--- a/sat/memory/memory.py	Thu Jun 03 15:15:11 2021 +0200
+++ b/sat/memory/memory.py	Thu Jun 03 15:20:47 2021 +0200
@@ -33,7 +33,7 @@
 from sat.core.log import getLogger
 from sat.core import exceptions
 from sat.core.constants import Const as C
-from sat.memory.sqlite import SqliteStorage
+from sat.memory.sqla import Storage
 from sat.memory.persistent import PersistentDict
 from sat.memory.params import Params
 from sat.memory.disco import Discovery
@@ -228,7 +228,6 @@
 
     def __init__(self, host):
         log.info(_("Memory manager init"))
-        self.initialized = defer.Deferred()
         self.host = host
         self._entities_cache = {}  # XXX: keep presence/last resource/other data in cache
         #     /!\ an entity is not necessarily in roster
@@ -240,19 +239,22 @@
         self.disco = Discovery(host)
         self.config = tools_config.parseMainConf(log_filenames=True)
         self._cache_path = Path(self.getConfig("", "local_dir"), C.CACHE_DIR)
+
+    async def initialise(self):
         database_file = os.path.expanduser(
             os.path.join(self.getConfig("", "local_dir"), C.SAVEFILE_DATABASE)
         )
-        self.storage = SqliteStorage(database_file, host.version)
+        self.storage = Storage(database_file, self.host.version)
+        await self.storage.initialise()
         PersistentDict.storage = self.storage
-        self.params = Params(host, self.storage)
+        self.params = Params(self.host, self.storage)
         log.info(_("Loading default params template"))
         self.params.load_default_params()
-        d = self.storage.initialized.addCallback(lambda ignore: self.load())
+        await self.load()
         self.memory_data = PersistentDict("memory")
-        d.addCallback(lambda ignore: self.memory_data.load())
-        d.addCallback(lambda ignore: self.disco.load())
-        d.chainDeferred(self.initialized)
+        await self.memory_data.load()
+        await self.disco.load()
+
 
     ## Configuration ##