LSC Data Grid (6 sources) Load


General Information
LSC LIGO Scientific Collaboration
LIGO-Hanford Observatory
LIGO-Livingston Observatory

DataGrid Details

What is LSC DataGrid?
LDG Clusters Usage [Ganglia]
Available Data per site
Grid Service Details [Monitoring]

User Manual

How to get started
Install Data Grid Client
Getting Certificates
Account Request
SSH Login Portal
CVS/Bug Account Request
Request Software changes to SCCB

Admin Manual [(*) = optional]

Install DataGrid Server
Get server certificates
Configure/deploy Condor
Include site into Grid Monitoring
Graceful Condor shutdown
(*) Configure/deploy CondorView
(*) Configure Condor Flocking
(*) CondorC on LDG
LAMS / VOMS Admin [LSC internal]
Syracuse X4500 wiki [passwd required]
Edit these web pages

Request/Bug Tracking

Request Tracking System [RT]
LDG trouble ticket system


Reference O/S Schedule

LDG Collaborations

Condor-LIGO biweekly telecon
Globus-LIGO monthly telecon
LIGO VO in Open Science Grid [OSG]
Archival GriPhyN-LIGO WG pages



Quick Introduction to LSC DataGrid Client Tools

Note: If you have questions after reading below, please send mail to the LDG Help Desk.

Creating a grid proxy

Once at the beginning of each session you should do create a grid proxy by running the following command:

$ grid-proxy-init

When prompted for your certificate pass phrase enter it to generate a proxy certificate, used to authenticate around the LSC DataGrid.

Grid OpenSSH

Assuming you have a valid grid certificate proxy then you can just ssh into one of the LSC DataGrid server sites using the grid enabled ssh client without being prompted for a password:

$ gsissh
[skoranda@hydra ]$

Note that you can also use this OpenSSH client to SSH to any host in the normal way using a password.

Grid FTP

The GridFTP client is globus-url-copy. To copy a file from a remote GridFTP server do something like this:

$ globus-url-copy gsi file:/home/skoranda/foo

To put a file onto a GridFTP server do something like this:

$ globus-url-copy file:/home/skoranda/foo gsi

If the file is large add the following arguments to use multiple data channels and large TCP windows:

-p 4 -tcp-bs 1048576 -vb

For more details see the globus-url-copy help page:

$ globus-url-copy -help
Supported by the National Science Foundation. Any opinions, findings and conclusions or recomendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF)