Difference between revisions of "Counting House DAQ"

Revision as of 12:55, 12 April 2013

This page serves to provide information on how the Data Acquisition Group has set up the Hall D Counting House DAQ for use in testing the CODA 3.0 software and new pipeline electronics.

PXE booting for Diskless Controllers

To facilitate the booting and diskless environment for the VME Controllers, these packages were installed onto gluon20:

• dhcp
• tftp-server
• syslinux

All supporting configuration files and diskless environment are found here:

/halldfs1/diskless

with subdirectories:

• CentOS5 - Contains the CentOS 5 operating system that is mounted READONLY (root), as well as "snapshot" directories for individual controllers to provide read/write files for the operating system configuration.
• tftpboot - Contains the directory that is served by the tftp-server
• conf - Configuration files for tftp and dhcp. On gluon20 softlinks are made to these files where they are needed:

/etc/dhcp/dhcpd.conf -> /halldfs1/diskless/conf/dhcpd.conf
/etc/xinetd.d/tftp -> /halldfs1/diskless/conf/tftp

DHCP

dhcpd.conf

This configuration file was organized as follows:

All clients setup with these defaults:

ddns-update-style ad-hoc;
option domain-name "jlab.org acc.jlab.org";
option domain-name-servers 129.57.32.100, 129.57.32.101;

subnet 129.57.172.0 netmask 255.255.252.0 {
       option routers 129.57.172.1;
}

Group all PXE booting clients here (with example showing entry for rocgtest0):

# PXE bootable hosts
group
{
      # Common pxelinux.0 file, common tftp-server (gluon20)
      filename "linux-diskless/pxelinux.0";
      next-server 129.57.172.28; 

      host rocgtest0
      { # S1-3-TOP
        hardware ethernet 00:20:ce:f6:03:f6;
        fixed-address 129.57.175.100;
      }
}

tftp

CentOS 5.x

Crate Configuration