Experiment Software
Experiment software is typically installed by a privilaged user via a grid job. The user will have write access to the appropriate part of the software installation area, allowing them to add to and amend software at their convenience.
epgce3
Experiment software is installed in the
/egee/soft/
directory. The original directory resides on a 177 GB disk local to
epgce3
. This is no longer large enough, so software is in the process of being moved to a 4.6 TB disk (
/disk/f15d/
) on
epgsr1
.
Moving software to epgsr1
It is a simple task to copy the software available to the
epgce3
WNs to
epgsr1
:
- Mount
epgce3:/egee/soft
somewhere convenient on epgsr1
(for example /tmp/soft
)
- Copy the software from
epgsr1:/tmp/soft
to epgsr1:/egee/soft
- Unmount
epgce3:/egee/soft
from WNs and mount epgsr1:/egee/soft
instead
- Clean up
Mount epgce3 on epgsr1
Start by making sure that
epgsr1
has permission to mount
epgce3:/egee/soft
by editing the files
epgce3:/etc/exports
and
epgce3:/etc/hosts.allow
. In order for the export rules to be updated the command
exportfs -r
must be issued.
epgce3:/egee/soft
will now be available for mounting on
epgsr1
with the following command:
mount epgce3:/egee/soft /tmp/soft
It's availability can be confirmed with a simple
df -h
Copy software
Very simple, use
cp -a
to copy the appropriate directories from one disk to another. Note that
scp
should not be used because this does not preserve soft links!
Mount new filesystem on WNs
epgce4
Complete mystery... for now!
--
ChristopherCurtis - 09 Jul 2009
Topic revision: r1 - 09 Jul 2009 - _47C_61UK_47O_61eScience_47OU_61Birmingham_47L_61ParticlePhysics_47CN_61christopher_32curtis