I've got a questions about our VMFS datastores.  We have two LUNs for our Vmware Datastores both residing on the same Volume (vmfs1)
 both residing on the same Volume (vmfs1)
| Name: |  | vmfs1 |  |   |  |   | 
| Type: |  | Flexible |  | Root Volume? |  | - | 
| FlexClone ? |  | - |  | Containing Aggregate: |  | aggr0 | 
| Status: |  | online,raid_dp,sis |  |   |  |   | 
| Used Capacity: |  | 1.12 TB |  | Space Guarantee |  | volume | 
| % Used: |  | 66% |  | Language: |  | en | 
| Total Capacity: |  | 1.7 TB |  | Total Size: |  | 1.7 TB | 
| Number of Files: |  | 125 |  | Max Directory Size: |  | 17.9 MB | 
| Max Files: |  | 31.9 m |  |   |  |   | 
|
| SNAP Mirror? |  | - |  | SNAP Directory? |  | - | 
| SNAP? |  | - |  | Resync SNAP Time: |  | 60 | 
| SVO Enable? |  | - |  | SVO Checksum? |  | - | 
| Allow SVO RMAN? |  | - |  | SVO Reject Errors? |  | - | 
| Create Unicode? |  | - |  | Convert Unicode? |  | - | 
| Minimal Read Ahead? |  | - |  | NV Fail? |  | - | 
| Fractional Reserve : |  | 100 |  | Extent? |  | - | 
| FS Size Fixed? |  | - |  | Update Access time? |  |   | 
| I2P? |  |   |  | Ignore Inconsistent?? |  | - | 
What I'm scared of here is that we have a 1.7TB volume with two 1.7TB LUNS on it that are both almost full and Netapp is only reporting 66% usage.  Shouldnt the volume be 2x 1.7TB to be sized correctly?