Hi Kostas,
> I can not see how someone can implement space reservation sensibly
> without supporting quotas as well, for a Tier 0/1 it might be easy
> to just setup extra pools for each reservation but this isn't an
> option for us. I suspect that this is what they plan as a solution
> until they have quotas working.
>
> The situation at the moment is really bad we can not really support
> more than a few VOs without quotas. We can get away with it at the
> moment because not many VOs really use a SE.
So what you are saying is that IC-HEP will not be able to guarantee that
you can meet your MoU targets (or monthly VO allocations) for VO storage
unless you have quotas. Without quotas and in the case where you have
multiple VOs sharing pools (in dCache) then a single VO can still use up
all of the space.
I think it is tru to say that all Tier-2s have VOs sharing pools because
it is not efficient for them to have VO specific pools. They do not have
the same level of resources as Tier-1s to simply add in extra pools as
required.
Greig
> Cheers,
> Kostas
>
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Dr Greig A Cowan http://www.ph.ed.ac.uk/~gcowan1
School of Physics, University of Edinburgh, James Clerk Maxwell Building
TIER-2 STORAGE SUPPORT PAGES: http://wiki.gridpp.ac.uk/wiki/Grid_Storage
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