Poor man's disk mirroring

nimysun

#!/bin/ksh
#
# Orf Gelbrich - orf@gelbrich.com
# 7/6/2001
# Script mirrors c0t0d0s0 (disk1) to c0t1d0s0 (disk2)
# Script mirrors c0t0d0s1 (disk1) to c0t1d0s1 (disk2)
# Script mirrors c0t0d0s3 (disk1) to c0t1d0s3 (disk2)
# Script mirrors c0t0d0s4 (disk1) to c0t1d0s4 (disk2)
#
export f1="/usr/local/etc/mirrorbox.log"
export line="------------------------------------------------------------------"
#
# set up the log file
#
echo $line  >> $f1
date >> $f1
echo $line  >> $f1
#
# find out which disk we are on
#
export disk1=`df -k |  grep c0t | head -1 | awk '{ FS="/"} { print $4}' | awk '{print $1}'`
echo "We are on this disk : $disk1" >> $f1
if [ $disk1 != "c0t0d0s0" ] ; then
        echo "Error this is not disk 1 = $disk1" >> $f1
        exit 1
fi
#
# copy the two partitons
#
dd if=/dev/dsk/c0t0d0s0 of=/dev/dsk/c0t1d0s0 bs=524288   2>&1 >> $f1 2>&1
dd if=/dev/dsk/c0t0d0s1 of=/dev/dsk/c0t1d0s1 bs=524288   2>&1 >> $f1 2>&1
dd if=/dev/dsk/c0t0d0s3 of=/dev/dsk/c0t1d0s3 bs=524288   2>&1 >> $f1 2>&1
dd if=/dev/dsk/c0t0d0s4 of=/dev/dsk/c0t1d0s4 bs=524288   2>&1 >> $f1 2>&1
#
# copy the boot block to the spare disk
#
cd /usr/platform/`/usr/bin/uname -i`/lib/fs/ufs >> $f1
installboot bootblk /dev/rdsk/c0t1d0s0 >> $f1
#
# unmount the file systems
#
umount /mnt1 >> $f1
umount /mnt2 >> $f1
umount /mnt3 >> $f1
umount /mnt4 >> $f1
#
# run fsck on the spare file systems
#
fsck -y /dev/dsk/c0t1d0s0 >> $f1
fsck -y /dev/dsk/c0t1d0s1 >> $f1
fsck -y /dev/dsk/c0t1d0s3 >> $f1
fsck -y /dev/dsk/c0t1d0s4 >> $f1
#
# mount the spare disk slice 0 and 3
#

if [ ! -d /mnt1 ]; then
        mkdir /mnt1 >> $f1
fi
if [ ! -d /mnt2 ]; then
        mkdir /mnt2 >> $f1
fi
if [ ! -d /mnt3 ]; then
        mkdir /mnt3 >> $f1
fi
if [ ! -d /mnt4 ]; then
        mkdir /mnt4 >> $f1
fi
mount -f ufs /dev/dsk/c0t1d0s0 /mnt1 >> $f1
mount -f ufs /dev/dsk/c0t1d0s1 /mnt2 >> $f1
mount -f ufs /dev/dsk/c0t1d0s3 /mnt3 >> $f1
mount -f ufs /dev/dsk/c0t1d0s4 /mnt4 >> $f1
#
# fix the vfstab file on disk2  (t0 -> t2)
#
cd /mnt1/etc >> $f1
cp vfstab vfstab.old >> $f1
sed 's/t0/t1/g' vfstab > vfstab.new
cp vfstab.new vfstab >> $f1
cd /
#
# close out the log file
#
echo $line  >> $f1
date >> $f1
echo $line  >> $f1

exit 0



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