– Specify a drive other than the system drive for "Dedicated Dump File".
Create the registry shown below by using the Registry Editor and specify the name of
Dedicated Dump File.
<When specifying the file named "dedicateddumpfile.sys" in drive D>
Note the following when specifying Dedicated Dump File:
• Pay strict attention to edit the registry.
• The setting is applied after restarting the system.
• Specify a drive that has free space of "installed memory size + 300 MB" or more.
• Dedicated Dump File cannot be placed in dynamic volumes.
• To collect memory dump by using Dedicated Dump File, a paging file is required in
any drive.
• Dedicated Dump File is only used for collecting memory dump, and is not used as
virtual memory. Specify the paging file size so that sufficient virtual memory can be
allocated in the entire system.
System partition size
The system partition size can be calculated by using the following formula.
OS size + paging file size + dump file size + application size
OS size ＝ 15,600MB
(Windows Server 2008 R2 ＋ Service Pack 1 )
＝ 8,400MB
(Windows Server 2008 R2 with Service Pack 1)
Paging file size (recommended) ＝ installed memory size × 1.5
Dump file size ＝ installed memory size + 300MB
Application size ＝ as required by the application
For example, if the installed memory size is 1 GB (1,024 MB) and application size is 100 MB, and
the full installation is selected, the partition size is calculated as follows:
8,000MB ＋(1,024MB × 1.5) ＋1,024MB ＋300MB ＋100MB
＝10,960MB
The above mentioned partition size is the minimum partition size required for installing Windows.
Ensure that the partition size is sufficient for system operations.
The following partition sizes are recommended.
32,768MB (32GB) or more
*1 GB = 1,024 MB
Key: HKEY_LOCAL_MACHINE\SYSTEM
\CurrentControlSet\Control\CrashControl
Name: DedicatedDumpFile
Type: REG_SZ
Data: D:\dedicateddumpfile.sys
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