This error is seen when running the Performance Center installation for Performance Managements NetOps product.
Sample text from screen output.
Not Enough Disk Space
This installation requires 2,456.87 MB of free disk space, but there are only 514.48 MB available at:
Please free at least 1,942.39 MB to proceed with the installation.
PRESS TO RECALCULATE AVAILABLE DISK SPACE, OR TYPE 'QUIT' TO EXIT THE INSTALLER:
In some OS versions the OS routine to check the space does not pickup the correct free disk space if the destination directory is a mount point.
This can be seen for all Performance Management environment components.
All supported Performance Management releases
Use the -DCHECK_DISK_SPACE=OFF switch when executing the installer will bypass the space check.
For example on a Data Aggregator we would run:
On Performance Center we would run:
This is resolved in versions 20.2.4 and higher
But the DCHECK_DISK_SPACE=OFF option is still available