LHC Computer Grid - Rollout
> [mailto:[log in to unmask]] On Behalf Of
> Maarten Litmaath, CERN said:
> Yes. Now soon in a grid near you: The Return of the Classic SE,
> or rather, The Classic SE Strikes Back. :-)
I seem to remember that about a year ago I bet Zdenek that LCG would
still have classic SEs at the end of 2005 :) Maybe they'll all be gone a
year from now, but ...
> Even read-only access is problematic, because it means a file
> cannot be
> transparently moved to another file system or disk server, as
> there may
> be applications that have the file open for reading.
Isn't that what pinning is supposed to solve?
> But now there are the concepts of tactical and strategic SEs:
Are there? I know there was some talk about it in the glite architecture
doc, but I could never really see the point as in practice you have a
continuum and not just two types, and we already have the concept of
"volatile" storage space - which none of the software uses! Anyway, I've
never seen anything appear that looks like a tactical SE, either in LCG
or glite.
Stephen
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