diff --git a/admin_manual/configuration_database/linux_database_configuration.rst b/admin_manual/configuration_database/linux_database_configuration.rst
index 8f3c1db69..085f99d2b 100644
--- a/admin_manual/configuration_database/linux_database_configuration.rst
+++ b/admin_manual/configuration_database/linux_database_configuration.rst
@@ -51,6 +51,18 @@ Log <https://mariadb.com/kb/en/mariadb/overview-of-the-binary-log/>`_ and `The
 Binary Log <https://dev.mysql.com/doc/refman/5.6/en/binary-log.html>`_ for 
 detailed information.
 
+.. _db-transaction-label:
+
+Database "READ COMMITED" transaction isolation level
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+As discussed above Nextcloud is using the ``TRANSACTION_READ_COMMITTED`` transaction isolation
+level. Some database configurations are enforcing other transaction isolation levels. To avoid
+data loss under high load scenarios (e.g. by using the sync client with many clients/users and
+many parallel operations) you need to configure the transaction isolation level accordingly.
+Please refer to the `MySQL manual <https://dev.mysql.com/doc/refman/5.7/en/set-transaction.html>`_
+for detailed information.
+
 Parameters
 ----------
 For setting up ownCloud to use any database, use the instructions in :doc:`../installation/installation_wizard`. You should not have to edit the respective values in the :file:`config/config.php`.  However, in special cases (for example, if you want to connect your ownCloud instance to a database created by a previous installation of ownCloud), some modification might be required.
diff --git a/admin_manual/configuration_server/security_setup_warnings.rst b/admin_manual/configuration_server/security_setup_warnings.rst
index 8becf93b6..07b24169b 100644
--- a/admin_manual/configuration_server/security_setup_warnings.rst
+++ b/admin_manual/configuration_server/security_setup_warnings.rst
@@ -119,3 +119,11 @@ Some files have not passed the integrity check
 ----------------------------------------------
 
 Please refer to the :ref:`code_signing_fix_warning_label` documentation how to debug this issue.
+
+Your database does not run with "READ COMMITED" transaction isolation level
+---------------------------------------------------------------------------
+
+"Your database does not run with "READ COMMITED" transaction isolation level.
+This can cause problems when multiple actions are executed in parallel."
+
+Please refer to :ref:`db-transaction-label` how to configure your database for this requirement.
\ No newline at end of file
diff --git a/admin_manual/installation/system_requirements.rst b/admin_manual/installation/system_requirements.rst
index fe167cd84..c7dd66b5f 100644
--- a/admin_manual/installation/system_requirements.rst
+++ b/admin_manual/installation/system_requirements.rst
@@ -10,7 +10,7 @@ depending on the numbers of users and files, and volume of server activity.
 Nextcloud needs a minimum of 128MB RAM, and we recommend a minimum of 512MB.
 
 Recommended Setup for Running Nextcloud
---------------------------------------
+---------------------------------------
 
 For best performance, stability, support, and full functionality we recommend:
 
@@ -39,3 +39,12 @@ Supported Platforms
 
 See :doc:`source_installation` for minimum software versions for installing 
 Nextcloud.
+
+Database Requirements for MySQL / MariaDB
+-----------------------------------------
+
+The following is currently required if you're running Nextcloud together with a MySQL / MariaDB database:
+
+* Disabled or BINLOG_FORMAT = MIXED configured Binary Logging (See: :ref:`db-binlog-label`)
+* InnoDB storage engine (MyISAM is not supported)
+* "READ COMMITED" transaction isolation level (See: :ref:`db-transaction-label`)