如何在Amazon AWS上申请EC2不再多说,很多前辈给出了教程,本文只说如何挂载那免费的30G EBS。我申请的一年的免费的32位Red Hat Enterprise Linux,详细参数:
Red Hat Enterprise Linux 6.4 - ami-80bbf3d2 (64-bit) / ami-9cbbf3ce (32-bit) Red Hat Enterprise Linux version 6.4, EBS-boot. Root device type: ebs Virtualization type: paravirtual
首先登陆『AWS管理控制台』 ,进入『EC2』 。
左侧树依次点击『ELASTIC BLOCK STORE』-『Volumes』,点击『Create Volume』创建一个新的volume。
按照AWS 免费套餐条款 ,每月有30 GB 的 EBS 可用。但也没必要最大额,够用即可。
Availability Zone要与你的主机实例在同一个区域,查看『INSTANCES』-『instances』列表中的Availability Zone选项。
创建完毕后,在左侧列表中选中右键Attach Volume,在Instances列表中选中你的Instance。在Device中输入设备名,如:/dev/sdf 。
接下来用putty登陆进你的云主机,不会不知道怎么做吧。
login as: ec2-user Authenticating with public key "imported-openssh-key" Last login: Thu Jan 2 21:10:51 2014 from 219.133.173.33 [ec2-user@ip-172-32-11-222 ~]$ df -h Filesystem Size Used Avail Use% Mounted on /dev/xvde1 6.0G 1.7G 4.2G 29% / none 298M 0 298M 0% /dev/shm
使用df -h 看到确实没有新建的volume,这是正常的,因尚未挂载。
[ec2-user@ip-172-32-11-222 /]$ df -T Filesystem Type 1K-blocks Used Available Use% Mounted on /dev/xvde1 ext4 6193088 1892740 4237736 31% / none tmpfs 305112 0 305112 0% /dev/shm
用df -T 查看当前系统的文件格式,为ext4。
[ec2-user@ip-172-32-11-222 /]$ mkfs.ext4 /dev/sdf mke2fs 1.41.12 (17-May-2010) Could not stat /dev/sdf --- No such file or directory The device apparently does not exist; did you specify it correctly?
尝试根据当前文件系统来格式化新加的volume,报错没有文件,找不到设备? 可是我新创建的volume明明就是/dev/sdf啊,这是为什么?
[ec2-user@ip-172-32-11-222 /]$ sudo fdisk -l Disk /dev/xvde1: 6442 MB, 6442450944 bytes 255 heads, 63 sectors/track, 783 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/xvdj: 10.7 GB, 10737418240 bytes 255 heads, 63 sectors/track, 1305 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000
用fdisk -l 命令看下设备名,居然名字是/dev/xvdj 。
[ec2-user@ip-172-32-11-222 /]$ sudo mkfs.ext4 /dev/xvdj 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 655360 inodes, 2621440 blocks 131072 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=2684354560 80 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 Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 21 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override.
格式化。下面创建挂载点,将新增的volumn挂在上。
[ec2-user@ip-172-32-11-222 /]$ sudo mkdir /mnt/ebs [ec2-user@ip-172-32-11-222 /]$ sudo mount /dev/xvdj /mnt/ebs [ec2-user@ip-172-32-11-222 /]$ df -h Filesystem Size Used Avail Use% Mounted on /dev/xvde1 6.0G 1.9G 4.1G 31% / none 298M 0 298M 0% /dev/shm /dev/xvdj 9.9G 151M 9.2G 2% /mnt/ebs
参考文献 amazon ec2 - boto and attaching a ebs to ec2 How to convert Amazon instance store EC2 to EBS based EC2 调整amazon EC2云主机的EBS启动磁盘大小 在EC2中使用EBS作为永久存储 在EC2中使用EBS作为永久存储 linux查看硬盘使用情况命令