AppSuite:OX System Requirements

OX App Suite v7 Requirements - Open-Xchange supported components overview

The following table provides an overview about the supported components of OX App Suite v7 and further products. This overview makes no claim to be complete.

Information about Maintenance expiries of components, versions and browser support, can be found in the Maintenance Expires Table

Hardware Requirements

General Assumptions

Open-Xchange App Suite Server (middleware services) is designed to run on physical servers or virtual machines of the same flavor. Cloud environments might be used in terms of Infrastructure as a Service (IaaS), meaning that all components need to be deployed in a classical manner on virtual machines.

This means in particular, but not only:

• Infrastructure is supposed to be "quasi-static". Automatic replacement of broken nodes is fine as long as this is always an exceptional case. Scaling out or reducing number of nodes must always be a conscious task and closely monitored.
• The only supported "Database as a service" solution is AWS RDS for MariaDB as defined by belows compatibility table.

Especially we expect the virtual hardware to be not over-provisioned. Each VM must have dedicated resources with respect to CPU cores, RAM, IOPS, storage, network bandwidth, network latency, etc.

Network is expected to be flat, inside one datacenter, no multi-datacenter, no segments. No packet loss, low latency.

Disclaimer: All recommendations below are without guarantee and can differ for specific deployments. For mid- and large-scale setups a detailed deployment planning and sizing tests are mandatory and should be agreed on with OX Professional Services.

High Level Design / OS setup

Operate services separately (USM, Document/Image Converters) as described in Cluster Setup.

Clocks between all nodes must be synchronized (e.g. via NTP).

Open file/max process limits need to be adjusted properly. Based on the used Linux distribution and init system configuration will differ, see Resource Limits for further explanation.

Platform Architecture: 64 bit versions (x84_64) of the supported Linux distributions

Node Sizing

OX App Suite Middleware

• Max. 8 GB heap per JVM + 4 GB system memory for other daemons and the OS (buffers, caches)
• 4 CPU cores (virtual, physical or hyperthreads) for plain HTTP connections. If TLS is terminated on application nodes this might need to be doubled.
• Disk space
  • 8 GB for OS and software
  • Some services like Document Converter need SWAP partitions (~1 * RAM)
  • 2 * system memory of free disk space (i.e. 12 GB RAM => 24 GB free disk space) for file spooling, log files, heap and core dumps

Untested/Unsupported Deployments

• Changes to Garbage Collector settings
• Running in containerized environments (Docker, rkt)
• Elasticity/High velocity of nodes going up and down: Services are sometimes stateful and demand static configuration
• Cloud platform services (PaaS) that promise to replacements for certain supported technologies but have not been verified by OX for these regards
• Multi-site active-active

Software Requirements

Linux Distributions

OX App Suite is available as Linux packages for the following distributions:

Distribution	Versions	Remarks
Red Hat Enterprise Linux	RHEL v7, RHEL v8
CentOS	v7 , v8	Install from RHEL package repositories
Debian	v11 (Bullseye), v12 (Bookworm)
Univention Corporate Server	v4.4, v5.0

Java

OX App Suite Middleware requires OpenJDK headless JRE 8 or 9. Linux distributions might offer only packages for OpenJDK 11 JRE or higher, which are not suitable for OX App Suite. It is in those cases required to install Eclipse Temurin 8 JRE with HotSpot VM (successor of Adoptium). A comprehensive installation guide can be found at https://adoptium.net/de/installation/linux/. The correct JRE package is temurin-8-jdk.

Databases

OX App Suite uses MySQL/MariaDB with the InnoDB storage engine as its primary data store. The following vendors and products are supported.

Vendor	Product	Versions
Oracle	MySQL Community Edition, Standard Edition, Enterprise Edition	v5.6.x, v5.7.x
MariaDB	MariaDB Server, Galera Cluster	v10.1.x, v10.2.x, v10.4.x, v10.5.x, v10.6.x

Important Notes

• Open-Xchange does not plan to support MySQL 8 or higher. As MariaDB and MySQL are diverging and cannot be assumed drop-in replacements anymore, Open-Xchange will focus on MariaDB Server and MariaDB Galera Cluster. Future App Suite releases > 7.10.x might rely on features only available in MariaDB.
• Open-Xchange supports Percona XtraDB Cluster for existing customers with initial deployments done using App Suite 7.8.x or earlier. Those customers can continue to use Percona XtraDB Cluster throughout the 7.10.x release series. Like for MySQL, 7.10.x supports only versions 5.6 and 5.7. It is not planned to support Percona XtraDB Cluster beyond 7.10.x.

• For some Linux distributions the included MySQL/MariaDB packages are too old to be used with App Suite. It is mandatory then to install a supported version from upstream package sources. Possible sources are the official vendor repositories of MySQL or MariaDB as well as for example Red Hat Software Collections.
• Required MySQL/MariaDB configuration configuration differs between App Suite 7.8.4 and 7.10.x and also between the different database systems in terms of SQL modes. See My.cnf for details.
• For upgrades from App Suite <= 7.8.2 to >= 7.10.0 a comprehensive database upgrade guide exists: AppSuite:7_10_Database_Migration

HTTP Reverse Proxy

An HTTP server with reverse proxy and load balancing capabilities is required in front of App Suite application servers. TLS termination, virtual hosts, path-based routing, sticky sessions and X-Forwarded headers are typical required features. OX strongly recommends Apache httpd 2.x for that. Configuration examples can be found in the quickinstall guides.

