NEC Express5800 User Manual page 539

Dividing into the partition of the recommended size into multiple disks as written below will solve
problem that it cannot be reserved in one disk.
1.
Set the "Size required for installation + Paging file size".
2.
See Chapter 5 and set that debugging information (equivalent to the dump file size) is to
be written to a separate disk.
(If the disk does not have enough free space to enable the dump file size to be written,
then after installing the system using the "Size required for installation + Paging file size",
install an additional new disk.)
Installing Windows Server 2003 G-5