<p><strong>1.&nbsp; </strong><strong>Under what circumstances do </strong><strong>I</strong><strong> need to purchase a Dedicated Host?</strong></p> <p>The Dedicated Host of Ping An Cloud can meet the needs of some special scenarios, such as those requiring high security compliance and stable performance. For more information, see Scenarios.</p> <p>&nbsp;</p> <p><strong>2.&nbsp; </strong><strong>Can I expand the capacity of a Dedicated Host?</strong></p> <p>No. The hardware configuration of the Dedicated Host is preconfigured physical-level resources, which cannot be changed. Evaluate your business requirements before purchasing Dedicated Hosts.</p> <p>&nbsp;</p> <p><strong>3.&nbsp; </strong><strong>What is the difference between a Dedicated Host and a common host?</strong></p> <p>For a Dedicated Host, its CPU runs two threads for execution, and the use of resources is planned independently. For a common host, its CPU usage is calculated by 5 times, and the physical server is shared by multiple tenants.</p> <p><img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20191411160123-19285053945d.png" style="height:323px; width:585px" /></p> <table border="1" cellpadding="0" cellspacing="0"> <tbody> <tr> <td style="vertical-align:top"> <p>Application layer</p> </td> <td rowspan="4" style="vertical-align:top"> <p>&nbsp;</p> </td> <td rowspan="4" style="vertical-align:top"> <p>&nbsp;</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>OS layer</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Virtual layer</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Physical layer</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>&nbsp;</p> </td> <td style="vertical-align:top"> <p>Dedicated Host</p> </td> <td style="vertical-align:top"> <p>Common host</p> </td> </tr> </tbody> </table> <p>&nbsp;</p> <p>&nbsp;</p> <p><strong>4.&nbsp; </strong><strong>What is the difference between a Dedicated Host and Bare Metal Serv</strong><strong>er</strong><strong> (BMS)?</strong></p> <p>A Dedicated Host is one that is equipped with the virtualized system of Ping An Cloud. You can create Dedicated Instances on the Dedicated Host for free after purchasing the Dedicated Host. BMS is a bare metal server without the virtualized platform.&nbsp;</p> <p><img src="https://obs-cn-shanghai.yun.pingan.com/pcp-portal/20191411160131-1901a2ed90ff.png" style="height:291px; width:564px" /></p> <table border="1" cellpadding="0" cellspacing="0"> <tbody> <tr> <td style="vertical-align:top"> <p>Application layer</p> </td> <td rowspan="4" style="vertical-align:top"> <p>&nbsp;</p> </td> <td rowspan="4" style="vertical-align:top"> <p>&nbsp;</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>OS layer</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Virtual layer</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Physical layer</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>&nbsp;</p> </td> <td style="vertical-align:top"> <p>Dedicated Host</p> </td> <td style="vertical-align:top"> <p>Bare Metal Server</p> </td> </tr> </tbody> </table> <p>&nbsp;</p> <p>&nbsp;</p> <p><strong>5.&nbsp; </strong><strong>Why cann</strong><strong>o</strong><strong>t I delete </strong><strong>a</strong><strong> Dedicated Host?</strong></p> <p>Before you delete a Dedicated Host, you must first delete all the Dedicated Instances on it. For more information, see Delete a Dedicated Host.</p>