[Halld-offline] mounting SRM as a fuse volume

[Richard Jones]

Offliners,

One interesting option is available to those who might want to start using the new high-statistics pythia sample we have created on the OSG in the data challenge.  You can simply mount the grid filesystem on your local linux box using FUSE.  Fuse is a feature of the more recent linux kernels to allow you to do mount/umount of remote filesystems of various kinds without root privs.  Some sysadmins may block this, but if it is your own desktop/laptop there should not be a problem.

If you have fuse mount privs on your local box, you can simply mount any grid directory using the tools developed for the LHC grid, and then access the files as if they were on  your local disk.  An underlying transport layer makes the data connections over gridftp, so it is quite fast and efficient, depending of course on your network speed.  I just tested this on a Centos 5 box, and it works. I could ls the filesystem and then browse inside the rest data files using hddm-xml.

-Richard J.

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