About storage space

Answered

Masashi Katsuta

May 19, 2021 08:00

Hi, I have three questions about the storage.

Q1.
When I check the amount of Free Space on WebAdmin, I can get the information of the details like the image below showing the Occupied space as 22.44 GB.
If I add some cameras to this server, how the value of this space change?

Q2. If the size of SSD is changed (ex. from 64GB to 412GB), are the sizes of their Occupied space different?

Q3. Does the amount of the Occupied space change depend on the kinds of cameras?

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• 

  Roman Yuldashev

  May 19, 2021 17:26 Edited

  Hello Masashi Katsuta,

  This disk space that displays how many GB (or MB, TB...) is occupied on your internal hard drives or Direct-Attached Storage (DAS) or Network-Attached Storage (NAS). It shows the occupied space by any files, not just by Nx Witness files.

  1. If you add cameras and enable recording on them, the occupied space will change depending on the size of the video files recorded on the cameras.
  2. It does not depend on the maximum size of the SSD.
  3. Different cameras have different capabilities. Depending on the quality and with what bit rate the camera records the video, the occupied space will change.

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  Permanently deleted user

  May 20, 2021 06:28

  Hi Roman,

  Thank you for sharing the information.
  I am Keisuke Sawada, a colleges of Masashi.

  Now we need to inform it to our customer about how much disk space can be used for their recording.
  Because the Nx Witness works on our edge gateway which has limited disk size (SSD from 64G).
  So let me continuously confirm more details.

  Q1. Our understanding is following, could you confirm it?

  • Total Size = Free Space + Occupied.
  • Occupied = Reserved (by Nx Witness) + recorded movie (.mkv, by Nx Witness) + consumed by other application.

  Q2. May I know the objective of "Reserved" area? And if possible, could you give us a location of the reserved area?
  To know the size of "Reserved", we have checked this article.
  https://support.networkoptix.com/hc/en-us/articles/229345767-Adjust-Reserved-Disk-Space

  Q3. Is the total area of Reserved allocated on the disk right after launching media server?
  Or dynamically allocate it?

  Best Regards,
  Kei (Keisuke Sawada)

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  Roman Yuldashev

  May 22, 2021 03:12 Edited

  Hello @...

  1. Total Size = Free Space + Occupied.
  Free Space = Reserved + free space.
  Occupied = space consumed by any files.
  2. Reserved space is the space that is reserved to ensure a correct write-ratio calculation and to improve overall system stability. There is no specific location for this space.
  3. For a more complete understanding of How does Nx Witness manage storage, please refer to THIS article.

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  Permanently deleted user

  May 24, 2021 12:19

  Hello Roman,

  Thank you for handling my questions. I understood details.

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