youjiageng1/doc-exports
1
0
Fork 0
forked from laiweijian4/doc-exports
Code Pull Requests Activity
doc-exports/docs/dds/umn/dds_02_0012.html
Wang , Deng Ke ba65944bfd Added version 4.2. 
Reviewed-by: Boka, Ladislav <ladislav.boka@t-systems.com>
Co-authored-by: Wang , Deng Ke <wangdengke2@huawei.com>
Co-committed-by: Wang , Deng Ke <wangdengke2@huawei.com>
2023-07-11 13:21:20 +00:00

202 lines
24 KiB
HTML
Raw Blame History

<a name="dds_02_0012"></a><a name="dds_02_0012"></a>
<h1 class="topictitle1">Creating a Replica Set Instance</h1>
<div id="body1513846716819"><div class="section" id="dds_02_0012__section2487181111813"><h4 class="sectiontitle">Scenarios</h4><p id="dds_02_0012__p168872184212">This section describes how to create a replica set instance on the DDS management console. DDS allows you to tailor your compute resources and storage space to your business needs.</p>
<p id="dds_02_0012__p13144143442217">You can use your account to create up to 50 replica set instances. To create more replica set instances, click <span><img id="dds_02_0012__image211171374115748" src="en-us_image_0000001096293848.png"></span> in the upper right corner of the management console. On the <strong id="dds_02_0012__b842352706174528">Service Quota</strong> page, click <strong id="dds_02_0012__b842352706174546">Increase Quota</strong> to apply for quotas.</p>
</div>
<div class="section" id="dds_02_0012__s9b4c275aa7904e16a97104c0e01ccdfc"><h4 class="sectiontitle"><strong id="dds_02_0012__b84235270611544">Procedure</strong></h4><ol id="dds_02_0012__o42897c1a8efe40d0948f999f598a3428"><li id="dds_02_0012__li76151935101418"><span><a href="dds_02_0043.html">Log in to the DDS console.</a></span></li><li id="dds_02_0012__lb1f2acdb06aa4be9a9317e5f6a394cec"><span>On the <strong id="dds_02_0012__b17876248172314">Instance Management</strong> page, click <span class="uicontrol" id="dds_02_0012__uicontrol10337181024719"><b><span id="dds_02_0012__text519511221663">Create DB Instance</span><span id="dds_02_0012__text108616282617"></span></b></span>.</span></li><li id="dds_02_0012__l705bbe04d0164b0986114b9b60d9946a"><span>On the displayed page, select your DB instance specifications and click <span class="uicontrol" id="dds_02_0012__uicontrol9114113134711"><b><span id="dds_02_0012__text159431155463">Create Now</span><span id="dds_02_0012__text4384715719"></span></b></span>.</span><p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="dds_02_0012__table44742889144238" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Basic information</caption><thead align="left"><tr id="dds_02_0012__row59029599144238"><th align="left" class="cellrowborder" valign="top" width="26%" id="mcps1.3.2.2.3.2.1.2.3.1.1"><p id="dds_02_0012__p56471429144242">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="74%" id="mcps1.3.2.2.3.2.1.2.3.1.2"><p id="dds_02_0012__p10783049144242">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="dds_02_0012__row155118279120"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0012__p140103421218">Region</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><p id="dds_02_0012__p13053412128">A region where the tenant is located. It can be changed in the upper left corner. For details, see section <a href="dds_01_0027.html">Regions and AZs</a>.</p>
<div class="note" id="dds_02_0012__note180234201217"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="dds_02_0012__p9033416124">DB instances deployed in different regions cannot communicate with each other through a private network, and you cannot change the region of a DB instance once it is created. Exercise caution when selecting a region.</p>
</div></div>
</td>
</tr>
<tr id="dds_02_0012__row16393318102629"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0012__p52790420102629">DB Instance Name</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><p id="dds_02_0012__p1437847164010">The DB instance name can be 4 to 64 characters long. It must start with a letter and can contain only uppercase letters, lowercase letters, digits, hyphens (-), and underscores (_).</p>
