Disk space requirements for OneAgent installation and update on Windows

The following table includes information about the disk space requirements for OneAgent full-stack installation and updates. Note that exact values may vary based on OneAgent version.

Size of installation (with temporary installation files removed) ~1.1 GB
Recommended free space for runtime data (logs, temporary files, crash reports, memory dumps, etc.) 3 GB
Additional space required for updates 2.4 GB
Total 6.5 GB

The space required for logs is about 1 GB. If you have tight disk space constraints, you can limit the log size. If you're interested in saving up the disk space on logs, please contact a Dynatrace ONE product specialist by clicking the chat button in the upper-right corner of the Dynatrace menu bar.

How do we calculate space required for installation and updates?

When calculating the space required for instalaltion and updates, we take into account the compressed EXE installer file size, the exctracted MSI package, and the size of the installation process, that is 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 [Installation path]\Downloads
2 ~520 MB Extracted MSI installer End of the installation OneAgent Installation [Installation path]\Downloads
3 ~520 MB Extra storage for temporary installation files End of the installation OneAgent Installation %APPDATA%
4 ~520 MB Copy of the MSI installer saved by Windows Next version installed Windows installer %WINDIR%\Installer
5 ~520 MB Installed files Next version installed OneAgent Installation [Installation path]
Σ ~2160 MB

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]) * 1.1

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.