红帽全球峰会3.8. 实例：创建 NFS 数据存储
NFS 数据域就是附加到数据中心上的、一个导出的 NFS 共享，它为虚拟机镜像提供存储空间。创建新的存储域需要一个
POST 请求（包括了存储域的表述）发送到存储域集合的 URL。
在 Red Hat Enterprise Virtualization 3.6 以及更高的版本中，可以在存储域中默认启用“删除后清除数据”选项。您需要在
POST 请求中指定 <wipe_after_delete>。这个选项可以在域被创建后进行修改，但这不会改变那些已存在磁盘的“删除后清除数据”的设置。
例 3.8. 创建一个 NFS 数据存储域
请求：
POST /api/storagedomains HTTP/1.1
Accept: application/xml
Content-type: application/xml
<storage_domain>
<name>data1</name>
<type>data</type>
<storage>
<type>nfs</type>
<address>192.168.0.10</address>
<path>/data1</path>
</storage>
<host>
<name>hypervisor</name>
</host>
</storage_domain>
cURL 命令：
# curl -X POST -H "Accept: application/xml" -H "Content-Type: application/xml" \
-u [USER:PASS] --cacert [CERT] \
-d "<storage_domain><name>data1</name><type>data</type> \
<storage><type>nfs</type><address>192.168.0.10</address> \
<path>/data1</path></storage> \
<host><name>hypervisor</name></host></storage_domain>" \
https://[RHEVM Host]:443/api/storagedomains
API 创建了一个 NFS 数据存储域（名为
data1，带有一个 192.168.0.10:/data1 导出路径），并可以通过 hypervisor 主机访问存储域。API 同时返回新建存储域资源的以下表述。
结果：
HTTP/1.1 200 OK
Accept: application/xml
<storage_domain id="9ca7cb40-9a2a-4513-acef-dc254af57aac"
href="/api/storagedomains/9ca7cb40-9a2a-4513-acef-dc254af57aac">
<name>data1</name>
<link rel="permissions"
href="/api/storagedomains/9ca7cb40-9a2a-4513-acef-dc254af57aac/
permissions"/>
<link rel="files"
href="/api/storagedomains/9ca7cb40-9a2a-4513-acef-dc254af57aac/files"/>
<type>data</type>
<master>false</master>
<storage>
<type>nfs</type>
<address>192.168.0.10</address>
<path>/data1</path>
</storage>
<available>175019917312</available>
<used>27917287424</used>
<committed>10737418240</committed>
<storage_format>v1</storage_format>
<host id="0656f432-923a-11e0-ad20-5254004ac988"
href="/api/hosts/0656f432-923a-11e0-ad20-5254004ac988">
</storage_domain>
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