<p id="dds_02_0012__p167504101407">After the DB instance is created, you can change the DB instance name. For details, see section <a href="dds_03_0075.html">Changing a DB Instance Name</a>.</p>
<p id="dds_02_0012__p94691413124020"></p>
<p id="dds_02_0012__p48165638102629"></p>
</td>
</tr>
<tr id="dds_02_0012__row1299919472715"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0012__p1858165811711">Database Type</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><p id="dds_02_0012__p35812581376">Community Edition</p>
</td>
</tr>
<tr id="dds_02_0012__row770112444713"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0012__p55829581273">DB Instance Type</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><p id="dds_02_0012__p25822058578">Select <strong id="dds_02_0012__b842352706144558">Replica set</strong>.</p>
<p id="dds_02_0012__p195829587717">A replica set consists of the primary node, secondary node, and hidden node. If a primary node goes down or becomes faulty, a secondary node is automatically assigned to the primary role and continues normal operation. If a secondary node is unavailable, a hidden node will take the role of the secondary to ensure high availability.</p>
</td>
</tr>
<tr id="dds_02_0012__row1024495916243"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0012__p2453532616243">Compatible MongoDB Version</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0012__ul5930101454918"><li id="dds_02_0012__li19412134617810">4.2</li><li id="dds_02_0012__li12282171919">4.0</li><li id="dds_02_0012__li557634017166">3.4</li><li id="dds_02_0012__li0930171454919">3.2</li></ul>
</td>
</tr>
<tr id="dds_02_0012__row17502122118245"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0012__p101132286218">Storage Type</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><p id="dds_02_0012__p1511312817214">Ultra-high I/O</p>
</td>
</tr>
<tr id="dds_02_0012__row319181316237"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0012__p1672886816349">Storage Engine</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><p id="dds_02_0012__p1286106916349">WiredTiger</p>
</td>
</tr>
<tr id="dds_02_0012__row1718594414286"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0012__p689112494285">AZ</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><p id="dds_02_0012__p38941449182817">An AZ is a part of a region with its own independent power supplies and networks. AZs are physically isolated but can communicate through an internal network connection. For details, see section <a href="dds_01_0027.html">Regions and AZs</a>.</p>
<ul id="dds_02_0012__ul74702221237"><li id="dds_02_0012__li97649101842">Instances can be deployed in one or three AZ(s). Selecting multiple AZs distributes the nodes between them.</li></ul>
</td>
</tr>
<tr id="dds_02_0012__row41307396112018"><td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.2.2.3.2.1.2.3.1.1 "><p id="dds_02_0012__p57564751112018">Disk Encryption</p>
</td>
<td class="cellrowborder" valign="top" width="74%" headers="mcps1.3.2.2.3.2.1.2.3.1.2 "><ul id="dds_02_0012__ul133881550588"><li id="dds_02_0012__li2388145105810"><strong id="dds_02_0012__b842352706102944">Disabled</strong>: Disable the encryption function.</li><li id="dds_02_0012__li47064331556"><strong id="dds_02_0012__b84235270610302">Enabled</strong>: Enable the encryption function. This feature improves data security but slightly affects read/write performance.<p id="dds_02_0012__p1950185719127"><strong id="dds_02_0012__b842352706103156">Key Name</strong>: Select or create a private key, which is the tenant key.</p>
