NGData

Responsible Person

JosephAntony? ANU

Notes

NGData Notes

Technology Summary and Contents

NOTE: We will be moving to a NGData image based on VDT shortly. At present pciback issues are being ironed out to enable fast data transfers which do not involve Xen's bridging interface.

Features for the non-VDT version:

• Centos Linux 4.4
• Globus Toolkit 4.0.3 providing a GridFTP server
• gsi enabled OpenSSH?
• kernel configured for high performance TCP transfers
• data transfer testing tools

Install Instructions

The current version of the ngdata virtual machine is an RPM based installation based on the ng2 virtual machine.

NOTE: If you have an ngdata virtual machine not based on this RPM based installation you should start with a fresh install rather than trying to upgrade it.

• Build the basic Xen guest using the procedure shown in XenInstall
• Boot the machine and use scp to copy from another machine the rpm-based installation package for jdk1.5.0_xx where xx >= 08 (available at http://java.sun.com/javase/downloads/index.jsp).
• Install Java, then: export JAVA_HOME=/usr/java/jdk1.5.0_xx
• cd /etc/yum.repos.d
• wget http://vpac.org/grid/files/vpac.repo
• wget http://nf.apac.edu.au/grid/files/apacnf.repo
• yum install ngdata
• You will need to apply for and install APACGrid Certificates and make them accessible as indicated in Chapter 5 of the GT4 Admin Guide.
• Install the EUGridPMA? certificates using the procedure show here
• You should also run (in sequence) the scripts in /etc/cron.daily and /etc/cron.hourly to acquire current CRL and grid-mapfile entities.

Configuration Notes

• Mount your cluster's home and scratch filesystems so that paths are as they are defined in the HOME and USER_SCRATCH environment variables (see http://www.vpac.org/twiki/bin/view/APACgrid/EnvironmentVariables)
• Configure Xen to dedicate an internal network interface to this VM if it is NFS mounting filesystems.
• Configure Xen to dedicate an external network interface to this VM which is associated with its main hostname.
• Get the ng2 VM at your site to use this for data staging by editing /usr/local/globus/etc/gram-service/globus_gram_fs_map_config.xml. See http://www.globus.org/toolkit/docs/4.0/execution/wsgram/admin-index.html#s-wsgram-Interface_Config_Frag-filesysmap