diff --git a/programs/cmm/sysmon/drives.h b/programs/cmm/sysmon/drives.h
new file mode 100644
index 0000000000..6418cf94e0
--- /dev/null
+++ b/programs/cmm/sysmon/drives.h
@@ -0,0 +1,72 @@
+
+void Drives__Main()
+{
+	SetEventMask(EVM_REDRAW + EVM_KEY + EVM_BUTTON);
+	goto _GENERAL_REDRAW_1;
+	loop()
+	{
+		WaitEventTimeout(500);
+		switch(EAX & 0xFF)
+		{
+			case evButton: Sysmon__ButtonEvent(); break;
+			case evKey: Sysmon__KeyEvent(); break;
+			case evReDraw: 
+				_GENERAL_REDRAW_1: 
+				Sysmon__DefineAndDrawWindow(); 
+				WriteText(WIN_PAD, WIN_CONTENT_Y+25, 0x90, sc.work, "Update period: 5 seconds");
+			default:
+				MonitorRd();
+				MonitorTmp();
+		}
+	}
+}
+
+void MonitorRd()
+{
+	sensor rd;
+	dword rdempty = malloc(1440*1024);
+	rd.set_size(WIN_PAD, WIN_CONTENT_Y+25, WIN_CONTENT_W, 23);
+	CreateFile(0, 1440*1024, rdempty, "/rd/1/rdempty");
+	free(rdempty);
+	file_size stdcall ("/rd/1/rdempty");
+	rdempty = EBX / 1024;
+	DeleteFile("/rd/1/rdempty");
+
+	sprintf(#param, "System disk usage: %i Kb free of 1440 Mb", rdempty);
+	DrawIconWithText(WIN_PAD, rd.y - 25, 5, #param);
+
+	rd.draw_progress(rdempty * rd.w / 1440);	
+}
+
+dword GetTmpDiskFreeSpace(int _id)
+{
+	DIR_SIZE dir_size;
+	sprintf(#param, "/tmp%i/1", _id);
+	dir_size.get(#param);
+	dir_size.bytes += dir_size.files/2 + 32 * 512; //file attr size + FAT table size
+	dir_size.bytes /= 1024*1024; //convert to MiB
+	return dir_size.bytes;	
+}
+
+void MonitorTmp()
+{
+	char text_status[64];
+	int i, yy=WIN_CONTENT_Y+95;
+	dword tmp_size[10];
+	dword free_space;
+	sensor tmp;
+	for (i=0; i<=9; i++) 
+	{
+		file_size stdcall ( sprintf(#param, "/tmp%i/1", i) );
+		tmp_size[i] =  EBX / 1024 / 1024;
+
+		if (EBX) {
+			free_space = tmp_size[i] - GetTmpDiskFreeSpace(i);
+			sprintf(#text_status, "TMP%i usage: %i Mb free of %i Mb", i, free_space, tmp_size[i]);
+			tmp.set_size(WIN_PAD, yy, WIN_CONTENT_W, 23);
+			tmp.draw_progress(free_space * WIN_CONTENT_W / tmp_size[i]);
+			DrawIconWithText(WIN_PAD, tmp.y - 25, 50, #text_status);
+			yy += 65;
+		}
+	}
+}
\ No newline at end of file