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Jawei, Li
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Reviewed-by: gtema <artem.goncharov@gmail.com> Co-authored-by: Jawei, Li <lijiawei5@huawei.com> Co-committed-by: Jawei, Li <lijiawei5@huawei.com>
24 lines
2.9 KiB
HTML
24 lines
2.9 KiB
HTML
<a name="obs_03_0148"></a><a name="obs_03_0148"></a>
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<h1 class="topictitle1">Region and AZ</h1>
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<div id="body1565680831986"><div class="section" id="obs_03_0148__section388255972712"><h4 class="sectiontitle">Concept</h4><p id="obs_03_0148__p212716216381">A region and availability zone (AZ) identify the location of a data center. You can create resources in a specific region and AZ.</p>
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<ul id="obs_03_0148__ul86578533460"><li id="obs_03_0148__li14657175334618">A region is a physical data center. Each region is completely independent, improving fault tolerance and stability. After a resource is created, its region cannot be changed.</li><li id="obs_03_0148__li45875020473">An AZ is a physical location using independent power supplies and networks. Faults in an AZ do not affect other AZs. A region can contain multiple AZs, which are physically isolated but interconnected through internal networks. This ensures the independence of AZs and provides low-cost and low-latency network connections.</li></ul>
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<p id="obs_03_0148__p1479174514614"><a href="#obs_03_0148__fig8747114281212">Figure 1</a> shows the relationship between the regions and AZs.</p>
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<div class="fignone" id="obs_03_0148__fig8747114281212"><a name="obs_03_0148__fig8747114281212"></a><a name="fig8747114281212"></a><span class="figcap"><b>Figure 1 </b>Regions and AZs</span><br><span><img class="vsd" id="obs_03_0148__image12748194211128" src="en-us_image_0185449745.png"></span></div>
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<div class="section" id="obs_03_0148__section67281149192216"><h4 class="sectiontitle">How Do I Select a Region?</h4><p id="obs_03_0148__p68521454132212">You are advised to select a region close to you or your target users. This reduces network latency and improves access speed.</p>
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<div class="section" id="obs_03_0148__section193971112578"><h4 class="sectiontitle">How Do I Select an AZ?</h4><p id="obs_03_0148__p859161416717">When determining whether to deploy resources in the same AZ, consider your applications' requirements for disaster recovery (DR) and network latency.</p>
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<ul id="obs_03_0148__ul157203571473"><li id="obs_03_0148__li7720175710711">For high DR capability, deploy resources in different AZs in the same region.</li><li id="obs_03_0148__li109763595719">For low network latency, deploy resources in the same AZ.</li></ul>
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<div class="section" id="obs_03_0148__section1110135820407"><h4 class="sectiontitle">Regions and Endpoints</h4><p id="obs_03_0148__p361784821111">Before using an API to call resources, you must specify its region and endpoint. For details about public cloud regions and endpoints, see <a href="https://docs.otc.t-systems.com/en-us/endpoint/index.html" target="_blank" rel="noopener noreferrer">Regions and Endpoints</a>.</p>
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<p id="obs_03_0148__p1999345313137"></p>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="obs_03_0205.html">Basic Concepts</a></div>
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