<div class="note" id="dds_02_0012__note2431518191315"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="dds_02_0012__en-us_topic_0044018333_ul1362121393110"><li id="dds_02_0012__en-us_topic_0044018333_li262221314310">After a DB instance is created, the disk encryption status and the key cannot be changed. The backup data stored in <span id="dds_02_0012__en-us_topic_0044018333_text13846195816121"></span><span id="dds_02_0012__en-us_topic_0044018333_text89517421315">OBS</span> is not encrypted.</li><li id="dds_02_0012__en-us_topic_0044018333_li158613010413">The key cannot be disabled or deleted when being used. Otherwise, the database becomes unavailable.</li><li id="dds_02_0012__en-us_topic_0044018333_li1660761315330">For details about how to create a key, see the "Creating a CMK" section in the <em id="dds_02_0012__en-us_topic_0044018333_i84235269720595">Key Management Service User Guide</em>.</li></ul>
</div></div>
</li></ul>
</td>
</tr>
</tbody>
</table>
</div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="dds_02_0012__table37562116173420" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Specifications</caption><thead align="left"><tr id="dds_02_0012__row14398999173420"><th align="left" class="cellrowborder" valign="top" width="28.000000000000004%" id="mcps1.3.2.2.3.2.2.2.3.1.1"><p id="dds_02_0012__p7826959173420"><strong id="dds_02_0012__b84235270616571">Parameter</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="72%" id="mcps1.3.2.2.3.2.2.2.3.1.2"><p id="dds_02_0012__p30003927173420"><strong id="dds_02_0012__b84235270611143">Description</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="dds_02_0012__row26958383161127"><td class="cellrowborder" valign="top" width="28.000000000000004%" headers="mcps1.3.2.2.3.2.2.2.3.1.1 "><p id="dds_02_0012__p17841537161129">Node Class</p>
</td>
<td class="cellrowborder" valign="top" width="72%" headers="mcps1.3.2.2.3.2.2.2.3.1.2 "><p id="dds_02_0012__p8316353151114">For details about the DB instance specifications, see section <a href="dds_01_0024.html">DB Instance Specifications</a>. After a DB instance is created, you can change its CPU and memory. For details, see section <a href="en-us_topic_0104721795.html">Changing a Replica Set DB Instance Class</a>.</p>
</td>
</tr>
<tr id="dds_02_0012__row39980177161751"><td class="cellrowborder" valign="top" width="28.000000000000004%" headers="mcps1.3.2.2.3.2.2.2.3.1.1 "><p id="dds_02_0012__p48504283161751">Storage Space</p>
</td>
<td class="cellrowborder" valign="top" width="72%" headers="mcps1.3.2.2.3.2.2.2.3.1.2 "><p id="dds_02_0012__p36532839161751">The value ranges from 10 GB to 3000 GB and must be a multiple of 10.</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="dds_02_0012__table2444757717146" frame="border" border="1" rules="all"><caption><b>Table 3 </b>Network</caption><thead align="left"><tr id="dds_02_0012__row3494637717146"><th align="left" class="cellrowborder" valign="top" width="23%" id="mcps1.3.2.2.3.2.3.2.3.1.1"><p id="dds_02_0012__p4164999317146"><strong id="dds_02_0012__b842352706101251">Parameter</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="77%" id="mcps1.3.2.2.3.2.3.2.3.1.2"><p id="dds_02_0012__p1820627417146"><strong id="dds_02_0012__b940253752">Description</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="dds_02_0012__row626686617146"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.3.2.3.2.3.1.1 "><p id="dds_02_0012__p2466100817216">VPC</p>
</td>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.3.2.3.2.3.1.2 "><p id="dds_02_0012__p144151228195610">The VPC where your <span class="keyword" id="dds_02_0012__keyword97271432185013">DB instances</span> are located. A VPC isolates networks for different services, so you can easily manage and configure internal networks and change network configuration. For details about how to create a VPC, see section "Creating a VPC" in the <em id="dds_02_0012__i842352697152613">Virtual Private Cloud User Guide</em>. For details about the constraints on the use of VPCs, see <a href="dds_02_0042.html">Connection Methods</a>.</p>
