content_image/1012177.jpg
The amount of usable and provisioned space that can be viewed on the GUI Dashboard page is shown in Figure 2-10. 

<img src='content_image/1012177.jpg'>

Note:  Beginning with firmware release 1.6, the amount of used effective capacity  is not shown in the GUI dashboard, but it can be displayed in the CLI using the lsarray command. 

## IBM Compresstimator tool 

The IBM FlashSystem 900 Model AE3 is supported in the IBM Compresstimator tool. This tool is a host-based application with which the user can estimate the amount of compression on the IBM FlashSystem 900 Model AE3 for specific workloads. 

The IBM Compresstimator works the same as for previously supported products. For the IBM FlashSystem 900 Model AE3, the following additions were made: 

GLYPH<SM590000> New “Storage system type” -s FLASHSYSTEM 

GLYPH<SM590000> New options for storage system type - FLASHSYSTEM 

– Set the number of flash modules in the simulated system --flash-modules N 

– Set the size of the flash modules in the simulated system --flash-module-size [SMALL|MEDIUM|LARGE|XLARGE] 

