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# System Requirements

## Memory

Memory requirements for running an ownCloud server are greatly variable, depending on the numbers of users and files, and volume of server activity. ownCloud officially requires a minimum of 128MB RAM. But, we recommend a minimum of 512MB.

Note

Consideration for low memory environments

Scanning of files is committed internally in 10k files chunks. Based on tests, server memory usage for scanning greater than 10k files uses about 75MB of additional memory.

## Recommended Setup for Running ownCloud

For best performance, stability, support, and full functionality we officially recommend and support:

Platform | Options
--- | ---
Operating System | Ubuntu 16.04
Database | MySQL or MariaDB 5.5+
Web server | Apache 2.4 with mod_php
PHP Runtime | PHP (5.6+ or 7.0+)

## Supported Platforms

If you are not able to use one or more of the above tools, the following options are also supported.

### Server

- Debian 7 and 8
- SUSE Linux Enterprise Server 12 and 12 SP1
- Red Hat Enterprise Linux/Centos 6.5 and 7 (7 is 64-bit only)
- Ubuntu 14.04 LTS

### Web Server

- Apache 2.4 with mod_php

### Databases

- Oracle 11g (Enterprise edition only)
- PostgreSQL

### Hypervisors

- Hyper-V
- VMware ESX
- Xen
- KVM

### Desktop

- Windows 7+
- Mac OS X 10.7+ (64-bit only)
- Ubuntu 16.10
- Ubuntu 16.04
- Ubuntu 14.04
- Debian 7.0
- Debian 8.0
- CentOS 7
- Fedora 24
- Fedora 25
- openSUSE Leap 42.1
- openSUSE Leap 42.2

Note

For Linux distributions, we support, if technically feasible, the latest 2 versions per platform and the previous LTS.

### Mobile

- iOS 9.0+
- Android 4.0+

### Web Browser

- IE11+ (except Compatibility Mode)
- Firefox 14+
- Chrome 18+
- Safari 5+

See Manual Installation on Linux for minimum software versions for installing ownCloud.

## Database Requirements for MySQL / MariaDB

The following are currently required if you’re running ownCloud together with a MySQL or MariaDB database:

- Disabled or `BINLOG_FORMAT = MIXED` or `BINLOG_FORMAT = ROW` configured Binary Logging (See: MySQL / MariaDB with Binary Logging Enabled)
- InnoDB storage engine (The MyISAM storage engine is not supported, see: MySQL / MariaDB storage engine)
- “READ COMMITED” transaction isolation level (See: MySQL / MariaDB “READ COMMITED” transaction isolation level)

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