KB484319: “Cube can’t be created because there’s not too much disk space” error message received when publishing a cube in MicroStrategy 2020 although excess disk space is available

Description

When publishing a cube in Strategy 2020, the following error message is received, despite having enough excess disk space to accommodate the cube:
Cube can’t be created because there’s not too much disk space under path [path]. Available disk space is X GB and total number of disk space is Y GB. Free more disk size and try again. Error in Process method of Component: CubeServer
Note that free disk space is less than 10GB.
 

Why is this happening?

Beginning with Strategy 2020, the Intelligence Server uses a single absolute value representing the left free disk space as a threshold to stop generating caches. The default value for release build is 10GB.
This new setting can be disabled through the registry. If the registry key value is set to 0, the Intelligence Server will fall back to the old behavior. For more information, see Server-Side Behavior Changes for Cache Setting.

Solution

To fall back to the old behavior and avoid the 10 GB threshold, modify the registry file on your Intelligence Server.

On Windows

1. Add a dword value within the 

   HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\MicroStrategy\Data Sources\CastorServer

   folder. 
   Value name: Reserved Disk Space(GB)
   Value data: 0
   
2. Restart the Intelligence Server to load the changes.

On Linux

Note: Please make sure you back up your

MSIReg.reg

1. Add the following entry to

   MSIReg.reg

   file on Intelligence Server:
   

   
   [HKEY_LOCAL_MACHINE\SOFTWARE\MicroStrategy\Data Sources\CastorServer]
   "Reserved Disk Space(GB)"=dword:00000000

   
   
2. Restart the Intelligence Server to load the changes.