3PAR is not reporting stats correctly

Bug #1824371 reported by Gorka Eguileor on 2019-04-11
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This bug affects 1 person
Affects Status Importance Assigned to Milestone
Cinder
Undecided
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Bug Description

The 3PAR driver is not reporting stats correctly as per de definitions explained in https://specs.openstack.org/openstack/cinder-specs/specs/queens/provisioning-improvements.html

At least provisioned_capacity_gb and total_capacity_gb are not being reporting correctly.

This can be confirmed by getting the stats with refresh, creating a volume, and then refreshing the stats again.

I'n my testing I did this using a 1GB volume and these were the results:

At the beginning:
            'provisioned_capacity_gb': 1362,
            'total_capacity_gb': 9006,
            'total_volumes': 122}],

After creating the 1GB volume
            'provisioned_capacity_gb': 1362,
            'total_capacity_gb': 9007,
            'total_volumes': 123}],

As we can see the provisioned_capacity_gb doesn't incrase by 1 as it should, yet the total_capacity_gb does.

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