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12.10. Actions

12.10.1. Importing an Existing Storage Domain
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Note

The export storage domain is deprecated. Storage data domains can be unattached from a data center and imported to another data center in the same environment, or in a different environment. Virtual machines, floating virtual disk images, and templates can then be uploaded from the imported storage domain to the attached data center. See the Importing Existing Storage Domains section in the Red Hat Virtualization Administration Guide for information on importing storage domains.
The API provides a user with the ability to remove an ISO or Export storage domain from one Red Hat Virtualization Manager instance without re-formatting the underlying storage and import it into another instance. Importing is achieved similarly to adding a new storage domain, except the name is not specified.

Example 12.16. Importing an existing export storage domain

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

<storage_domain>
    <type>export</type>
    <storage>
        <type>nfs</type>
        <address>172.31.0.6</address>
        <path>/exports/RHEVX/export-domain</path>
    </storage>
    <host id="2ab5e1da-b726-4274-bbf7-0a42b16a0fc3"/>
</storage_domain>

HTTP/1.1 201 Created
Content-Type: application/xml

<storage_domain id="fabe0451-701f-4235-8f7e-e20e458819ed"
  href="/ovirt-engine/api/storagedomains/fabe0451-701f-4235-8f7e-e20e458819ed">
    <name>export1</name>
    ...
</storage_domain>
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12.10.2. Deleting a Storage Domain
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A storage_domain reference is passed in the body of a DELETE request for a storage domain. The storage_domain reference is in the following form: 
<storage_domain>
    <host id="..."/>
</storage_domain>
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OR 
<storage_domain>
    <host>
        <name>...</name>
    </host>
</storage_domain>
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Format Storage Domain

An API user provides a optional format element to specify whether or not to format the storage domain after deletion.

Example 12.17. Formatting a storage domain after deletion

<storage_domain>
    <host id="..."/>
    <format>true</format>
</storage_domain>
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If no format element is passed, the storage domain remains unformatted.
Logical Removal of Storage Domain

The API also provides a function for the logical removal of the storage domain. This retains the storage domain's data for import. Use the destroy element to logically remove the storage domain and retain the data.

Example 12.18. Logical removal of a storage domain

<storage_domain>
    <host id="..."/>
    <destroy>true</destroy>
</storage_domain>
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12.10.3. Refreshing the LUN Size
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Users can refresh the LUN size after increasing the size of the underlying LUN on the storage server. The refreshluns action forces a rescan of the provided LUNs and updates the database with the new size if required.

Example 12.19. Refreshing the LUN Size

POST /ovirt-engine/api/storagedomains/262b056b-aede-40f1-9666-b883eff59d40/refreshluns HTTP/1.1
Accept: application/xml
Content-type: application/xml

<action>
   <logical_units>
      <logical_unit id="1IET_00010001"/>
      <logical_unit id="1IET_00010002"/>
   </logical_units>
</action>
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