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
- Log in to the CBH system.
- Choose System > Data Maintain > Storage Mgmt.
- In the Auto Deletion area, click Edit. In the displayed dialog box, set related parameters.
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
- Click OK.
Manual Deletion
- Log in to the CBH system.
- Choose System > Data Maintain > Storage Mgmt.
- In the Manual Deletion area, select a date.
- Click Delete. Data generated before the selected date is deleted.
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