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Process of Using DCS How to Manage DCS Instances You can access Distributed Cache Service (DCS) from the web-based management console or by using RESTful application programming interfaces (APIs) through HTTPS requests. Using the console You can sign up and log in to the console,
Restarting a DCS Instance To recover an instance in cases such as high memory fragmentation ratio or fault occurrence, try restarting the instance on the DCS console. DCS instances can be restarted in batches. Notes and Constraints The DCS instances must be in the Running or Faulty
Deleting a DCS Instance On the DCS console, you can delete one or multiple DCS instances at a time. You can also delete all instance creation tasks that have failed to run. Notes and Constraints The DCS instances exist, and must be in the Running, Faulty, or Stopped state. Deleting
Common DCS Metrics This section describes common Redis metrics. Table 1 Common metrics Metric Description Maximum CPU Usage This metric indicates the maximum value in each measurement period (minute-level: every minute; second-level: every 5 seconds). For a single-node or master/standby
Monitored DCS Events Introduction Event monitoring provides event collection, query, and alarm reporting. These major events or DCS operation events can be collected to Cloud Eye to alarm. Namespace SYS.DCS Monitored events Table 1 DCS events Event Name Event ID Event Severity Description
Querying ECS Specifications Function Query ECS specifications. URI GET /v1/{project_id}/audit/specification Table 1 Path Parameters Parameter Mandatory Type Description project_id Yes String Definition Project ID. You can obtain the value by calling the IAM API for [querying the project
Managing an ECS on a DeH Scenarios You can start, stop, restart, or delete an ECS on a DeH on the management console. Procedure Log in to the DeH console. Click the name of the target DeH. The DeH details page is displayed. On the ECSs on the DeH tab, locate the target ECS and select
Restoring ECS Data ECS DR and Backup Solution Partitioning Disks and Rolling Back Data on a Windows ECS
Selecting ECS Specifications Scenarios Huawei Cloud provides various ECS specifications to meet different service needs. Different types of ECSs provide different computing and storage capabilities. For the same ECS type, you can select different ECS specifications based on the number
Purchasing and Logging In to an ECS Purchase an ECS on Huawei Cloud with specified specifications and OS. Log in to the ECS console and open the Buy ECS page. Configure ECS parameters. For details, see Purchasing an ECS in Custom Config Mode. Figure 1 Setting ECS specifications Figure
ECS Security Groups Background You can configure a security group for an ECS to improve security. Security groups make it easier to adjust access control rules of your ECSs. This section describes the concept of security groups and how to set security group rules. Overview and Recommendations
Common ECS Ports When adding a security group rule, you must specify a port or port range for communications. Traffic is then allowed or denied if traffic matches this rule. Suppose a client requests to remotely log in to an ECS using SSH. When the request reaches the security group
ECS Risk Status Function This API is used to query the ECS risk status. Calling Method For details, see Calling APIs. URI GET /v5/{project_id}/host-management/hosts-risk Table 1 Path Parameters Parameter Mandatory Type Description project_id Yes String Definition Project ID, which
Creating a DCS Instance Function This API is used to create a DCS instance which is billed in pay-per-use mode or yearly/monthly mode. Calling Method For details, see Calling APIs. Authorization Information Each account has all the permissions required to call all APIs, but IAM users
Querying a DCS instance Function This API is used to query the details about a specified DCS instance. Calling Method For details, see Calling APIs. Authorization Information Each account has all the permissions required to call all APIs, but IAM users must be assigned the required
Restoring a DCS Instance Function This API is used to restore the backup data to a specific DCS instance. Only master/standby and cluster DCS instances can be backed up and restored, while single-node instances cannot. Calling Method For details, see Calling APIs. Authorization Information
Creating a DCS Instance Function This API is used to create a DCS instance billed in pay-per-use mode. URI POST /v1.0/{project_id}/instances Table 1 describes the parameter. Table 1 Parameter description Parameter Type Mandatory Description project_id String Yes Project ID. For details
Querying a DCS Instance Function This API is used to query the details about a specified DCS instance. URI GET /v1.0/{project_id}/instances/{instance_id} Table 1 describes the parameters. Table 1 Parameter description Parameter Type Mandatory Description project_id String Yes For
Restoring a DCS Instance Function This API is used to restore a specified DCS instance. Only master/standby and cluster DCS instances can be backed up and restored, while single-node instances cannot. URI POST /v1.0/{project_id}/instances/{instance_id}/restores Table 1 describes the
DCS Instance Statuses Table 1 DCS instance statuses State Description CREATING Creating is the status before the Running state. CREATEFAILED The DCS instance failed to be created. RUNNING The instance is running properly. Only instances in the Running state can provide in-memory cache
