阿里云Ecs购置

阿里云Ecs链接

购买的配置基本算是最低的配置了，如下图所示。一方面因为博主日后需要在这个集群上搭建一个hadoop集群使用，另一方面需要搭建一些集群磁盘方面的监控，所以需要两个磁盘，如果你只是搭建一个博客完全不需这两个磁盘的。

购买后会给你一个内网IP和一个外网IP，外网IP留作ssh登录使用，配置像hadoop集群的话需要使用内网IP。

登录阿里云Ecs

我通过的是Xshell登录的阿里云Ecs。

上去的时候主机名字是Ecs的序号，看着不爽的可以修改一下，我反正是修改了。

修改主机名

[root@why /]vi /etc/sysconfig/network
[root@why /]vi /etc/hosts

修改这两个的位置的hostname即可。

重启一下电脑。

[root@why /]init 6

检查一下磁盘是否挂载

[root@why /]# df -h

磁盘没有挂载

开始格盘挂载

查看一下磁盘名字

[root@why /]# fdisk -l

开始格式化磁盘

[root@why /]# mkfs.ext4 /dev/xvdb 
mke2fs 1.41.12 (17-May-2010)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
5242880 inodes, 20971520 blocks
1048576 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
640 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks: 
    32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 
    4096000, 7962624, 11239424, 20480000

Writing inode tables: done                            
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 28 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
[root@why /]# echo $?
0
[root@why /]# mkfs.ext4 /dev/xvdc
mke2fs 1.41.12 (17-May-2010)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
5242880 inodes, 20971520 blocks
1048576 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
640 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks: 
    32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 
    4096000, 7962624, 11239424, 20480000

Writing inode tables: done                            
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 22 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
[root@why /]# echo $?
0

磁盘挂载

一个data目录用作数据存放，一个program目录用作程序目录。

[root@why /]# cd /mnt/
[root@why mnt]# ll
total 0
[root@why mnt]# mkdir data
[root@why mnt]# mkdir program
[root@why mnt]# mount /dev/xvdb /mnt/program/
[root@why mnt]# mount /dev/xvdc /mnt/data/
[root@why mnt]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/xvda1       40G  1.5G   36G   4% /
tmpfs           498M     0  498M   0% /dev/shm
/dev/xvdb        79G   56M   75G   1% /mnt/program
/dev/xvdc        79G   56M   75G   1% /mnt/data

设置磁盘开机挂载

[root@why mnt]# vi /etc/fstab
#
# /etc/fstab
# Created by anaconda on Thu Aug 14 21:16:42 2014
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=94e4e384-0ace-437f-bc96-057dd64f42ee / ext4 defaults,barrier=0 1 1
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
/dev/xvdb               /mnt/program            ext4    defaults        0 0
/dev/xvdc               /mnt/data               ext4    defaults        0 0

最后看一下配置