Maybe I am nitpicking Greg, but just to spell it out for the others: dpm
DOESN'T need the data migrating, just metadata adding (allegedly).
dCache DOES needs data migration as its data is stored in its own
format.
John
> -----Original Message-----
> From: Testbed Support for GridPP member institutes
> [mailto:[log in to unmask]] On Behalf Of Greig A Cowan
> Sent: 07 July 2005 19:44
> To: [log in to unmask]
> Subject: Re: DPM source RPMS
>
> > My understanding is that one of the selling points for DPM
> is that it
> > allows pointers to files in the old SE to remain valid (so
> that sites
> > don't have to maintain classic_SEs in perpetuity) - which rather
> > undermines that assumption!
>
> DPM only requires metadata operations to migrate data stored on the
> classic SE into DPM (which has an SRM interface). The
> situation for dCache
> is more complex, but I believe (can anyone confirm?) that a fix is
> currently being worked upon to provide some sort of data
> migration tool
> from the classic SE to dCache.
>
> Greig
>
> >
> > Have I got this wrong? (_very_ possible!) Are we supposed
> to be thinking
> > in terms of moving to an SRM SE rather than upgrading the
> current one
> > (which DPM was supposed to allow)?
> >
> > Thanks
> >
> > Henry
> >
> >
>
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> Greig Cowan e: [log in to unmask]
> School of Physics t: +44 131 650 5300
> The University of Edinburgh f: +44 131 650 7189
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