Linux

f_Mount() {
        #umount /dev/shm
        #umount /media/ephemeral0
        rm -rf /mnt/*
        umount /dev/xvdb
        umount -f /mnt
        #umount -f /dev/md0

        pvcreate /dev/xvdb
        vgcreate ephemeral /dev/xvdb
        if [ -b "/dev/xvdc" ]; then
                pvcreate /dev/xvdc
                vgextend ephemeral /dev/xvdc
        fi
        lvcreate -l 100%FREE -nmnt ephemeral
    #lvcreate -L 300G  -nmnt ephemeral
        mkfs -t ext4 /dev/ephemeral/mnt
        mount /dev/ephemeral/mnt /mnt/
}
f_Mnt(){
  if [ -d /var/cache ]
  then
    mv /var/cache /mnt
  fi
  rm -f /var/cache
  mkdir -p /mnt/cache
  ln -s /mnt/cache /var

mkdir -p /mnt/phpCron
mkdir -p /mnt/log/nginx
  mkdir -p /mnt/log

  if [ -d /var/log/td-agent ]
  then
    mv /var/log/td-agent /mnt/log/
  fi
  rm -f /var/log/td-agent
  mkdir -p /mnt/log/td-agent
  chown td-agent:td-agent /mnt/log/td-agent
  chmod 777 /mnt/log/td-agent
  ln -s /mnt/log/td-agent /var/log
}
f_Mount
f_Mnt