you are correct. I was able to find the ocum_view and netapp_model_view schemas when I connected to the mysql db using the wfa integration schema credentials (using MySQL workbench). I then used BIRT to create a datasource for each schema. I was able to create a custom report and import into OCUM. Below is a sample of the query I used. I had to create a joint dataset. If there is an easier way please let me know. I'm fairly new to sql queries and building custom reports.
Pulled volume info from netapp_model_view first:
select volume.objid AS volumeID,
volume.name AS volName,
volume.state AS State,
(select cluster.name from cluster where (cluster.objid = volume.clusterId)) AS clusterName,
(select vserver.name from vserver where (vserver.objid = volume.vserverId)) AS vserverName,
(select aggregate.name from aggregate where (aggregate.objid = volume.aggregateId)) AS aggregateName,
round(volume.size/Power(1024,3),2) AS TotalSizeGB,
round(volume.sizeUsed/Power(1024,3),3) AS DataUsedGB,
round(volume.snapshotReserveSize/Power(1024,3),3) AS SnapReserveGB,
round(volume.sizeAvail/Power(1024,3),3) AS TotalAvailGB,
round((volume.snapshotReserveSize + volume.sizeUsed)/Power(1024,3),2) AS TotalUsedGB,
volume.sizeUsedPercent AS UsedPercentage
from volume
Then I pulled the daily growth and days until full from ocum_view:
select volume.id,
round(volume.bytesUsedPerDay/Power(1024,3),2) AS DailyGrowthRate,
cast(floor(volume.daysUntilFull) as unsigned) AS DaysUntilFull
from volume
I combined the two by creating a joint dataset in BIRT. This gave me exactly what I needed.

This is the output I set up for the customer:
