yes, I understand these, but what troubles me are these error:
Apr 7 17:50:27 185409 emhttpd: error: update_ini, 711: No such file or directory (2): rename: /var/local/emhttp/disks.ini.new /var/local/emhttp/disks.ini
Apr 7 17:50:28 185409 emhttpd: error: update_ini, 711: No such file or directory (2): rename: /var/local/emhttp/disks.ini.new /var/local/emhttp/disks.ini
Apr 7 17:50:29 185409 emhttpd: error: update_ini, 704: No such file or directory (2): unlink: /var/local/emhttp/var.ini.new
Apr 7 17:50:29 185409 emhttpd: error: update_ini, 711: No such file or directory (2): rename: /var/local/emhttp/disks.ini.new /var/local/emhttp/disks.ini
Apr 7 17:50:29 185409 emhttpd: error: update_ini, 711: No such file or directory (2): rename: /var/local/emhttp/shares.ini.new /var/local/emhttp/shares.ini
Apr 7 17:50:29 185409 emhttpd: error: update_ini, 711: No such file or directory (2): rename: /var/local/emhttp/sec.ini.new /var/local/emhttp/sec.ini
Apr 7 17:50:29 185409 emhttpd: error: update_ini, 711: No such file or directory (2): rename: /var/local/emhttp/sec_nfs.ini.new /var/local/emhttp/sec_nfs.ini
Apr 7 17:50:30 185409 emhttpd: error: update_ini, 711: No such file or directory (2): rename: /var/local/emhttp/var.ini.new /var/local/emhttp/var.ini
and the UI laggy happens from time to time, but after many test, I noticed this laggy sometimes go away when I restart the NAS, sometimes it doesn't, I don't know if this related to any error showing in the log.