Why is my NAS filling when there's no motion?

[anderson110]

I have set up a hikvision DS-2CD3132F-IWS (firmware V5.2.5), set up NAS storage for it, and set the schedule recording functions to record on motion. When I access the "playback" function, it does appear that only motion events are available for download.

However, my NAS has accumulated 13GB of disk usage in a 12 hour period and is accumulating another MB every second or two. This seems like it's recording continuously, even though it is set to motion only 24/7.

Any ideas why this is occurring?

 

[anderson110]

I have set up a hikvision DS-2CD3132F-IWS (firmware V5.2.5), set up NAS storage for it, and set the schedule recording functions to record on motion. When I access the "playback" function, it does appear that only motion events are available for download.

However, my NAS has accumulated 13GB of disk usage in a 12 hour period and is accumulating another MB every second or two. This seems like it's recording continuously, even though it is set to motion only 24/7.

Any ideas why this is occurring?

Could this be an artifact of the "pre-record" functionality? Does it just continuously record in order to have this footage available, and then only index those regions that are correspond to motion detection?

If so, that would be disappointing, since that's a significant load on the network that I was hoping to avoid.

 

[alastairstevenson]

Could this be an artifact of the "pre-record" functionality? Does it just continuously record in order to have this footage available, and then only index those regions that are correspond to motion detection?

If so, that would be disappointing, since that's a significant load on the network that I was hoping to avoid.

No - it doesn't index into a continuous recording, but it does maintain a pre-record buffer that gets solidified into the head of a motion detection recording.

However, my NAS has accumulated 13GB of disk usage in a 12 hour period and is accumulating another MB every second or two. This seems like it's recording continuously, even though it is set to motion only 24/7.

What files can you see in the NetHDD destination?
Usually the 'format' operation of initiallising the NAS share fills it with placeholder files each video file being of full size as configured, with files being re-used as needed, so aggregate used size is about constant.
Does your NAS have a 'Network Recycle Bin' that's being counted in your space observations?

 

[anderson110]

No - it doesn't index into a continuous recording, but it does maintain a pre-record buffer that gets solidified into the head of a motion detection recording.

Does that buffer grow to fill the available space?

What files can you see in the NetHDD destination?
Usually the 'format' operation of initiallising the NAS share fills it with placeholder files each video file being of full size as configured, with files being re-used as needed, so aggregate used size is about constant.

Yes, "format" created a bunch of datadir<N>/ directories, within which there was a large number of empty hiv000<N>.mp4 files, along with some files that look like metadata.

With the NAS activated, datadir2 started filling all of the hiv000XX.mp4 files in order, until they were 256 MB each, then it would move onto the next one.

Does your NAS have a 'Network Recycle Bin' that's being counted in your space observations?

My "NAS" is actually just a linux box with a samba share. So I'm measuring disk usage with du, and I can see the mp4 files filling up with ls -lh.

 

[alastairstevenson]

Does that buffer grow to fill the available space?

Not that I'm aware of, it's a rolling buffer.
It's a while since I looked at this, I'll see if I can set up a spare camera to explore it.
From what you've described, it sounds like continuous recording is occurring.

 

[alastairstevenson]

OK, so I set up a spare DS-2CD3332-I (fw 5.2.3) with a fresh 200GB NetHDD SMB/CIFS NAS destination and 'formatted' it.
Contrary to what I stated earlier, the placeholder *.mp4 files were created with 0 length. I'd been looking at a share that had previously been used and overwritten and got mixed up.
Apologies for the misinformation.

After setting the camera to record on 'All events' I don't see any steady growth in used space in the absence of any basic or smart events, after running for about 50 minutes.
On the first event, the first file was set to the full 256MB size, with subsequent events being appended within the same file, as confirmed by playing the file with VLC. I didn't create enough events for it to move to the next file.
Can I suggest that you play one of your files with VLC and confirm that it is a continuous recording?
And check what (colour) you have in the Storage | Record Schedule settings?