<div class="note" id="dds_02_0012__note153371245113813"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="dds_02_0012__p18337345193813">After the DDS instance is created, the VPC cannot be changed.</p>
</div></div>
</td>
</tr>
<tr id="dds_02_0012__row1390275717146"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.3.2.3.2.3.1.1 "><p id="dds_02_0012__p1264740517216">Subnet</p>
</td>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.3.2.3.2.3.1.2 "><p id="dds_02_0012__p1780686617216">A subnet provides dedicated network resources that are logically isolated from other networks for network security.</p>
<p id="dds_02_0012__p031334313231">After the instance is created, you can change the private IP address assigned by the subnet. For details, see <a href="dds_03_0070.html">Changing a Private IP Address</a>.</p>
</td>
</tr>
<tr id="dds_02_0012__row117043217146"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.3.2.3.2.3.1.1 "><p id="dds_02_0012__p2919505317216">Security Group</p>
</td>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.3.2.3.2.3.1.2 "><p id="dds_02_0012__p1598907017216">A security group controls access between DDS and other services for security.</p>
<div class="note" id="dds_02_0012__note968390917216"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="dds_02_0012__p2004632517216">Ensure that the security group rule you set allows clients to access DB instances. For example, select the TCP protocol with inbound direction, input the default port number <strong id="dds_02_0012__b72325208594834">8635</strong>, and enter a subnet IP address or select a security group that the DB instance belongs to.</p>
</div></div>
</td>
</tr>
<tr id="dds_02_0012__row1914874614915"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.3.2.3.2.3.1.1 "><p id="dds_02_0012__p1698018495912">SSL</p>
</td>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.3.2.3.2.3.1.2 "><p id="dds_02_0012__p2098014493920">Secure Sockets Layer (SSL) certificates set up encrypted connections between clients and servers, preventing data from being tampered with or stolen during transmission.</p>
<p id="dds_02_0012__p898054917919">You can enable SSL to improve data security. After a DB instance is created, you can connect to it using SSL.</p>
</td>
</tr>
<tr id="dds_02_0012__row6539858144014"><td class="cellrowborder" valign="top" width="23%" headers="mcps1.3.2.2.3.2.3.2.3.1.1 "><p id="dds_02_0012__p195400585407">Cross-CIDR Access</p>
</td>
<td class="cellrowborder" valign="top" width="77%" headers="mcps1.3.2.2.3.2.3.2.3.1.2 "><ul id="dds_02_0012__ul187219179460"><li id="dds_02_0012__li137315178462">Configure<p id="dds_02_0012__p132774190471"><a name="dds_02_0012__li137315178462"></a><a name="li137315178462"></a>Add the VPC CIDR block of your client. Ensure that the ECS where your client is installed can connect to the DB instance.</p>
<div class="note" id="dds_02_0012__note0609151955412"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="dds_02_0012__ul956311546545"><li id="dds_02_0012__li4524145764314">To ensure the ECS and the DB instance can communicate with each other, configure a VPC peering connection by referring to section "VPC Peering Connection Overview" in the <em id="dds_02_0012__i650955941316">Virtual Private Cloud User Guide</em>.</li><li id="dds_02_0012__li1494192135812">Up to 30 CIDR blocks can be configured, and each of them can overlap but they cannot be the same. That is, the source CIDR blocks can overlap but cannot be the same.</li></ul>
</div></div>
</li><li id="dds_02_0012__li29192219462">Skip<p id="dds_02_0012__p11211645101712"><a name="dds_02_0012__li29192219462"></a><a name="li29192219462"></a>Configure the subnet of the client later. After a DB instance is created, you can configure cross-CIDR access by referring to <a href="dds_03_0100.html">Configuring Cross-CIDR Access for Replica Set Instances</a>.</p>
</li></ul>
</td>
</tr>
</tbody>
</table>
