Disk requirements for OneAgent installation and upgrade
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.
| Linux (x86) | Linux (ppcle) | Linux (s390) | AIX** | Windows | |
|---|---|---|---|---|---|
| Size of installation (with temporary installation files removed) | 700 MB | 300 MB | 130 MB | 600 MB | 1.12 MB |
| Recommended free space for runtime data (logs, temporary files, crash reports, memory dumps, etc.) | 3 GB | 3 GB | 3 GB | 3 GB | 3 GB |
| Additional space required for updates | 1.1 GB | 450 MB | 300 MB | 800 MB | 2.4 GB |
| Total | 4.8 GB | 3.8 GB | 3.4 GB | 4.4 GB | 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.
Dynatrace Managed self-monitoring
OneAgent self-monitoring for Dynatrace Managed requires 4.8 GB of disk space on Linux and 3.9 GB on Windows. For more information, see What is the directory structure of Dynatrace Managed?
How do we calculate space required for updates?
When calculating the space required for updates, we take into account the installer file size and the size of the installation process, that is the space required to deploy OneAgent files.
| Linux (x86) | Linux (ppcle) | Linux (s390) | AIX | Windows | |
|---|---|---|---|---|---|
| Installer file size | 110 MB | 35 MB | 35 MB | 50 MB | 80 MB (EXE) 520 MB (MSI) |
| Installation process size | 1 GB | 400 MB | 235 MB | 750 MB | 2.3 GB |
Additional space required for updates is calculated using the 10% safety margin:
(installer file size + size of the installation process) * 1.1
(size of the installation + installer file size) * 1.1
Size of the installation process
The size of the installation process is calculated as follows:
3 * installer file size + size of the installation
The installer size must be multiplied by 3 to account for:
- Downloaded installer file
- Archive, which is separated from the installer script
- Unpacked external TAR
| Size | Description | Removed after | Claimed by | Path | |
|---|---|---|---|---|---|
| 1 | ~80 MB | EXE installer downloaded by user | Removed by user | user | User specified |
| 2 | ~520 MB | Extracted MSI installer and the config file | End of the installation | OneAgent Installation | [Installation path]\Downloads |
| 3 | ~520 MB | Extra storage for temporary installation files | End of the installation | Advanced installer | %APPDATA% |
| 4 | ~520 MB | Copy of the MSI installer saved by Windows | Next version installed | Windows MSI | C:\Windows\Installer |
| 5 | ~520 MB | Installed files | Next version installed | OneAgent Installation | [Installation path] |
| Σ | ~2160 MB |
Required disk space during installation on a single drive: ~2.16 GB (1,2,3,4,5).
OneAgent size after installation/update: ~1.12 GB (1,4,5)
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.