2.3. escsHost¶
This machine is mainly used as a virtualization platform, supplying the accessory machines escsCore2 and escsRemote via VirtualBox. In the future this node is intended to run also an http server for documentation and application deployment.
Configuration files can be found on the svn repo at:
http://svn.med.ira.inaf.it/repos/escsconf/escsHost
The machine main configuration parameters are the following:
| PARAMETER | VALUE |
|---|---|
| hardware | IBM System x3250 M4 |
| CPU | Intel(R) Xeon(R) CPU E3-1220 V2 @ 3.10GHz (Quad) |
| RAM | 8GB |
| OS | Scientific Linux 5.3 i386 (32 bit) |
| Kernel | 2.6.18-128.1.1.el5PAE |
| hostname | escsHost |
| eth0 | 192.167.189.101 |
| eth1 | 192.168.1.101 |
| eth2 | 192.168.51.101 |
2.3.1. OS installation¶
EscsHost is installed on a 500GB hard disk so partitioned:
[root@escsHost /]# fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 2690 21503002+ 83 Linux
/dev/sda3 2691 3710 8193150 82 Linux swap / Solaris
/dev/sda4 3711 60801 458583457+ 5 Extended
/dev/sda5 3711 6387 21502971 83 Linux
/dev/sda6 6388 7024 5116671 83 Linux
/dev/sda7 7025 60801 431963721 83 Linux
and:
[root@escsHost /]# mount
/dev/sda2 on / type ext3 (rw)
/dev/sda7 on /data type ext3 (rw)
/dev/sda6 on /tmp type ext3 (rw)
/dev/sda5 on /var type ext3 (rw)
/dev/sda1 on /boot type ext3 (rw)
During the installation process packages are installed directly from the installation CD and we selected KDE desktop environment, Developer tools including gcc, g++, make and kernel headers. We removed every accessory package related to office and productivity work.
2.3.2. Additional software¶
Additional software packages are installed as described in Additional software and the necessary packages are:
- gpfs
- e1000
- e1000e
Apart from these packages we need to install VirtualBox, we can find the .rpm package of the installed version in /root/software directory on the svn repo but any version should be good.
2.3.3. VirtualBox Services¶
Two virtual machines named escsRemote and escsCore2 are configured for starting up at boot time, we report escsCore2 init script as an example:
[root@escsHost /]# less /etc/init.d/vbox_escsCore2
#!/bin/sh
# vbox_escsCore2 Startup script for VirtualBox Virtual Machines
#
# chkconfig: 345 98 02
# description: Manages escsCore2 VirtualBox machine
# processname: vbox_escsCore2
#
# pidfile: /var/run/vboxcontrol/vbox_escsCore2.pid
#
# Source function library.
if [ -f /etc/init.d/functions ] ; then
. /etc/init.d/functions
elif [ -f /etc/rc.d/init.d/functions ] ; then
. /etc/rc.d/init.d/functions
else
exit 1
fi
########################################################################
# CONFIGURATION
NAME="escsRemote"
VBOXMANAGE="VBoxManage -nologo"
########################################################################
# FUNCTIONS
log_action_msg() {
echo $1
}
wait_for_closing() {
ISRUNNING=`$VBOXMANAGE showvminfo $NAME |grep "^State:\s*running" > /dev/null &&
echo "RUNNING"`
if [ ! -z "$ISRUNNING" ]; then
sleep 8
wait_for_closing
fi
}
########################################################################
# RUN
case "$1" in
start)
log_action_msg "Starting VM: $NAME ..."
$VBOXMANAGE startvm $NAME -type headless
RETVAL=$?
touch /var/lock/subsys/$NAME
;;
stop)
log_action_msg "Shutting down VM: $VM ..."
$VBOXMANAGE controlvm $NAME acpipowerbutton
rm -f /var/lock/subsys/$NAME
wait_for_closing
;;
status)
$VBOXMANAGE showvminfo $NAME | grep "State"
;;
*)
echo "Usage: $0 {start|stop|status}"
exit 3
esac
exit 0