NEC Express5800/B120b-d User Manual page 221

About the System Partition Size
When the system is Windows Server 2008 64-bit (x64) Edition:
Required partition size =
size required to install OS + paging file size + dump file size + application size
Size required to install OS
Paging file size (recommended) = Installed memory size x 1.5
Dump file size
Application size
IMPORTANT:
The above-mentioned paging file size is recommended for collecting
debug information (memory dump). The paging file with initial size
large enough to store the dump file in the boot drive is required.
Correct debug information might not be able to be collected due to
virtual memory shortage when the paging file is insufficient, so set
an enough size of the paging file with the entire system.
Regardless of the size of the mounted memory, or the Write
debugging information (type of memory dump), the maximum size
of the dump file is 'The size of the mounted memory + 300MB'.
If you install any application program or the like, add necessary
space to the partition to install these programs.
Example:
The partition size required for a system with an installed memory size of 512 MB and a full
installation of the operating system:
11,600MB + (512MB x 1.5) + (512MB + 300MB) + application size
= 13,180MB + application size.
If the provided partition size is smaller than that required to install the OS and paging file, expand
the partition size or utilize a larger disk. If your system does not have a sufficient dump file size,
divide the required file space into multiple disks by performing the steps below:
1.
Set the system partition size to a size sufficient to install the OS and paging file.
2.
See "Setting for Solving Problems" to write the debug information of the dump file onto
another disk.
If there is not enough disk space to write the debug information, add another disk for the dump file.
Installing the Operating System B-3
= 11,600MB (Full Installation)
or
= 4,100MB (Server Core Installation)
= Installed memory size + 300MB
= Required size