This section describes how to configure back-end data
stores using storage policies. In vCenter, you can create
one or more storage policies and expose them as a Block
Storage volume-type to a vmdk volume. The storage policies
are exposed to the vmdk driver through the extra spec
property with the
vmware:storage_profile key.
For example, assume a storage policy in vCenter named
gold_policy. and a Block Storage
volume type named vol1 with the extra
spec key vmware:storage_profile set to
the value gold_policy. Any Block
Storage volume creation that uses the
vol1 volume type places the volume
only in data stores that match the
gold_policy storage policy.
The Block Storage back-end configuration for vSphere
data stores is automatically determined based on the
vCenter configuration. If you configure a connection to
connect to vCenter version 5.5 or later in the
cinder.conf file, the use of
storage policies to configure back-end data stores is
automatically supported.
![[Note]](../common/images/admon/note.png) | Note |
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You must configure any data stores that you configure for the Block Storage service for the Compute service. |
Procedure 1.7. To configure back-end data stores by using storage policies
In vCenter, tag the data stores to be used for the back end.
OpenStack also supports policies that are created by using vendor-specific capabilities; for example vSAN-specific storage policies.
Note The tag value serves as the policy. For details, see the section called “Storage policy-based configuration in vCenter”.
Set the extra spec key
vmware:storage_profilein the desired Block Storage volume types to the policy name that you created in the previous step.Optionally, for the
vmware_host_versionparameter, enter the version number of your vSphere platform. For example,5.5.This setting overrides the default location for the corresponding WSDL file. Among other scenarios, you can use this setting to prevent WSDL error messages during the development phase or to work with a newer version of vCenter.
Complete the other vCenter configuration parameters as appropriate.
| Note |
|---|---|
The following considerations apply to configuring SPBM for the Block Storage service:
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