HIKVISION HWN Series User Manual page 87

Enable HDD Sleeping
HDDs which are free of working for a long time will turn into sleep status.
Save Camera VCA Data
Camera VCA data will be saved so that you can search it.
Alarm Storage
When the HDD free space is not enough, you can disable it to save space, but your device will
stop storing alarm information.
Picture Storage
When the HDD free space is not enough, you can disable it to save space, but your device will
stop storing pictures.
Network Video Recorder User Manual
75