diff --git a/lib/check/guests.py b/lib/check/guests.py
index 3eda4ef..9b8a6af 100644
--- a/lib/check/guests.py
+++ b/lib/check/guests.py
@@ -37,21 +37,8 @@ async def check_guests(
 
     guests = [{
         'name': str(d['vmid']),  # str
-        'status': d['status'],  # ???
-        'vmid': d['vmid'],  # ???
-        'cpu': d.get('cpu'),  # ???
-        'cpus': d.get('cpus'),  # ???
-        'disk': d.get('disk'),  # ???
-        'diskread': d.get('diskread'),  # ???
-        'diskwrite': d.get('diskwrite'),  # ???
-        'maxdisk': d.get('maxdisk'),  # ???
-        'maxmem': d.get('maxmem'),  # ???
-        'mem': d.get('mem'),  # ???
-        'netin': d.get('netin'),  # ???
-        'netout': d.get('netout'),  # ???
-        'pid': d.get('pid'),  # ???
-        'uptime': d.get('uptime'),  # ???
-        'vmname': d.get('name'),  # ???
+        'status': d['status'],  # str
+        'vm_name': d.get('name'),  # str
     } for d in data['data']]
     return {
         'guests': guests
diff --git a/lib/check/network.py b/lib/check/network.py
index c650eb3..0a9776f 100644
--- a/lib/check/network.py
+++ b/lib/check/network.py
@@ -1,6 +1,8 @@
 import aiohttp
+from typing import Optional
 from libprobe.asset import Asset
 from libprobe.exceptions import CheckException
+from ..utils import to_bool
 
 
 DEFAULT_PORT = 8006
@@ -37,22 +39,21 @@ async def check_network(
 
     network = [{
         'name': d['iface'],  # str
-        'active': d.get('active'),  # ???, optional
-        'address': d.get('address'),  # str, optional
-        'autostart': d.get('autostart'),  # ???, optional
-        'bridge_fd': d.get('bridge_fd'),  # ???, optional
-        'bridge_ports': d.get('bridge_ports'),  # ???, optional
-        'bridge_stp': d.get('bridge_stp'),  # ???, optional
-        'cdir': d.get('cdir'),  # ???, optional
-        'exists': d.get('exists'),  # ???, optional
-        'families': d.get('families'),  # ???
-        'gateway': d.get('gateway'),  # ???, optional
-        'method': d.get('method'),  # ???
-        'method6': d.get('method6'),  # ???
-        'netmask': d.get('netmask'),  # ??? optional
-        'priority': d.get('priority'),  # ???
-        'type': d.get('type'),  # ???
-
+        'active': d.get('active'),  # int/optional
+        'address': d.get('address'),  # str/optional
+        'autostart': to_bool(d.get('autostart')),  # int/optional
+        'bridge_fd': d.get('bridge_fd'),  # str/optional
+        'bridge_ports': d.get('bridge_ports'),  # str/ optional
+        'bridge_stp': d.get('bridge_stp'),  # str/optional
+        'cdir': d.get('cdir'),  # str/optional
+        'exists': to_bool(d.get('exists')),  # int/optional
+        'families': d.get('families'),  # liststr/optional
+        'gateway': d.get('gateway'),  # str/optional
+        'method': d.get('method'),  # str
+        'method6': d.get('method6'),  # str
+        'netmask': d.get('netmask'),  # str/optional
+        'priority': d.get('priority'),  # int
+        'type': d.get('type'),  # str
     } for d in data['data']]
     return {
         'network': network
diff --git a/lib/check/storage.py b/lib/check/storage.py
index a187951..fe6a849 100644
--- a/lib/check/storage.py
+++ b/lib/check/storage.py
@@ -1,6 +1,7 @@
 import aiohttp
 from libprobe.asset import Asset
 from libprobe.exceptions import CheckException
+from ..utils import to_bool, to_list_str
 
 
 DEFAULT_PORT = 8006
@@ -36,17 +37,16 @@ async def check_storage(
             data = await resp.json()
 
     storage = [{
-        'name': d['storage'],  # ???
-        'content': d['content'],  # ???
-        'type': d['type'],  # ???
-        'active': d.get('active'),  # ???
-        'avail': d.get('avail'),  # ???
-        'enabled': d.get('enabled'),  # ???
-        # 'format': d.get('format'),  # ???
-        'shared': d.get('shared'),  # ???
-        'total': d.get('total'),  # ???
-        'used': d.get('used'),  # ???
-        'used_fraction': d.get('used_fraction'),  # ???
+        'name': d['storage'],  # str
+        'content': to_list_str(d['content']),  # liststr
+        'type': d['type'],  # str
+        'active': to_bool(d.get('active')),  # bool
+        'avail': d.get('avail'),  # int
+        'enabled': to_bool(d.get('enabled')),  # bool
+        'shared': to_bool(d.get('shared')),  # bool
+        'total': d.get('total'),  # int
+        'used': d.get('used'),  # int
+        'used_fraction': d.get('used_fraction'),  # int
     } for d in data['data']]
     return {
         'storage': storage
diff --git a/lib/utils.py b/lib/utils.py
new file mode 100644
index 0000000..d1bbbb1
--- /dev/null
+++ b/lib/utils.py
@@ -0,0 +1,13 @@
+from typing import Optional, List
+
+
+def to_bool(val: Optional[int]) -> bool:
+    if val is None:
+        return
+    return bool(val)
+
+
+def to_list_str(val: Optional[str]) -> List[str]:
+    if val is None or not isinstance(val, str):
+        return
+    return val.split(',')