Jka at 18:52, 10 October 2007

2007-10-10T18:52:42Z

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This is a script that I wrote in order to start and stop a lustre server.

<pre>
#!/bin/bash
#
# luster-server This shell script takes care of starting and stopping
# a Lustre server.
#
# chkconfig: 345 27 73
#
# description: Lustre is a parallel filesystem.

# Source function library.
. /etc/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0

RETVAL=0
LUSTRE_HOME=/opt/lustre/1.6.2
MDT_TARGET=/lustre/mri/mdt0
LUSTRE_MDT=/dev/sda
E2_HOME=/opt/e2fsck
OST_LV="f2c0l0 f2c0l1 f2c1l0 f2c1l1 f3c0l0 f3c0l1 f3c1l0 f3c1l1"

start() {
action $"Loading Lustre lnet module: " modprobe lnet
action $"Starting nids: " ${LUSTRE_HOME}/sbin/lctl network up
action $"Mounting MDT: " mount -t lustre $LUSTRE_MDT $MDT_TARGET
for LV in $OST_LV
do
if [ -d /lustre/`${E2_HOME}/sbin/e2label /dev/${LV}/lv-${LV}` ]; then
mount -t lustre /dev/$LV/lv-$LV /lustre/`${E2_HOME}/sbin/e2label /dev/${LV}/lv-${LV}`
else
mkdir /lustre/`${E2_HOME}/sbin/e2label /dev/${LV}/lv-${LV}`
mount -t lustre /dev/$LV/lv-$LV /lustre/`${E2_HOME}/sbin/e2label /dev/${LV}/lv-${LV}`
fi
done
}

stop() {
for LV in $OST_LV
do
umount /lustre/`${E2_HOME}/sbin/e2label /dev/${LV}/lv-${LV}`
done
umount $MDT_TARGET
action $"Unconfiguring LIDS: " ${LUSTRE_HOME}/sbin/lctl network unconfigure
${LUSTRE_HOME}/sbin/lctl modules | awk '{print $2}' | xargs rmmod
action $"Removing lnet modules: "
}

# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
restart|reload)
stop
start
RETVAL=$?
;;
*)
echo $"Usage: $0 {start|stop|restart}"
exit 1
esac

exit $RETVAL
</pre>

Lustre-server - Revision history

Jka at 18:52, 10 October 2007