NEC Express5800/R120i-2M Installation Manual page 27

Chapter 1 Installing Windows
System partition size
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The system partition size can be calculated by using the following formula.
Size required to install the OS + paging file size + dump file size + application size
Desktop Experience
Size required to install the OS
Paging file size (recommended)
Dump file size
Application size
Server Core
Size required to install the OS
Paging file size (recommended)
Dump file size
Application size
For example, if the installed memory size is 2 GB (2,048 MB), and application size is 100 MB,
the partition size is calculated as follows:
12,400MB + (2,048MB + 400MB) + 2,048MB + 400MB + 100MB
= 17,396MB
The above mentioned partition size is the minimum partition size required for system installation.
Ensure that the partition size is sufficient for system operations.
The following partition sizes are recommended.
Desktop Experience
Server Core
＊ 1GB = 1,024MB
Note
 The above paging file sizes are recommended for collecting debug
information (dump file). The initial size of the Windows partition paging file
must be large enough to store dump files.
Make sure you set a sufficient paging file size. If the paging file is
insufficient, there will be a virtual memory shortage that may result in an
inability to collect correct debug information.
 Regardless of the sizes of internal memory and write debug information, the
maximum size of the dump file is "installed memory size + 400 MB (installed
memory size + 1,100 MB when installed memory size is 4 TB or more)".
 When installing other applications or other items, add the amount of space
needed by the application to the partition.
If the partition size for installing Windows is smaller than the recommended size, expand the
partition size or add another hard disk drive.
Installation Guide (Windows Server 2019)
3. Installing Windows Server 2019
= 12,400 MB
= installed memory size + 400MB
= installed memory size + 400MB
(installed memory size is 4 TB or less)
= installed memory size + 1,100MB
(installed memory size is exceeding 4 TB)
= as required by the application
= 8,600MB
= installed memory size + 400MB
= installed memory size + 400MB
(installed memory size is 4 TB or less)
= installed memory size + 1,100MB
(installed memory size is exceeding 4 TB)
= as required by the application
: 32,768MB(32GB) or more
: 32,768MB(32GB) or more
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