gistfile1.txt

# cat mkdisk.sh
#!/bin/bash

for i in sda sdb sdc sdd sde sdf;do
echo get disk $i info
content=`parted -s /dev/$i print`
if echo "$content" | fgrep 'unrecognised disk label';then
echo "mklabel for /dev/$i"
parted -s /dev/$i mklabel gpt
fi

if [ `parted -s /dev/$i print| wc -l` -gt 7 ];then
echo "$content" | awk 'flag==1{if($1~/[0-9]+/){print $1}}/Number/{flag=1}'|xargs -I @ parted -s /dev/$i rm @
parted -s /dev/$i mklabel gpt
fi

if [ "$i" == "sdf" ];then
echo  for mapreduce
parted -s /dev/$i "mkpart mapred ext4 0 -1"
else
echo for datanode
parted -s /dev/$i "mkpart datanode ext4 0 -1"
fi
mkfs.ext4 -F /dev/$i
done