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Attribute Name	Type	Mult.	Access	Stereotypes	Description	Rationale
qosId	Identifier	1	RW	OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	Unique identifier of the storage Qos in VNFD.	See description.
qosName	String	1	RW	OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	Name of storage QoS.	Human readable name, corresponding to the Id.
consumer	~~consumerScope~~ ConsumerScope	1	RW	OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	Consumer type. BACK_END FRONT_END	Identify the volume which a Storge is based on is for the backend or frontend.
qosSpecs	KeyValuePair	0..*	RW	OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	Describe qualities of Qos：total read/write rate{total_bytes_sec}、total read/write IOPS{total_iops_sec}.	This is used for the information of basic stroge Qos requirements.

Datatype: VolumeType

Attribute Name	Type	Mult.	Access	Stereotypes	Description	Rationale
volumeTypeId	Identifier	1	RW	OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	Unique identifier of volume type in VNFD.	See description.
volumeTypeName	String	1	RW	OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	Name of volume type.	Human readable name, corresponding to the Id.
backendName	String	1	RW	OpenModelAttribute isInvariant: false valueRange: no range constraint support: MANDATORY	Name of the object linking to the backend distributed storage.(Name in cinder)	Each volume type has a corresponding backend, the name is also the name in Openstack Cinder configuration.

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