云主机挂载云硬盘的操作姿势

最新推荐文章于 2025-04-25 09:12:35 发布

yongwan5637

最新推荐文章于 2025-04-25 09:12:35 发布

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分类专栏：云计算文章标签： OpenStack 卷云计算

本文链接：https://blog.youkuaiyun.com/yongwan5637/article/details/92088473

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本文详细介绍了如何在云主机上挂载并操作云硬盘。首先，准备有公网IP的云主机并登录，然后创建100G云硬盘。接着，通过fdisk进行磁盘分区和格式化为ext3文件系统。最后，使用dd命令快速生成大文件，展示了挂载云硬盘在实际应用中的便利性。

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1. 准备一台有公网IP的云主机，并通过Xshell或SecureCRT等终端模拟软件登录

~$ nova list
+--------------------------------------+---------------------------------+--------+------------+-------------+----------------------------------+
| ID                                   | Name                            | Status | Task State | Power State | Networks                         |
+--------------------------------------+---------------------------------+--------+------------+-------------+----------------------------------+

| 72aefa0b-f199-4ddb-b721-9e94f233ced8 | vm-demo  | ACTIVE | -          | Running     | cloud-net-check-vpc=192.168.96.2 |

+--------------------------------------+---------------------------------+--------+------------+-------------+----------------------------------+

2. 创建100G云硬盘

~$  cinder create  --availability_zone yiqiao1 --volume_type  ceph_sas --display_name volume-test 100
+---------------------+--------------------------------------+
|       Property      |                Value                 |
+---------------------+--------------------------------------+
|     attachments     |                  []                  |
|  availability_zone  |               yiqiao1                |
|       bootable      |                false                 |
|      created_at     |      2019-06-15T08:08:09.164567      |
| display_description |                 None                 |
|     display_name    |             volume-test              |
|          id         | c2a0f8dc-a1a4-4912-a0a4-990b3916e5a7 |
|       metadata      |                  {}                  |
|         size        |                 100                  |
|     snapshot_id     |                 None                 |
|     source_volid    |                 None                 |
|        status       |               creating               |
|     volume_type     |               ceph_sas               |
+---------------------+--------------------------------------+

# 云硬盘为available状态时代表可挂载
(my_new_env) likailiang@pubbeta1-nova10:~$ nova volume-list 
+--------------------------------------+-----------+---------------------------+------+-------------+--------------------------------------+
| ID                                   | Status    | Display Name              | Size | Volume Type | Attached to                          |
+--------------------------------------+-----------+---------------------------+------+-------------+--------------------------------------+
| c2a0f8dc-a1a4-4912-a0a4-990b3916e5a7 | available | volume-test               | 100  | ceph_sas    |                                      |
+--------------------------------------+-----------+---------------------------+------+-------------+--------------------------------------+

3.挂载云硬盘到云主机

3.1 挂载云硬盘之前云主机外围设备的分区状况

root@virtio-scsi-nodiscard-ceph-sas:~# fdisk -l 
Disk /dev/sda: 20 GiB, 21474836480 bytes, 41943040 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x68f54af3

Device     Boot Start      End  Sectors Size Id Type
/dev/sda1  *     2048 41943006 41940959  20G 83 Linux


Disk /dev/sdc: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000
root@virtio-scsi-nodiscard-ceph-sas:~#