--- /a/src/udiskslinuxprovider.c
+++ /b/src/udiskslinuxprovider.c
@@ -465,8 +465,10 @@
   g_list_free_full (udisks_devices, g_object_unref);
   udisks_info ("Initialization complete");
 
-  /* schedule housekeeping for every 10 minutes */
-  provider->housekeeping_timeout = g_timeout_add_seconds (10*60,
+  /* schedule housekeeping for every 15 minutes*/
+  /* (when using 10 minutes, some Seagate disks won't go to sleep, since 
+     their minimum sleep time is 10 minutes and the housekeeping resets the timer of the disk)*/
+  provider->housekeeping_timeout = g_timeout_add_seconds (15*60,
                                                           on_housekeeping_timeout,
                                                           provider);
   /* ... and also do an initial run */