The Disk Space Hard Limit field specifies the maximum amount of disk space that the quota target can use. The value in this field represents a hard limit that cannot be exceeded.
If you specify both a disk space hard limit and a disk space soft limit, the disk space hard limit value should be greater than or equal to the disk space soft limit value.
Values can be kilobytes (KB), megabytes (MB), or gigabytes (GB).
KB is equivalent to 1,024 bytes, MB is equivalent to 220 bytes, and GB is equivalent to 230 bytes.
Values you enter in the Disk Space Hard Limit field should be between 0 and 4095GB.