</div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="dds_02_0012__table5952588817311" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Database configuration</caption><thead align="left"><tr id="dds_02_0012__row5051800017311"><th align="left" class="cellrowborder" valign="top" width="18.05%" id="mcps1.3.2.2.3.2.4.2.3.1.1"><p id="dds_02_0012__p188968917322"><strong id="dds_02_0012__b842352706104624">Parameter</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="81.95%" id="mcps1.3.2.2.3.2.4.2.3.1.2"><p id="dds_02_0012__p1884710117322"><strong id="dds_02_0012__b755083843">Description</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="dds_02_0012__row3306650017311"><td class="cellrowborder" valign="top" width="18.05%" headers="mcps1.3.2.2.3.2.4.2.3.1.1 "><p id="dds_02_0012__p3543244917347">Administrator</p>
</td>
<td class="cellrowborder" valign="top" width="81.95%" headers="mcps1.3.2.2.3.2.4.2.3.1.2 "><p id="dds_02_0012__p53475534163330">The default account is <strong id="dds_02_0012__b842352706104956">rwuser</strong>.</p>
</td>
</tr>
<tr id="dds_02_0012__row1140943517311"><td class="cellrowborder" valign="top" width="18.05%" headers="mcps1.3.2.2.3.2.4.2.3.1.1 "><p id="dds_02_0012__p6477672517347">Administrator Password</p>
</td>
<td class="cellrowborder" valign="top" width="81.95%" headers="mcps1.3.2.2.3.2.4.2.3.1.2 "><p id="dds_02_0012__p18935194115015">Set a password for the administrator. The password must be 8 to 32 characters in length and contain uppercase letters, lowercase letters, digits, and any of the following special characters: ~!@#%^*-_=+?</p>
<p id="dds_02_0012__p6009326415510">Keep this password secure. If lost, the system cannot retrieve it for you.</p>
</td>
</tr>
<tr id="dds_02_0012__row985834117311"><td class="cellrowborder" valign="top" width="18.05%" headers="mcps1.3.2.2.3.2.4.2.3.1.1 "><p id="dds_02_0012__p2259237217347">Confirm Password</p>
</td>
<td class="cellrowborder" valign="top" width="81.95%" headers="mcps1.3.2.2.3.2.4.2.3.1.2 "><p id="dds_02_0012__p1804285317347">Enter the administrator password again.</p>
</td>
</tr>
<tr id="dds_02_0012__row1420914884618"><td class="cellrowborder" valign="top" width="18.05%" headers="mcps1.3.2.2.3.2.4.2.3.1.1 "><p id="dds_02_0012__p824433220487">Replica Set Parameter Template</p>
</td>
<td class="cellrowborder" valign="top" width="81.95%" headers="mcps1.3.2.2.3.2.4.2.3.1.2 "><p id="dds_02_0012__p224416324488">The parameters that apply to the replica set instances. After a DB instance is created, you can change the parameter template you configured for the DB instance to bring out the best performance.</p>
<p id="dds_02_0012__p42451732184819">For details, see <a href="en-us_topic_configuration.html">Modifying a Parameter Template</a>.</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="dds_02_0012__table3731123516113" frame="border" border="1" rules="all"><caption><b>Table 5 </b>Tag</caption><thead align="left"><tr id="dds_02_0012__en-us_topic_0044018333_row87709361053"><th align="left" class="cellrowborder" valign="top" width="20.9%" id="mcps1.3.2.2.3.2.5.2.3.1.1"><p id="dds_02_0012__en-us_topic_0044018333_p1770836856"><strong id="dds_02_0012__en-us_topic_0044018333_b842352706203916">Parameter</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="79.10000000000001%" id="mcps1.3.2.2.3.2.5.2.3.1.2"><p id="dds_02_0012__en-us_topic_0044018333_p4770136655"><strong id="dds_02_0012__en-us_topic_0044018333_b120253356">Description</strong></p>
</th>
</tr>
</thead>
<tbody><tr id="dds_02_0012__en-us_topic_0044018333_row18770336259"><td class="cellrowborder" valign="top" width="20.9%" headers="mcps1.3.2.2.3.2.5.2.3.1.1 "><p id="dds_02_0012__en-us_topic_0044018333_p1221015159617">Tags</p>
</td>
<td class="cellrowborder" valign="top" width="79.10000000000001%" headers="mcps1.3.2.2.3.2.5.2.3.1.2 "><p id="dds_02_0012__en-us_topic_0044018333_p42130153614">This setting is optional. Adding tags helps you better identify and manage your DB instances. Up to <span id="dds_02_0012__en-us_topic_0044018333_text5986559112017"></span><span id="dds_02_0012__en-us_topic_0044018333_text137926322111">20</span> tags can be added for a DB instance.</p>
