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Hi Brian, Don't think there's a system wide setting for this for dcap. You'll have to set it up in you client setup: export DCACHE_RAHEAD=true export DCACHE_RA_BUFFER=49152 Yours, Chris. > -----Original Message----- > From: Testbed Support for GridPP member institutes > [mailto:[log in to unmask]] On Behalf Of Davies, Brian > (STFC,RAL,ESC) > Sent: 02 September 2009 09:52 > To: [log in to unmask] > Subject: Read ahead buffer size of 4kB for local access > > As discussed at UKI and Storage meetings, I would like UK T2 > sites intending to be in the ATLAS HC test to confirm that > their rfio/local access protocol read ahead buffer size is set to 4kB? > Thanks > Brian > > > -- > Scanned by iCritical. > > > -- Scanned by iCritical.