535-0123  ext. 1352

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