This page provides information about the OneAgent directory structure and disk space requirements for OneAgent full-stack installation and updates. Note that exact values may vary based on OneAgent version.
OneAgent directories and their sizes
|Default directory||Can be modified?|
|Size of installation (with temporary installation files removed)||~1.1 GB||
|Persistent configuration||~5 MB||`%PROGRAMDATA%\dynatrace\oneagent\agent\config||No|
|Temporary files, runtime configuration||200 MB||
|Crash reports, memory dumps||3 GB||
|Additional space required for updates||2.4 GB|
For a complete list of files and directories added to your system by OneAgent, see OneAgent security on Windows.
OneAgent files aging mechanism
OneAgent in full-stack monitoring mode uses a built-in aging mechanism to ensure that the OneAgent files, including log files and runtime data, are kept within a reasonable size. For more information, see OneAgent file aging mechanism].
How we calculate space required for installation and updates
When calculating the space required for installation and updates, we take into account the compressed EXE installer file size, the extracted MSI package, and the size of the installation process (the space required to deploy OneAgent files).
|Size||Description||Removed after||Claimed by||Path|
|1||~80 MB||EXE installer downloaded by AutoUpdate||OneAgent restart or next version installed 1||AutoUpdate||
|2||~520 MB||Extracted MSI installer||End of the installation||OneAgent Installation||
|3||~520 MB||Extra storage for temporary installation files||End of the installation||OneAgent Installation||
|4||~520 MB||Copy of the MSI installer saved by Windows||Next version installed||Windows installer||
|5||~520 MB||Installed files||Next version installed||OneAgent Installation||
1 If you download the EXE installer manually, the installation process won't remove it.
Additional space required for installation and updates is calculated using the 10% safety margin:
(size of the installation process [2+3+4+5] + installer files size ) * 1.1
Required disk space for OneAgent installation and update on a single drive is ~2 380 MB calculated using this formula.
Note that the EXE installer is compressed, which explains the difference in size in comparison to the MSI installer.
In terms of space requirements, there's no real difference between manual installation of the new version (when an older version is already installed), automatic update, and updates that are triggered by restarting the OneAgent container. In all these cases, the installation process is performed exactly the same way. What differs is the method through which the update is triggered.