[root@h002 ~]# fdisk -l
[root@h002 ~]# df -h
[root@h002 ~]# ls /dev/xv*
[root@h002 ~]# ls -alrt /dev/xv*
[root@h002 ~]# fdisk /dev/xvdb
Command (m for help): p
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-10443, default 1): <-- Enter
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-10443, default 10443): <-- Enter
Using default value 10443
Command (m for help): t
Selected partition 1
Hex code (type L to list codes): 8e
Changed system type of partition 1 to 8e (Linux LVM)
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@h002 ~]# fdisk -l
[root@h002 ~]# pvcreate /dev/xvdb1
[root@h002 ~]# vgcreate DataVG /dev/xvdb1
[root@h002 ~]# vgdisplay
[root@h002 ~]# lvdisplay
[root@h002 ~]# lvcreate -L 80g -n data00 DataVG // 숫자 80 과 00 임
[root@h002 ~]# lvcreate -l 20479 -n data00 DataVG
[root@h002 ~]# lvdisplay
[root@h002 ~]# df -h
[root@h002 ~]# fdisk -l
[root@h002 ~]# mkfs.ext4 /dev/DataVG/data00
[root@h002 ~]# mount /dev/DataVG/data00 /home/jacob/hdfs/
[root@h002 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root
18G 2.9G 14G 18% /
tmpfs 497M 0 497M 0% /dev/shm
/dev/xvda1 485M 52M 408M 12% /boot
/dev/mapper/DataVG-data00
79G 184M 75G 1% /home
[root@h002 ~]#
chmod 777 hdfs/
chown jacob hdfs/
[jacob@h001 hadoop]$ /etc/init.d/iptables stop