System Setting

Overview

System Setting: System setting consists of email server, theme setting, and global setting.

Related Definitions

Email Server: If you select Email as the endpoint of an alarm, you need to add an email server. Then alarm messages are sent to the email server.
Theme Setting: You can customize the theme and appearance of the platform.
Global Setting: Global Setting allows you to configure settings that take effect on the whole platform.

Email Server

Add an Email Server

On the main menu of ZStack ZStone, choose System Setting > Email Server. On the Email Server page, click Add Email Server.

Set the following parameters:

Name: Set the name for the endpoint.
Naming rules: 1-128 characters long. A name can contain Chinese characters, letters, digits, spaces, hyphens (-), underscores (_), periods (.), parenthesis (), colons (:), and plus signs (+). You cannot start or end with a space.
User Name: Optional. You can enter the user name for the email server.
Password/Authorization Code: Optional. You can enter the password in this field.
Note: If you use a public SMTP server as an email server, remember to enable POP3/SMTP in the server settings. You have to enter the authorization code you have obtained.
Email Server Type: The default type is smtp.
Email Server: Enter the email server address, for example, smtp.xxx.com/172.20.16.255.
Port: Enter the server port. The default is 25.
Email Test: Verify server connectivity. This option is disabled by default.
Test Email Address: Enter the email address to test.
Encryption Type: You can encrypt connections to the ports of your email servers. By default, the encryption type STARTTLS/NONE is selected.
Note:
1. When the encryption type STARTTLS/NONE is selected, the system automatically detects and switches port encryption protocols.
2. If you select SSL/TLS, the corresponding default port is 465.

Manage an Email Server

On the main menu of ZStack ZStone, choose System Setting > Email Server. Then, the Email Server page is displayed.

The following actions help to manage email servers:

Action	Description
Add Email Server	Add an email server.
Delete	Delete the selected email server.

Theme Setting

On the main menu of ZStack ZStone, choose System Setting > Theme Setting. Then, the Theme Setting page is displayed.

Customize the Theme and Appearance

On the Theme Setting page, you can configure title setting for browser, login interface, and platform interface.

Set Browser Title

Favicon: Set the browser icon.
Note: Upload a file in ICO format. The file must be no greater than 2 MB in size.
Chinese Title: Set the Chinese title for the browser.
Note: The field must be 1-30 characters in length.
English Title: Set the English title for the browser.
Note: The field must be 1-30 characters in length.

Set Login Interface Title

Logo: Set the logo for the login interface.
Note: Upload a JPG, JPEG, PNG, or SVG image that is within 2 MB.
Chinese Title: Set the Chinese title for the login interface.
Note: The field must be 1-30 characters in length.
English Title: Set the English title for the login interface,
Note: The field must be 1-30 characters in length.

Set Platform Interface Title

Logo: Set the logo for the platform interface.
Note:
1. Upload a JPG, JPEG, PNG, or SVG image that is within 2 MB.
2. We recommend you upload a white or light-colored logo.
Chinese Title: Set the Chinese title for the platform interface.
Note: The field must be 1-30 characters in length.
English Title: Set the English title for the platform interface,
Note: The field must be 1-30 characters in length.
Font Size: Set the font size of the platform interface title. Three sizes are provided: Large (16), Medium (14), and Small (12). Default: Medium (14).

Restore to Default

After you set the theme and appearance, you can clear up the current configurations by clicking Restore to Default.

Global Setting

On the main menu of ZStack ZStone, choose System Setting > Global Setting. Then, the Global Setting page is displayed.

Global Setting consists of Basic Setting and Advanced Setting. You can configure settings as needed.

Basic Setting

Currently, Basic Setting includes the following parameters.

Category	Parameter	Description
Basic Settings for General Purpose Storage	Data Recovery	Specify the data recovery policies of all storage pools in the cluster. Default value: true. The platform will recover data for incomplete replicas and data blocks in the storage pool. Note: If you want to disable data recovery, note that: The system will not perform data recovery for all data in the storage pool. Proceed with caution. If you perform scale-in operations on a storage pool, it may cause data loss. Proceed with caution. If you set recovery QoS for a storage pool, the specified QoS will take effect after you enable data recovery.
Basic Settings for General Purpose Storage	Data Disk Capacity Threshold	Specify the maximum capacity threshold for all data disks of all storage pools in the cluster. You can set two types of threshold, that is, Data Backfill Threshold and Data Write Threshold. Data Backfill Threshold: Allows you to set a threshold for data migration. Default value: 85%. If the data disk capacity utilization exceeds the specified threshold value, the relevant data migration task will be paused. Note: When you perform operations like removing data disks and modifying the replica value, the distributed storage platform automatically forecasts the pool capacity utilization and compares it to the Backfill Threshold. Data Write Threshold: Allows you to set a threshold for data writes. Default value: 90%. If the data disk capacity utilization exceeds the specified threshold value, new writes to the data disk will be denied. Valid Threshold Range: 80% < Data Backfill Threshold < Data Write Threshold ≤ 95%, with 5% reserved for the system.

Advanced Setting

Currently, Advanced Setting includes the following parameters as shown in the table below:

Category	Parameter	Description
/	Multiple-Platform Addition	Default: Disabled. When enabled, you can manage a third-party advanced object storage by entering Platform IP & Port, User Name, and Password.
High Risk Operations for General Purpose Storage	Single Replica	Specify whether to set the number of replicas to 1. Default value: false. If set to true, you can set the number of replicas to 1 when creating a storage pool or modifying replicas. Note: If set to true, the pools for which the replicas have already been specified are not affected. Enabling single replica is a high-risk operation and may cause data loss. Avoid setting the number of replicas to 1 in a production environment. If one existing storage pool has been set as single replica, this option must be enabled. You can modify the number of replicas and try again.
High Risk Operations for General Purpose Storage	High-Speed Recovery QoS	Specify whether to select high-speed recovery QoS for a storage pool. Default value: false. If set to true, you can select high-speed recovery when setting recovery QoS for a storage pool. Note: If set to true, the pools for which the recovery QoS has already been set are not affected. Enabling high-speed recovery QoS is a high-risk operation and may affect your business when the performance is saturated. We do not recommend that you enable this option in a production environment. If one existing storage pool has been set the recovery QoS, this option must be enabled. You can modify the recovery QoS mode and try again.
High Risk Operations for High-performance Purpose Storage	High-Speed Recovery QoS	Specify whether to select high-speed recovery QoS for a storage pool. Default value: false. If set to true, you can select high-speed recovery when setting recovery QoS for a storage pool. Note: If set to true, the pools for which the recovery QoS has already been set are not affected. Enabling high-speed recovery QoS is a high-risk operation and may affect your business when the performance is saturated. We do not recommend that you enable this option in a production environment. If one existing storage pool has been set the recovery QoS, this option must be enabled. You can modify the recovery QoS mode and try again.

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