Important: For websocket support Apache httpd 2.4.x is needed, 2.2.x does not support the required ws_tunnel module. Websockets are mandatory for OX Documents starting with v7.10.3. Like with JRE and MySQL/MariaDB it might be necessary to use 3rd party packages to get the needed Linux packages. Especially for RHEL6 we recommend using Red Hat Software Collections.

Webserver

Apache httpd 2.x is required as webserver to serve static App Suite UI content. Configuration examples can be found in the quickinstall guides.

File Storage

Temporary Data

OX App Suite stores temporary files in the local file system, e.g. for spooling of uploaded data. Any file system supported by the installed JRE is suitable.

Persistent Data

Persistent data like OX Drive files, PIM attachments etc. and temporary attachment data need to be stored in a distributed file system as registered filestore that is available from all server nodes. For single-node setups a local file system mount point can be used, small to mid-scale setups can be powered by NFS. For large-scale setups object storages should be considered.

Object Storages

OX App Suite ships with different optional adapters to support object storages.

Vendor	Product	API	Remarks
Amazon	AWS S3	S3 HTTP API	See also AppSuite:S3_File_Store
CEPH	RadosGW	S3 HTTP API	See also AppSuite:S3_File_Store
Scality	Scality RING	Sproxyd HTTP API	See also AppSuite:Scality_File_Store

Desktop Browser (Minimum display resolution: 1024 x 768)

Browser	OX App Suite User Front-End
Google Chrome (latest & previous version)	v7.10.6
Mozilla Firefox (latest & current ESR-Version)	v7.10.6
Apple Safari (latest & previous version; macOS only)	v7.10.6
Microsoft Edge (Chromium-based)	v7.10.6
Microsoft Internet Explorer 10/11	v7.6.3

Mobile Device Support

Mobile Device	Supported Browser	OX App Suite User Front-End	Minimum Speed Requirements
iPhone on iOS 17 / iOS 18 / iPad OS	Safari	v7.10.6	3G connections (512/256kBit/s, 350ms latency)
Smartphone on Android 4.1 or later	Chrome (latest & previous version)	v7.10.6	3G connections (512/256kBit/s, 350ms latency)

Tablet Support

Tablet	Supported Browser	OX App Suite User Front-End	Minimum Speed Requirements
Apple iPad (all devices) on iOS 17 / iOS 18/ iPad OS	Safari	v7.10.6	3G connections (512/256kBit/s, 350ms latency)
Tablets on Android 4.1 or later	Chrome (latest & previous version)	v7.10.6	3G connections (512/256kBit/s, 350ms latency)

Calendar/Contact synchronization Apple macOS

Requirement	Calendar synchronization with CalDAV	Contacts synchronization with CardDAV
macOS 14.0 (Sonoma)
macOS 15.0 (Sequoia)

Calendar/Contact synchronization Apple iOS

Requirement	Calendar synchronization with CalDAV	Contacts synchronization with CardDAV
Apple iOS 17 / iOS 18 / iPad OS

Mobility Solution - Supported- Platforms, Features and Devices

Feature/Technology/Device	Connector for Business Mobility
Exchange Active Sync 12.1
Access and creation of emails
Calendar/Contact synchronization Apple iOS/Android
Public and Shared PIM folder
Global address book
Push E-Mail
Apple iOS 17 / iOS 18 / iPad OS
Android 8 (Oreo) or later with latest Gmail app.

OX Drive Clients

Requirement	System / Platform
OX Drive for Windows	OX App Suite 7.10.6 Latest versions of Windows 10 and above (no support for Windows RT and emulators)
OX Drive for Apple macOS	OX App Suite 7.10.6 macOS Sonoma 14, macOS Sequoia 15, Intel- and Apple Silicon-based devices are both supported
OX Drive for Apple iOS	OX App Suite 7.10.6 Apple iOS 17 / iOS 18 / iPadOS
OX Drive for Android	OX App Suite 7.10.6 Smartphones and tablets running Android 10.0 and above

OX Sync App

Requirement	System / Platform / User Interface
OX App Suite	OX App Suite 7.10.6
OX Sync App for Android	Smartphone on Android 5.0 or later

OX Guard

Requirement	System / Platform / User Interface
OX App Suite	OX Guard since v2.10.7: OX App Suite v7.10.6
Mobile Device and Tablet Support	Apple iPhone on iOS 17 / iOS 18/ iPad OS: Safari (latest version & previous version) Smartphone on Android 4.1 or later: Chrome (latest & previous version) Apple iPad (all devices) on iOS 17 / iOS 18 / iPad OS: Safari Safari (latest version & previous version) Tablets on Android 4.1 or later: Chrome (latest & previous version)