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13.3. Methods

13.3.1. Creating a New Storage Connection
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Creating a new storage connection requires a POST request.
It is possible to create a new storage connection without adding a storage domain. The host id or name is optional; providing it will attempt a connection to the storage via the host.

Example 13.2. Creating a New Storage Connection

POST /ovirt-engine/api/storageconnections HTTP/1.1
Accept: application/xml
Content-type: application/xml

<storage_connection>
   <type>nfs</type>
   <address>domain.example.com</address>
   <path>/export/storagedata/username/data</path>
   <host>
     <name>Host_Name</name>
   </host>
</storage_connection>
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13.3.2. Deleting a Storage Connection
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Deleting a storage connection requires a DELETE request. A storage connection can only be deleted if neither storage domain nor LUN disks reference it.
The host name or id is optional; providing it unmounts the connection from that host.

Example 13.3. Deleting Storage Connection

DELETE /ovirt-engine/api/storageconnections/Storage_Connection_ID HTTP/1.1
Accept: application/xml
Content-type: application/xml

<host>
  <name>Host_Name</name>
</host>
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13.3.3. Updating a Storage Connection
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Updating an existing storage connection requires a PUT request. The storage domain must be in either maintenance mode or unattached to successfully update the connection.
Providing the host name or id is optional; if provided, the host attempts a connection to the updated storage details.

Example 13.4. Updating a Storage Connection

PUT /ovirt-engine/api/storageconnections/Storage_Connection_ID HTTP/1.1
Accept: application/xml
Content-type: application/xml

<storage_connection>   
  <address>updated.example.domain.com</address>
  <host>
      <name>Host_name</name>
   </host>
</storage_connection>
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13.3.4. Updating an iSCSI Storage Connection
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Updating an existing iSCSI storage connection requires a PUT request. An iSCSI storage domain must be in maintenance mode or unattached to successfully update the connection.

Example 13.5. Updating a Storage Connection

PUT /ovirt-engine/api/storageconnections/Storage_Connection_ID HTTP/1.1
Accept: application/xml
Content-type: application/xml

<storage_connection>   
  <port>3456</port>
</storage_connection>
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13.3.5. Adding New Storage Domain with Existing Storage Connection
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Adding a new storage domain with existing storage connection requires a POST request. This is only applicable with file-based storage domains: NFS, POSIX, and local.

Example 13.6. Adding a New Storage Domain with Existing Storage Connection

POST /ovirt-engine/api/storagedomains HTTP/1.1
Accept: application/xml
Content-type: application/xml

<storage_domain>
  <name>New_Domain</name>
  <type>data</type>
 <storage id="Storage_Connection_ID"/>
  <host>
    <name>Host_Name</name>
  </host>
</storage_domain>
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13.3.6. Attaching an Additional Storage Connection to iSCSI Storage
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Attaching an additional storage connection to an iSCSI storage domain requires a POST request.

Example 13.7. Attaching an Additional Storage Connection to iSCSI Storage

POST /ovirt-engine/api/storagedomains/iSCSI_Domain_ID/storageconnections HTTP/1.1
Accept: application/xml
Content-type: application/xml

<storage_connection id="Storage_Connection_ID">
</storage_connection>
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13.3.7. Detaching a Storage Connection from iSCSI Storage
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Detaching a storage connection from an iSCSI storage domain requires a DELETE request.

Example 13.8. Detaching a Storage Connection from iSCSI Storage

DELETE /ovirt-engine/api/storagedomains/iSCSI_Domain_ID/storageconnections/Storage_Connection_ID HTTP/1.1
Accept: application/xml
Content-type: application/xml
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13.3.8. Defining Credentials to an iSCSI Target
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When an iSCSI storage domain is added using the Administration Portal, only a single user name and password can be specified for that domain. However, some setups require that each host in the cluster use a separate user name and password. Specific credentials can be applied to each iSCSI target per host by using the storageconnectionextensions element.

Example 13.9. Defining credentials to an iSCSI target

POST /ovirt-engine/api/hosts/2ab5e1da-b726-4274-bbf7-0a42b16a0fc3/storageconnectionextensions HTTP/1.1
Accept: application/xml
Content-type: application/xml

<storageconnectionextension>
    <target>iqn.2010.05.com.example:iscsi.targetX</target>
    <username>jimmy</username>
    <password>p@55w0Rd!</password>
</storageconnectionextension>
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