maketr

   1 #!/bin/sh
   2 #
   3 # Example script to make a transaction log file
   4 # Must be run as root. Remember to chown the file afterwards
   5
   6 # Insert the name of a tarfile here
   7 tarfile=/home/amb/iptables/iptables_1.4.4.orig.tar.gz
   8 tmpnam=`mktemp`
   9 conffile=${tmpnam}.conf
  10 pidfile=${tmpnam}.pid
  11 output=`pwd`/output.tr
  12
  13 ulimit -c unlimited
  14
  15 cat >${conffile} <<EOF
  16 [generic]
  17 [export1]
  18         exportname = $tmpnam
  19         transactionlog = $output
  20         flush = true
  21         fua = true
  22         rotational = true
  23 EOF
  24 ./nbd-server -C ${conffile} -p ${pidfile} &
  25 PID=$!
  26 sleep 1
  27 dd if=/dev/zero of=${tmpnam} bs=1M count=50
  28 ./nbd-client -N export1 127.0.0.1 /dev/nbd0
  29 mkfs.ext3 /dev/nbd0
  30 mount -t ext3 -odata=journal,barrier=1 /dev/nbd0 /mnt
  31 (cd /mnt ; tar xvzf ${tarfile} ; sync) 2>&1 >/dev/null
  32 umount /mnt
  33 mount -t ext3 -odata=journal,barrier=1 /dev/nbd0 /mnt
  34 (cd /mnt ; tar cvzf /dev/null . ; sync) 2>&1 >/dev/null
  35 dbench -D /mnt 1 &
  36 sleep 10
  37 killall dbench
  38 sleep 2
  39 killall -KILL dbench
  40 sync
  41 umount /mnt
  42 ./nbd-client -d /dev/nbd0
  43 if [ -f ${pidfile} ]
  44 then
  45         kill `cat ${pidfile}`
  46         rm -f ${pidfile}
  47 else
  48         kill $PID
  49 fi
  50 rm -f $tmpnam ${conffile}
  51 ls -la ${output}