diff --git a/core/Command/Db/ConvertFilecacheBigInt.php b/core/Command/Db/ConvertFilecacheBigInt.php
new file mode 100644
index 0000000000000000000000000000000000000000..75d3a48a5c8c4f9fd0093cdd2d94d2742adeacd2
--- /dev/null
+++ b/core/Command/Db/ConvertFilecacheBigInt.php
@@ -0,0 +1,107 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Joas Schilling <coding@schilljs.com>
+ *
+ * @author Joas Schilling <coding@schilljs.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Core\Command\Db;
+
+use Doctrine\DBAL\Types\Type;
+use OC\DB\SchemaWrapper;
+use OCP\IDBConnection;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\ConfirmationQuestion;
+
+class ConvertFilecacheBigInt extends Command {
+
+	/** @var IDBConnection */
+	private $connection;
+
+	/**
+	 * @param IDBConnection $connection
+	 */
+	public function __construct(IDBConnection $connection) {
+		$this->connection = $connection;
+		parent::__construct();
+	}
+
+	protected function configure() {
+		$this
+			->setName('db:convert-filecache-bigint')
+			->setDescription('Convert the ID columns of the filecache to BigInt');
+	}
+
+	protected function getColumnsByTable() {
+		return [
+			'activity' => ['activity_id', 'object_id'],
+			'activity_mq' => ['mail_id'],
+			'filecache' => ['fileid', 'storage', 'parent', 'mimetype', 'mimepart'],
+			'mimetypes' => ['id'],
+			'storages' => ['numeric_id'],
+		];
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output) {
+
+		$schema = new SchemaWrapper($this->connection);
+		$updates = [];
+
+		$tables = $this->getColumnsByTable();
+		foreach ($tables as $tableName => $columns) {
+			if (!$schema->hasTable($tableName)) {
+				continue;
+			}
+
+			$table = $schema->getTable($tableName);
+
+			foreach ($columns as $columnName) {
+				$column = $table->getColumn($columnName);
+				if ($column->getType()->getName() !== Type::BIGINT) {
+					$column->setType(Type::getType(Type::BIGINT));
+					$column->setOptions(['length' => 20]);
+
+					$updates[] = $tableName . '.' . $columnName;
+				}
+			}
+		}
+
+		if (empty($updates)) {
+			$output->writeln('<info>All tables already up to date!</info>');
+			return 0;
+		}
+
+		$output->writeln('<comment>This can take up to hours, depending on the number of files in your instance!</comment>');
+
+		if ($input->isInteractive()) {
+			$helper = $this->getHelper('question');
+			$question = new ConfirmationQuestion('Continue with the conversion (y/n)? [n] ', false);
+
+			if (!$helper->ask($input, $output, $question)) {
+				return 1;
+			}
+		}
+
+		$this->connection->migrateToSchema($schema->getWrappedSchema());
+
+		return 0;
+	}
+}
diff --git a/core/Migrations/Version13000Date20170718121200.php b/core/Migrations/Version13000Date20170718121200.php
index d8d66696a14aa20f8205261793dcc52c8b2838d8..0ab777f6de2d25050dc8f9cdf51abc62539a3886 100644
--- a/core/Migrations/Version13000Date20170718121200.php
+++ b/core/Migrations/Version13000Date20170718121200.php
@@ -24,6 +24,7 @@
 namespace OC\Core\Migrations;
 
 use Doctrine\DBAL\Schema\Schema;
+use Doctrine\DBAL\Types\Type;
 use OCP\Migration\SimpleMigrationStep;
 use OCP\Migration\IOutput;
 
