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Updated on 2023-09-22 GMT+08:00
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Deleting System Data

If the system data disk usage is higher than 95%, the system may become unavailable. To ensure that the system data disk can be used properly, you can configure automatic or manual deletion of system data by referring to this section.

The system data that is automatically or manually deleted is mainly the files temporarily stored on the data disk, including large historical session video files, local backup log files, and local backup system configuration files.

Deleted system data cannot be restored. Exercise caution when performing this operation.

Constraints

Data of a specific day cannot be deleted through Manual Deletion. You can delete the data before the date you select.

Prerequisites

You have the management permissions for the System module.

Configuring Auto Deletion

  1. Log in to the CBH system.
  2. Choose System > Data Maintain > Storage Mgmt.
  3. In the Auto Deletion area, click Edit. In the displayed dialog box, set related parameters.

    Figure 1 Configuring Auto Deletion
    Table 1 Configuring Auto Deletion

    Parameter

    Description

    Auto Deletion

    Status of auto deletion (default: ).

    • : Auto deletion is enabled. The system automatically starts the data deletion job when the data storage duration and data disk usage exceeds the limit.
    • : Auto deletion is disabled.

    Data life (days)

    Data storage duration. The data is automatically deleted when its storage duration exceeds the specified value.

    • Default value: 180 days.
    • Value range: 1 to 10000, in days.

    Overwrite when full

    When the data disk usage exceeds 90%, data on the disk will be automatically deleted.

    Whether to enable this function (default: ).

    • : This function is disabled
    • : This function is enabled.
    • Auto deletion policies:
      • The system checks the data disk usage every 30 minutes. When the usage is lower than 90%, the auto deletion stops.
      • By default, the system deletes data generated 180 days earlier than the current day.
      • If the data disk usage is still higher than 90%, the rest data is deleted day by day backwards from the day before the current day until the space usage is lower than 90%
      • Data of the current day cannot be automatically deleted.

    Delete Content

    The options are as follows:

    • System Log
    • Session Log

  4. Click OK.

    Figure 2 Auto Deletion

Manual Deletion

  1. Log in to the CBH system.
  2. Choose System > Data Maintain > Storage Mgmt.
  3. In the Manual Deletion area, select a date.
  4. Click Delete. Data generated before the selected date is deleted.
Parent topic: Data Maintenance