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Wang , Deng Ke
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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>
14 lines
1.5 KiB
HTML
14 lines
1.5 KiB
HTML
<a name="rds_faq_0016"></a><a name="rds_faq_0016"></a>
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<h1 class="topictitle1">Are My RDS DB Instances Available When Scaling?</h1>
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<div id="body8662426"><p id="rds_faq_0016__a99aca99482de4483948d4e1d2aa3187e">Currently, you can scale up storage space and change the CPU or memory of a DB instance.</p>
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<ul id="rds_faq_0016__ud4406984e7f7449094581aa0f6312213"><li id="rds_faq_0016__l39c2d5cdacb24fd19ba7609138b315e0">When storage space is being scaled up, RDS DB instances are still available and services are not affected. However, you cannot delete or reboot DB instances that are being scaled.</li><li id="rds_faq_0016__laaa58bf5ac1b496593d63116e41af92f">When the CPU or memory of DB instances is being changed, the network is intermittently disconnected once or twice within a few seconds. For primary/standby DB instances, a failover may occur and services may be briefly interrupted. Changing the CPU or memory takes 5 to 15 minutes.<p id="rds_faq_0016__p141342045711"><a name="rds_faq_0016__laaa58bf5ac1b496593d63116e41af92f"></a><a name="laaa58bf5ac1b496593d63116e41af92f"></a>After you change the CPU or memory, the DB instances will reboot and services will be interrupted. Therefore, select off-peak hours to perform this operation. Rebooting a DB instance will clear the cached memory in it. You are advised to reboot it during off-peak hours.</p>
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</li></ul>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rds_faq_0150.html">Capacity Expansion and Specification Change</a></div>
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</div>
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</div>
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