CentOS下挂载EBS
EBS(Elastic Block Store)是Amazon EC2实例的持久性数据块级存储卷。
在简单介绍一下,购买EBS以后如何挂载到EC2。
环境:CentOS6.5
EBS:300GB
CentOS6.5下挂载EBS
1. 先用fdisk命令查看Device名。
# fdisk -l Disk /dev/xvdg: 40.3 GB, 40256929792 bytes 255 heads, 63 sectors/track, 4894 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/xvde: 8589 MB, 8589934592 bytes 255 heads, 63 sectors/track, 1044 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/xvdf: 322.1 GB, 322122547200 bytes 255 heads, 63 sectors/track, 39162 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
根据容量判断,/dev/xvdf是购买的EBS。
2. 创建ext4文件系统
# mkfs -t ext4 /dev/xvdf
3. 创建目录及挂载
# mkdir /data
# mount /dev/xvdf /data
4. 确认
# df -h Filesystem Size Used Avail Use% Mounted on /dev/xvde 7.9G 650M 6.9G 9% / tmpfs 7.4G 0 7.4G 0% /dev/shm /dev/xvdf 296G 191M 281G 1% /data
5. 修改/etc/fstab
在/etc/fstab文件的最后进行添加。
# vi /etc/fstab /dev/xvdf /data ext4 defaults 0 0
6. 重启系统进行确认
# shutdown -r now # df -h Filesystem Size Used Avail Use% Mounted on /dev/xvde 7.9G 651M 6.9G 9% / tmpfs 7.4G 0 7.4G 0% /dev/shm /dev/xvdf 296G 191M 281G 1% /data