Viewing and Modifying Basic Information About a DCS Instance

Procedure

1. Log in to the DCS console.
2. Click in the upper left corner of the management console and select the region where your instance is located.
3. In the navigation pane, choose Cache Manager.
4. On the Cache Manager page, query a DCS instance.
   • Search for DCS instances by keyword.

     Enter a keyword in the search box.

   • Search for DCS instances by specifying attributes.

     Currently, you can search for DCS instances by name, specifications, ID, IP address, AZ, status, instance type, and cache engine. For example, you can click inside the search box, select the Cache Engine filter as Redis 6.0 and then the Type filter as Master/Standby to filter out master/standby Redis 6.0 instances.

     If you frequently use a set of filter criteria, click on the right of the search box to save them as a custom filter set. Next time you need to filter instances by the same criteria, simply select the saved filter set, as shown in Figure 1.

     Figure 1 Saving filters as a custom filter set

     

5. Click the name of the target DCS instance to access its details page. Table 1 describes the parameters of the instance.

   Table 1 Parameters

   Type	Parameter	Description
   Instance Details	Name	Name of the DCS instance. You can click to change the instance name.
   	Status	Status of the DCS instance. The status can be Running, Creating, Faulty, Resizing, Starting, or Stopped.
   	ID	ID of the DCS instance.
   	Cache Engine	Cache engine of the DCS instance, for example, | Basic edition | Redis 4.0. The cache engine cannot be changed after the instance is created. If you need to use another cache engine, create a new instance and migrate data to it.
   	Minor Version	Minor version of the DCS instance. DCS periodically releases minor versions to optimize product functions and fix known issues. You can click Upgrade to upgrade your instance to the latest version. For details, see Upgrading Minor or Proxy Versions of a DCS Instance.
   	Proxy Version	Proxy version of the DCS instance. This parameter is displayed only for Proxy Cluster and read/write splitting instances. DCS periodically releases proxy versions to optimize product functions and fix known issues. You can click Upgrade to upgrade your instance to the latest version. For details, see Upgrading Minor or Proxy Versions of a DCS Instance.
   	Instance Type	Type of the DCS instance. Currently, single-node, master/standby, Proxy Cluster, read/write splitting, and Redis Cluster instances are supported. You can change the instance type by following the instructions provided in Changing DCS Instance Specifications.
   	Cache Size	Specifications of the DCS instance. The memory size and number of replicas of the instance are displayed. For a Redis Cluster instance, its shards and shard size are also displayed. You can change the instance specifications by following the instructions provided in Changing DCS Instance Specifications.
   	Bandwidth	Bandwidth of the DCS instance. You can click Adjust Bandwidth to adjust the instance bandwidth. For details, see Adjusting the Bandwidth of a DCS Instance.
   	Used/Available Memory (MB)	Used memory of the DCS instance and the maximum memory that can be used. The used memory consists of two parts: Your data stored on the instance Redis-server buffers (including client buffer and repl-backlog) and internal data structures
   	CPU	CPU architecture of the DCS instance. This parameter is displayed only for Redis instances. The CPU architecture cannot be changed after the instance is created.
   	Enterprise Project	Enterprise project to which the instance belongs. You can click the icon next to the project to change the enterprise project for the instance. Enterprise projects can achieve isolation across resources, personnel, and finance. Changing the enterprise project will shift the isolation boundaries for them.
   	Maintenance	Time range for any scheduled maintenance activities on the DCS instance. You can click the icon next to the value to change the time window. Select a new maintenance window from the drop-down list, and click to save the change or to cancel the change. The change takes effect immediately.
   	Description	Description of the DCS instance. You can click the icon next to the value to modify the description.
   Connection	Password Protected	Whether a password is configured for the access. The access can be password-protected (Yes) or password-free (No). To change the password-protected access mode, see Configuring a Redis Password.
   	Connection Address	Domain name and port used by clients in the same VPC to connect to the DCS Redis instance. You can click the icon next to the connection address to change the port. The connection address cannot be changed after the instance is created. For a master/standby instance of DCS Redis 4.0 or later, Connection Address indicates the domain name and port number of the master node, and Read-only Address indicates the domain name and port number of the replica node. When connecting to the instance from a client, you can use the domain name and port number of either the master or replica node. For details about the master/standby instance architecture, see Master/Standby Redis. You can change the port only for DCS Redis 4.0 Basic Edition instances and later, but not for DCS Redis 3.0, DCS Redis 6.0 Enterprise Edition, and DCS Memcached instances. NOTE: If the current domain name does not follow the latest rules, Rebuild Domain Name will be displayed. To apply the latest rules, click Rebuild Domain Name to open a dialog box showing the newly-generated domain name, and click OK. After the new domain name is generated, the old domain name will no longer be maintained and may cause exceptions if you continue to use it. Switch to the new domain name as soon as possible and release the old one.
   	IP Address	IP address and port used by clients in the same VPC to connect to the DCS instance. You can click the icon next to the IP address to change the port of the instance. The IP address cannot be changed after the instance is created. You are advised to use the domain name to connect to the instance.
   	Public Access	Currently, public access can be enabled by default only for DCS Redis 3.0 instances. To enable public access to a DCS Redis 3.0 instance, see Public Access to a DCS Redis 3.0 Instance (Discontinued). DCS Redis 4.0 instances and later do not support direct EIP binding. To enable public access to these instances, you can configure an elastic load balancer (ELB). For details about how to enable public access and obtain the public access address, see Enabling Public Access to Redis and Obtaining the Access Addresses. DCS Memcached instances (discontinued) do not support public access.
   Network	AZ	AZ to which the DCS instance node belongs. For a single-AZ, multi-replica Cluster instance, you can change the AZ of the replica node. For details, see Changing Cluster DCS Instances to be Across AZs. In other scenarios, the AZ cannot be changed.
   	VPC	VPC in which the DCS instance resides. The VPC cannot be changed after the instance is created.
   	Subnet	Subnet to which the DCS instance belongs. To change the subnet, click next to the subnet. For details, see Switching a DCS Instance's Subnet. NOTE: This function is available with restrictions. To use it, submit a service ticket and contact the customer service.
   	Security Group	Security group associated with the DCS instance. You can click to change the security group. Select a new security group from the drop-down list and click to save the change or click to cancel the change. The change takes effect immediately. To reconfigure a security group, see How Do I Configure a Security Group. Security group-based access control is supported only by DCS Redis 3.0, DCS Redis 6.0 Enterprise Edition, and DCS Memcached instances. For DCS Redis 4.0 Basic Edition instances and later, access is controlled through VPC endpoints. Security groups are currently not supported. You are advised to configure an access whitelist.
   Instance Topology	-	Topology of the instance. You can hover your mouse pointer over a node to view its monitoring information, or click the icon of a node to view its historical monitoring information. The topology of a single-node instance is not displayed.
   Billing	Billing Mode	Billing mode of the DCS instance. To change the billing mode, see Billing Mode Changes.
   	Created	Time at which the DCS instance creation started.
   	Run	Time at which the DCS instance creation was completed.