@@ -66,10 +67,10 @@ class Version13000Date20170718121200 extends SimpleMigrationStep {
 				'notnull' => false,
 				'length' => 64,
 			]);
-			$table->addColumn('numeric_id', 'integer', [
+			$table->addColumn('numeric_id', Type::BIGINT, [
 				'autoincrement' => true,
 				'notnull' => true,
-				'length' => 4,
+				'length' => 20,
 			]);
 			$table->addColumn('available', 'integer', [
 				'notnull' => true,
@@ -116,10 +117,10 @@ class Version13000Date20170718121200 extends SimpleMigrationStep {
 
 		if (!$schema->hasTable('mimetypes')) {
 			$table = $schema->createTable('mimetypes');
-			$table->addColumn('id', 'integer', [
+			$table->addColumn('id', Type::BIGINT, [
 				'autoincrement' => true,
 				'notnull' => true,
-				'length' => 4,
+				'length' => 20,
 			]);
 			$table->addColumn('mimetype', 'string', [
 				'notnull' => true,
@@ -132,14 +133,14 @@ class Version13000Date20170718121200 extends SimpleMigrationStep {
 
 		if (!$schema->hasTable('filecache')) {
 			$table = $schema->createTable('filecache');
-			$table->addColumn('fileid', 'integer', [
+			$table->addColumn('fileid', Type::BIGINT, [
 				'autoincrement' => true,
 				'notnull' => true,
-				'length' => 4,
+				'length' => 20,
 			]);
-			$table->addColumn('storage', 'integer', [
+			$table->addColumn('storage', Type::BIGINT, [
 				'notnull' => true,
-				'length' => 4,
+				'length' => 20,
 				'default' => 0,
 			]);
 			$table->addColumn('path', 'string', [
@@ -151,23 +152,23 @@ class Version13000Date20170718121200 extends SimpleMigrationStep {
 				'length' => 32,
 				'default' => '',
 			]);
-			$table->addColumn('parent', 'integer', [
+			$table->addColumn('parent', Type::BIGINT, [
 				'notnull' => true,
-				'length' => 4,
+				'length' => 20,
 				'default' => 0,
 			]);
 			$table->addColumn('name', 'string', [
 				'notnull' => false,
 				'length' => 250,
 			]);
-			$table->addColumn('mimetype', 'integer', [
+			$table->addColumn('mimetype', Type::BIGINT, [
 				'notnull' => true,
-				'length' => 4,
+				'length' => 20,
 				'default' => 0,
 			]);
-			$table->addColumn('mimepart', 'integer', [
+			$table->addColumn('mimepart', Type::BIGINT, [
 				'notnull' => true,
-				'length' => 4,
+				'length' => 20,
 				'default' => 0,
 			]);
 			$table->addColumn('size', 'bigint', [
diff --git a/core/Migrations/Version13000Date20170926101637.php b/core/Migrations/Version13000Date20170926101637.php
index 3eea8a8a3b9db9bb8f36e691a56efe39457dad07..ded34cedd39a7b67b66f61961e3788e95c48a3ad 100644
--- a/core/Migrations/Version13000Date20170926101637.php
+++ b/core/Migrations/Version13000Date20170926101637.php
@@ -22,15 +22,15 @@ class Version13000Date20170926101637 extends BigIntMigration {
 			'authtoken' => ['id'],
 			'bruteforce_attempts' => ['id'],
 			'comments' => ['id', 'parent_id', 'topmost_parent_id'],
-			'filecache' => ['fileid', 'storage', 'parent', 'mimetype', 'mimepart'],
+			// Disabled for now 'filecache' => ['fileid', 'storage', 'parent', 'mimetype', 'mimepart'],
 			'file_locks' => ['id'],
 			'jobs' => ['id'],
-			'mimetypes' => ['id'],
+			// Disabled for now 'mimetypes' => ['id'],
 			'mounts' => ['id'],
 			'personal_settings' => ['id'],
 			'properties' => ['id'],
 			'share' => ['id', 'parent', 'file_source'],
-			'storages' => ['numeric_id'],
+			// Disabled for now 'storages' => ['numeric_id'],
 			'systemtag' => ['id'],
 			'systemtag_group' => ['systemtagid'],
 			'systemtag_object_mapping' => ['systemtagid'],
diff --git a/core/register_command.php b/core/register_command.php
index 02bdbedc6e08559c741d2e903d85b081b3148517..3cba056599383abe3c1cb3af60cdae224ca97787 100644
--- a/core/register_command.php
+++ b/core/register_command.php
@@ -85,6 +85,7 @@ if (\OC::$server->getConfig()->getSystemValue('installed', false)) {
 
