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rds_umn_20241122

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Reviewed-by: Székely, Ond <ond.szekely@t-systems.com>
Co-authored-by: Ru, Li Yi <liyiru7@huawei.com>
Co-committed-by: Ru, Li Yi <liyiru7@huawei.com>
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Ru, Li Yi 2024-11-22 12:24:15 +00:00 committed by zuul
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<p id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_p9880122010121">Autoscaling up the storage space of a read replica does not affect that of the primary DB instance. Therefore, you can separately autoscale read replicas to meet service requirements. New storage space of read replicas after autoscaling up must be greater than or equal to that of the primary DB instance.</p>
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<div class="section" id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_section6787733202313"><h4 class="sectiontitle">Constraints</h4><ul id="EN-US_TOPIC_0000001990102985__ul19502136125713"><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001526277470_li7486533103711">The maximum allowed storage is 4,000 GB.</li></ul>
<ul id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_ul979225822314"><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_li1332761153919">For primary/standby DB instances, autoscaling the storage for the primary DB instance will also autoscale the storage for the standby DB instance.</li><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_li17123197163913">Storage autoscaling is unavailable when the DB instance is changing instance class or rebooting.</li><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_li521710118014">Storage of RDS for SQL Server instances cannot be scaled down. Exercise caution when enabling autoscaling.</li><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_li181131413114">There is an upper limit on autoscaling. For example, if an instance scales out for multiple times within a short period of time due to a sharp increase of temporary databases or log files, to prevent the storage from getting full, you can shrink the databases or log files to reduce the storage usage.</li></ul>
<ul id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_ul979225822314"><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_li1332761153919">For primary/standby DB instances, autoscaling the storage for the primary DB instance will also autoscale the storage for the standby DB instance.</li><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_li17123197163913">Storage autoscaling is unavailable when the DB instance is changing instance class or rebooting.</li><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_li521710118014">Storage of RDS for SQL Server instances cannot be scaled down. Exercise caution when enabling autoscaling.</li><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001744232593_li181131413114">There is an upper limit on storage autoscaling. A maximum of two scale-ups are allowed within one hour and a maximum of five scale-ups within one day. If an instance scales up multiple times within a short period of time due to a sharp increase of temporary databases or log files, to reduce the storage usage, you can shrink the databases or log files.</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_section9378165872719"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_ol15380195882711"><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_li17251143135117"><span>Log in to the management console.</span></li><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_li42514315519"><span>Click <span><img id="EN-US_TOPIC_0000001990102985__en-us_topic_0192953813_en-us_topic_0192953815_image192529212293" src="en-us_image_0000001633304538.png"></span> in the upper left corner and select a region.</span></li><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_li52544395118"><span>Click <strong id="EN-US_TOPIC_0000001990102985__en-us_topic_0192953813_b1086616497517">Service List</strong>. Under <strong id="EN-US_TOPIC_0000001990102985__en-us_topic_0192953813_b15867164916512">Database</strong>, click <strong id="EN-US_TOPIC_0000001990102985__en-us_topic_0192953813_b12867114915516">Relational Database Service</strong>.</span></li><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_li683691813294"><span>On the <strong id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_b136407412416">Instances</strong> page, click the target DB instance or read replica (click <span><img id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_image2099112213211" src="en-us_image_0000001954623816.png"></span> in front of a DB instance to locate the read replica).</span></li><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_li57411551748"><span>In the <strong id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_b11354417771">Storage Space</strong> area, click <strong id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_b163541171877">Configure Autoscaling</strong>.</span></li><li id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_lf939df2e325d47d490c6ffdacf5f0b19"><span>In the displayed dialog box, set the following parameters.</span><p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_table1792553812574" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Parameter description</caption><thead align="left"><tr id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_row492519386579"><th align="left" class="cellrowborder" valign="top" width="36.449999999999996%" id="mcps1.3.3.2.6.2.1.2.3.1.1"><p id="EN-US_TOPIC_0000001990102985__en-us_topic_0000001757348769_en-us_topic_0000001744232593_p179245387578">Parameter</p>

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</td>
<td class="cellrowborder" valign="top" width="12.7987201279872%" headers="mcps1.3.2.2.8.1.2 "><p id="rds_09_0045__p12668121191618">-</p>
</td>
<td class="cellrowborder" valign="top" width="12.7987201279872%" headers="mcps1.3.2.2.8.1.3 "><p id="rds_09_0045__p12668214163">0.5.1</p>
<td class="cellrowborder" valign="top" width="12.7987201279872%" headers="mcps1.3.2.2.8.1.3 "><p id="rds_09_0045__p12668214163">0.7.0</p>
</td>
<td class="cellrowborder" valign="top" width="12.7987201279872%" headers="mcps1.3.2.2.8.1.4 "><p id="rds_09_0045__p96695114165">0.5.1</p>
<td class="cellrowborder" valign="top" width="12.7987201279872%" headers="mcps1.3.2.2.8.1.4 "><p id="rds_09_0045__p96695114165">0.7.0</p>
</td>
<td class="cellrowborder" valign="top" width="12.7987201279872%" headers="mcps1.3.2.2.8.1.5 "><p id="rds_09_0045__p14532635172413">0.5.1</p>
<td class="cellrowborder" valign="top" width="12.7987201279872%" headers="mcps1.3.2.2.8.1.5 "><p id="rds_09_0045__p14532635172413">0.7.0</p>
</td>
<td class="cellrowborder" valign="top" width="12.7987201279872%" headers="mcps1.3.2.2.8.1.6 "><p id="rds_09_0045__p20532103562416">0.5.1</p>
<td class="cellrowborder" valign="top" width="12.7987201279872%" headers="mcps1.3.2.2.8.1.6 "><p id="rds_09_0045__p20532103562416">0.7.0</p>
</td>
<td class="cellrowborder" valign="top" width="10.408959104089591%" headers="mcps1.3.2.2.8.1.7 "><p id="rds_09_0045__p1889162211222">0.6.1</p>
<td class="cellrowborder" valign="top" width="10.408959104089591%" headers="mcps1.3.2.2.8.1.7 "><p id="rds_09_0045__p1889162211222">0.7.0</p>
</td>
</tr>
<tr id="rds_09_0045__row113419347613"><td class="cellrowborder" valign="top" width="25.5974402559744%" headers="mcps1.3.2.2.8.1.1 "><p id="rds_09_0045__p683125320816"><strong id="rds_09_0045__b198311553283">plpgsql</strong></p>