Installation Guide > Installation Guide > F. System Requirements for OpenVMS > System Hardware Requirements on OpenVMS
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System Hardware Requirements on OpenVMS
The following table describes typical system hardware requirements.
Note:  Check the Readme file for changes to the following requirements that are specific to your platform.
Element
Typical Requirement
Number of disks
At least two separate storage devices for your databases and checkpoint files are strongly recommended.
Disk space
The amount of space required on any one particular disk is determined by the number of disks in your configuration, the packages you are installing, and the locations you choose for your files.
Peak system disk utilization is approximately 1.2 x kit size.
The default file size for your primary and backup transaction log files is 256 MB. However, the recommended size is 400 MB or larger.
For help in determining space requirements for II_DATABASE, see the Database Administrator Guide.
Physical Memory
For a DBMS Server installation:
 
OS
Required
Recommended
 
Alpha
128 MB
512 MB or more
 
Last modified date: 01/30/2023