Configuring System Administrator Settings : Configuring Disk Management
  
Configuring Disk Management
You can switch the mode of disk-space allocation between SteelFusion storage and VSP in the Administration > System Settings: Disk Management page.
Before You Begin
Switching the disk layout is a destructive operation. When you switch the disk layout, you lose your ESXi configuration, local data store, and unconverted VMDKs.
•  Stop any VSP packages that are running and place the host in maintenance mode.
•  Any SteelFusion LUNs must be synchronized to the Core.
•  A SteelFusion license is required to switch the disk layout.
Switching the Disk Layout
The usable volume capacity for the VSP standalone storage and the VSP and SteelFusion combined storage includes space for the write reserve used by the SteelFusion blockstore. By default the SteelFusion Edge appliance and the standalone SteelFusion storage mode keeps a write reserve that is 10 percent of the block store size.
For details about deployment options for SteelFusion storage mode and VSP and SteelFusion storage mode, see Traffic Routing Options.
To switch the disk layout
Choose Administration > System Settings: Disk Management to display the Disk Management page.
Figure: Disk Management Page
5. Complete the configuration using the controls described in the following table.
Control
Description
Disk Layout
Select one of the following:
Granite Storage Mode - This mode allots most of the disk space for SteelFusion storage, while leaving a minimum amount for VSP functionality. If SteelFusion is not licensed, this mode is not available.
VSP Standalone Storage Mode - This mode allots all of the disk space for VSP functionality. If SteelFusion is not licensed, this mode is not available.
VSP and Granite Storage Mode - This mode evenly divides the disk space between VSP functionality and SteelFusion. If SteelFusion is not licensed, this mode is selected by default.
Note: The disk layout page refers to SteelFusion storage as Granite storage. Granite was a previous product name for SteelFusion and the terms are interchangeable.
Apply
Applies the changes. A message asks you to confirm the disk layout change.
If you receive a warning that ESXi is not in a safe state, click Cancel to dismiss the warning and stop the disk layout change. Click Continue to dismiss the warning and proceed with the change to the disk layout.
Click Change Layout and Reboot to proceed.
Important: If you switch the disk layout mode, you lose your ESXi configuration, local data store, and unconverted VMDKs. You will have to reconfigure ESXi and recreate the local data store.