Installation Failed on Linux Because of Insufficient free PE

To enable the Block Data Protection for Linux, you have to have a volume which is part of an LVM volume group. Then, the LVM volume group must have free physical extent (PE) of at least 10%. Free PE is different from free spaces in each volume. For example, you can get the following error at the end of the installation when there is no free PE at all in the volume group even though the volume has ample spaces:

Error: There has been an error.
The free space requirement for Advance Recovery is not satisfied. 
Block DataProtection cannot be installed. 
The minimum required free space is 10% of the allocated space 
of all the logical volumes in the volume group.

In this case, you have to create more free PE in the volume group either by shrinking the volumes in the volume group and then the volume group too while keeping the disk capacity; or, attach a new disk and add it to the volume group so that the new disk can be used with free PE.

See also. For detailed instructions, see the following article:

• Catalogic Knowledge Base: Unable to install DPX Client on Linux due to insufficient free PE