>>>>> Ben Still writes:
> I am testing the channels RAL->VICTORIALCG2 and am seeing some
> interesting phenomena. The four transfers seem to either have rate ~
> 450kbs or ~2Mbps seemingly quantised.
Hi Ben,
I looked at these transfers, and those involving two RAL diskservers
(gdss129 and gdss99) were slow, not exceeding 500kB/s. The transfers at
up to 2MB/s were from a different (newer) generation of servers
(gdss336, gdss337, and gdss339). Someone from the CASTOR team should be
able to say whether this is the expected performance, or down to tuning,
contention with other VOs, or some other factor.
> I was just wondering what the settings were for this channel and if
> it is possible for us to have the ability to modify them in order to
> optimise the transfers.
You can see the channel settings at:
http://lcgwww.gridpp.rl.ac.uk/cgi-bin/fts-mon/fts-mon.pl?q=voshares&p=day&v=t2k.org
Please send requests to change these to [log in to unmask]
Thanks,
Matt
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