umount and clean file system

umount_disks.sh

#!/bin/bash

cp /etc/fstab /etc/fstb.original

FDISKLIST=`fdisk -l|grep "Disk /dev/xvd"|awk '{print $2}'|awk -F: '{print $1}'|grep -v /dev/xvda`

for DISK in `echo $FDISKLIST`
do
   DISKNAME=`echo $DISK|awk -F/ '{print $3}'`
   umount -f $DISK1 || /bin/true
   rm -rf /disk/$DISKNAME || /bin/true
   wipefs -f -a $DISK || /bin/true

   sed -i "/$DISKNAME/d" /etc/fstab

done