<p id="dds_02_0012__en-us_topic_0044018333_p791635119297">A tag is composed of a key-value pair.</p>
<ul id="dds_02_0012__en-us_topic_0044018333_ul73781026122214"><li id="dds_02_0012__en-us_topic_0044018333_li103790268221">Key: Mandatory if the DB instance is going to be tagged<ul id="dds_02_0012__en-us_topic_0044018333_ul638611265223"><li id="dds_02_0012__en-us_topic_0044018333_li103891226202213">Each tag key must be unique for each DB instance.</li><li id="dds_02_0012__en-us_topic_0044018333_li2039372622213">A tag key consists of up to 36 characters.</li><li id="dds_02_0012__en-us_topic_0044018333_li15395326112215">The key can only consist of digits, letters, underscores (_), hyphens (-), and at sign (@).</li></ul>
</li><li id="dds_02_0012__en-us_topic_0044018333_li1240572613229">Value: Optional if the DB instance is going to be tagged<ul id="dds_02_0012__en-us_topic_0044018333_ul1641092614228"><li id="dds_02_0012__en-us_topic_0044018333_li44111026102220">The value consists of up to 43 characters.</li><li id="dds_02_0012__en-us_topic_0044018333_li15928102619121">The key can only consist of digits, letters, underscores (_), hyphens (-), and at sign (@).</li></ul>
</li></ul>
<p id="dds_02_0012__en-us_topic_0044018333_p621481510618">After a DB instance is created, you can view its tag details on the <strong id="dds_02_0012__en-us_topic_0044018333_b1468912272147">Tags</strong> tab. In addition, you can add, modify, and delete tags for existing DB instances. For details, see <a href="dds_03_0023.html">Tag Management</a>.</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="note" id="dds_02_0012__note22632562173420"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="dds_02_0012__p2514729173420">DB instance performance is determined by how you configure it during the creation. The hardware configuration items that can be selected include the class and storage space of the replica set.</p>
</div></div>
</p></li><li id="dds_02_0012__li315515819169"><span>On the displayed page, confirm the DB instance information.</span><p><ul id="dds_02_0012__ul746550121514"><li id="dds_02_0012__li13469504156">If you need to modify the specifications, click <strong id="dds_02_0012__b9270829112818">Previous</strong> to return to the previous page.</li><li id="dds_02_0012__li1046195031510">If you do not need to modify the specifications, click <strong id="dds_02_0012__b4133142145819">Submit</strong> to start the instance creation.</li></ul>
</p></li><li id="dds_02_0012__l93e7ec4b3c5e485cba42d6985850d735"><span>After a DDS DB instance is created, you can view and manage it on the <span class="uicontrol" id="dds_02_0012__uicontrol131221165599"><b>Instance Management</b></span> page.</span><p><ul id="dds_02_0012__ul144520408374"><li id="dds_02_0012__li944464019378">When a DB instance is being created, the status displayed in the <strong id="dds_02_0012__b842352706211812">Status</strong> column is <strong id="dds_02_0012__b842352706211847">Creating</strong>. This process takes about 15 minutes. After the creation is complete, the status changes to <strong id="dds_02_0012__b1971439269">Available</strong>.</li><li id="dds_02_0012__li12445144018373">DDS enables the automated backup policy by default. After a DB instance is created, you can modify or disable the automated backup policy. An automated full backup is immediately triggered after the creation of a DB instance.</li><li id="dds_02_0012__li104452040133719">The default DDS port is 8635, but this port can be modified if necessary. If you change the port, you need to add the security group rule to enable access.</li></ul>
</p></li></ol>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="dds_02_0055.html">Connecting to a Replica Set Instance Over Private Networks</a></div>
</div>
</div>
View Git Blame Copy Permalink