Installing Cassandra 2.1.x cluster in AWS with RAID0 array

quick-install-cassandra-aws.sh

# Installing Cassandra 2.1.x cluster in AWS with RAID0 array
# Prerequisites:
#   - CentOS 7 (x86_64) with Updates HVM (available on AWS Marketplace)
#   - Instance type with 2 hard drives for RAID0 array

CLUSTER_NAME="Drb Cluster"
SEED="10.0.0.11"
PRIVATE_IP=$(curl -s http://169.254.169.254/latest/meta-data/local-ipv4)

######### Create RAID0 Array ############
yum install mdadm -y

umount /dev/xvdb
yes | mdadm --create --verbose /dev/md0 --level=0 --name=MY_RAID --raid-devices=2 /dev/xvdb /dev/xvdc
mkfs.xfs -f -K /dev/md0

mkdir /var/lib/cassandra
mount /dev/md0 /var/lib/cassandra
#########################################

######### Install Cassandra #############
cat > /etc/yum.repos.d/datastax.repo <<EOF
[datastax]
name = DataStax Repo for Apache Cassandra
baseurl = http://rpm.datastax.com/community
enabled = 1
gpgcheck = 0
EOF

yum install -y java-1.8.0-openjdk
yum install -y dsc21.noarch

sed  -i -e "s/cluster_name: 'Test Cluster'/cluster_name: '$CLUSTER_NAME'/g" /etc/cassandra/conf/cassandra.yaml
sed  -i -e "s/- seeds: \"127.0.0.1\"/- seeds: \"$SEED\"/g" /etc/cassandra/conf/cassandra.yaml
sed  -i -e "s/listen_address: localhost/listen_address: $PRIVATE_IP/g" /etc/cassandra/conf/cassandra.yaml
sed  -i -e "s/rpc_address: localhost/rpc_address: $PRIVATE_IP/g" /etc/cassandra/conf/cassandra.yaml
sed  -i -e "s/endpoint_snitch: SimpleSnitch/endpoint_snitch: Ec2Snitch/g" /etc/cassandra/conf/cassandra.yaml

/etc/init.d/cassandra start
#########################################

Nice.