alastair@PC-I5 /run/user/1000/gvfs/smb-share:server=kinkellmain.local,share=cctv1 $ du
358581    ./datadir0
49556    ./datadir1
49556    ./datadir2
457693    .
alastair@PC-I5 /run/user/1000/gvfs/smb-share:server=kinkellmain.local,share=cctv1 $ ls -lh datadir0
total 351M
-rwx------ 1 alastair alastair 6.3K Nov 20 22:09 backupinfo00.bin
-rwx------ 1 alastair alastair 6.3K Nov 20 22:09 backupinfo01.bin
-rwx------ 1 alastair alastair  512 Nov 20 22:12 HIKWS
-rwx------ 1 alastair alastair 256M Nov 20  2016 hiv00000.mp4
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00000.pic
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00001.mp4
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-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00186.mp4
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00187.mp4
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00188.mp4
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00189.mp4
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00190.mp4
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00191.mp4
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00192.mp4
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00193.mp4
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00194.mp4
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00195.mp4
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00196.mp4
-rwx------ 1 alastair alastair    0 Nov 20 22:08 hiv00197.mp4
-rwx------ 1 alastair alastair 3.9M Nov 20 22:47 index00.bin
-rwx------ 1 alastair alastair  21M Nov 20 22:08 index00p.bin
-rwx------ 1 alastair alastair 3.9M Nov 20 22:47 index01.bin
-rwx------ 1 alastair alastair  21M Nov 20 22:08 index01p.bin
-rwx------ 1 alastair alastair  16M Nov 20  2016 logCurFile.bin
-rwx------ 1 alastair alastair  31M Nov 20 22:09 logMainFile.bin
alastair@PC-I5 /run/user/1000/gvfs/smb-share:server=kinkellmain.local,share=cctv1 $

 

[anderson110]

OK, so I set up a spare DS-2CD3332-I (fw 5.2.3) with a fresh 200GB NetHDD SMB/CIFS NAS destination and 'formatted' it.
Contrary to what I stated earlier, the placeholder *.mp4 files were created with 0 length. I'd been looking at a share that had previously been used and overwritten and got mixed up.
Apologies for the misinformation.

After setting the camera to record on 'All events' I don't see any steady growth in used space in the absence of any basic or smart events, after running for about 50 minutes.
On the first event, the first file was set to the full 256MB size, with subsequent events being appended within the same file, as confirmed by playing the file with VLC. I didn't create enough events for it to move to the next file.
Can I suggest that you play one of your files with VLC and confirm that it is a continuous recording?
And check what (colour) you have in the Storage | Record Schedule settings?

The detailed help is very much appreciated.

The record schedule is showing green as expected. I also was able to use the http API to download an xml description of the recording schedule, and it showed everything as set to MOTION. I was even able to modify it using http PUT, and the changes showed up in the web interface as expected. So I'm pretty sure that part of it is configured as intended.

I just noticed something interesting, though. I see the expected behavior in datadir0, with events causing the size to grow, but with datadir2 growing continuously. Am I continuously recording the substream or something? Still unsure what could be causing this. I can look at the files in vlc and in datadir2, they are continuous recordings, and in datadir0, they are the motion activated clips!

while [ 1 ]; do date | tr '\n' '|'; du -sh * | egrep "datadir[02]" | tr '\n' '|'; echo ""; sleep 1; done
Sun Nov 20 15:17:15 PST 2016|273M    datadir0|279M    datadir2|
Sun Nov 20 15:17:16 PST 2016|273M    datadir0|279M    datadir2|
Sun Nov 20 15:17:17 PST 2016|273M    datadir0|279M    datadir2|
Sun Nov 20 15:17:18 PST 2016|273M    datadir0|280M    datadir2|
Sun Nov 20 15:17:19 PST 2016|273M    datadir0|280M    datadir2|
Sun Nov 20 15:17:20 PST 2016|273M    datadir0|280M    datadir2|
Sun Nov 20 15:17:22 PST 2016|273M    datadir0|281M    datadir2|
Sun Nov 20 15:17:23 PST 2016|273M    datadir0|281M    datadir2|
Sun Nov 20 15:17:24 PST 2016|273M    datadir0|281M    datadir2|
Sun Nov 20 15:17:25 PST 2016|273M    datadir0|282M    datadir2|
Sun Nov 20 15:17:26 PST 2016|273M    datadir0|282M    datadir2|
Sun Nov 20 15:17:27 PST 2016|273M    datadir0|283M    datadir2|

 

[alastairstevenson]

Well, you seem to have covered all bases on the configuration.

I can look at the files in vlc and in datadir2, they are continuous recordings, and in datadir0, they are the motion activated clips!

Maybe a bug in the firmware.
Sometimes odd things happen when there is an inconsistency inside a configuration file.
Presumably it wouldn't be a big effort to reset back to factory defaults, reconfigure and re-test?
This has been known to help with odd behaviour.