 	$application->add(new OC\Core\Command\Db\ConvertType(\OC::$server->getConfig(), new \OC\DB\ConnectionFactory(\OC::$server->getSystemConfig())));
 	$application->add(new OC\Core\Command\Db\ConvertMysqlToMB4(\OC::$server->getConfig(), \OC::$server->getDatabaseConnection(), \OC::$server->getURLGenerator(), \OC::$server->getLogger()));
+	$application->add(new OC\Core\Command\Db\ConvertFilecacheBigInt(\OC::$server->getDatabaseConnection()));
 	$application->add(new OC\Core\Command\Db\Migrations\StatusCommand(\OC::$server->getDatabaseConnection()));
 	$application->add(new OC\Core\Command\Db\Migrations\MigrateCommand(\OC::$server->getDatabaseConnection()));
 	$application->add(new OC\Core\Command\Db\Migrations\GenerateCommand(\OC::$server->getDatabaseConnection()));
diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index 489b9b3dc1458a6caf39a8b9a949db02b33828d1..07f815f85ce34b0ae6e2cd4052a05d87837198b2 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -440,6 +440,7 @@ return array(
     'OC\\Core\\Command\\Config\\System\\DeleteConfig' => $baseDir . '/core/Command/Config/System/DeleteConfig.php',
     'OC\\Core\\Command\\Config\\System\\GetConfig' => $baseDir . '/core/Command/Config/System/GetConfig.php',
     'OC\\Core\\Command\\Config\\System\\SetConfig' => $baseDir . '/core/Command/Config/System/SetConfig.php',
+    'OC\\Core\\Command\\Db\\ConvertFilecacheBigInt' => $baseDir . '/core/Command/Db/ConvertFilecacheBigInt.php',
     'OC\\Core\\Command\\Db\\ConvertMysqlToMB4' => $baseDir . '/core/Command/Db/ConvertMysqlToMB4.php',
     'OC\\Core\\Command\\Db\\ConvertType' => $baseDir . '/core/Command/Db/ConvertType.php',
     'OC\\Core\\Command\\Db\\Migrations\\ExecuteCommand' => $baseDir . '/core/Command/Db/Migrations/ExecuteCommand.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index 1297f4606f688bf2ad2f7269fb1c108aa1748b3c..0d327b7267ff543f7aaa64ea4e6269d40d4b1162 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -470,6 +470,7 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OC\\Core\\Command\\Config\\System\\DeleteConfig' => __DIR__ . '/../../..' . '/core/Command/Config/System/DeleteConfig.php',
         'OC\\Core\\Command\\Config\\System\\GetConfig' => __DIR__ . '/../../..' . '/core/Command/Config/System/GetConfig.php',
         'OC\\Core\\Command\\Config\\System\\SetConfig' => __DIR__ . '/../../..' . '/core/Command/Config/System/SetConfig.php',
+        'OC\\Core\\Command\\Db\\ConvertFilecacheBigInt' => __DIR__ . '/../../..' . '/core/Command/Db/ConvertFilecacheBigInt.php',
         'OC\\Core\\Command\\Db\\ConvertMysqlToMB4' => __DIR__ . '/../../..' . '/core/Command/Db/ConvertMysqlToMB4.php',
         'OC\\Core\\Command\\Db\\ConvertType' => __DIR__ . '/../../..' . '/core/Command/Db/ConvertType.php',
         'OC\\Core\\Command\\Db\\Migrations\\ExecuteCommand' => __DIR__ . '/../../..' . '/core/Command/Db/Migrations/ExecuteCommand.php',