<p><span style="font-size:16px"><strong>云硬盘概述</strong></span></p> <p>云硬盘EBS（Elastic Block Storage）是专为ECS实例提供的弹性块设备，用户申请ECS实例后，可根据需求扩充ECS实例的硬盘数量和空间，也可为云硬盘的数据生成快照，以随时恢复历史数据。</p> <p>&nbsp;</p> <p><span style="font-size:16px"><strong>云硬盘类型及规格</strong></span></p> <table border="1" cellpadding="0" cellspacing="0" style="width:806px"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top; width:109px"> <p><strong>磁盘类型</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:104px"> <p><strong>最大IOPS</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:109px"> <p><strong>容量范围</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:126px"> <p><strong>数据持久性</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:153px"> <p><strong>IOPS</strong><strong>计算</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:191px"> <p><strong>吞吐计算</strong></p> </td> </tr> <tr> <td style="vertical-align:top; width:109px"> <p><strong>容量型云硬盘</strong></p> </td> <td style="vertical-align:top; width:104px"> <p>200</p> </td> <td style="vertical-align:top; width:109px"> <p>20GB-2000GB</p> </td> <td style="vertical-align:top; width:126px"> <p>99.999999%</p> </td> <td style="vertical-align:top; width:153px"> <p>200 iops</p> </td> <td style="vertical-align:top; width:191px"> <p>20MB/s</p> </td> </tr> <tr> <td style="vertical-align:top; width:109px"> <p><strong>普通云硬盘</strong></p> </td> <td style="vertical-align:top; width:104px"> <p>1000</p> </td> <td style="vertical-align:top; width:109px"> <p>20GB-2000GB</p> </td> <td style="vertical-align:top; width:126px"> <p>99.999999%</p> </td> <td style="vertical-align:top; width:153px"> <p>IOPS=min{200+1*容量（GB） ，1000)</p> </td> <td style="vertical-align:top; width:191px"> <p>min{20+0.02*容量（GB）,36MB/s}</p> </td> </tr> <tr> <td style="vertical-align:top; width:109px"> <p><strong>高效云硬盘</strong></p> </td> <td style="vertical-align:top; width:104px"> <p>3000</p> </td> <td style="vertical-align:top; width:109px"> <p>20GB-2000GB</p> </td> <td style="vertical-align:top; width:126px"> <p>99.999999%</p> </td> <td style="vertical-align:top; width:153px"> <p>IOPS=min { 1000 + 2*容量（GB）, 3000}</p> </td> <td style="vertical-align:top; width:191px"> <p>min{40 + 0.04*容量（GB），80MB/s}</p> </td> </tr> <tr> <td style="vertical-align:top; width:109px"> <p><strong>超高效云硬盘</strong></p> </td> <td style="vertical-align:top; width:104px"> <p>10000</p> </td> <td style="vertical-align:top; width:109px"> <p>20GB-2000GB</p> </td> <td style="vertical-align:top; width:126px"> <p>99.999999%</p> </td> <td style="vertical-align:top; width:153px"> <p>IOPS=min {3000+7*容量（GB），10000}</p> </td> <td style="vertical-align:top; width:191px"> <p>min{80+0.08*容量（GB），160MB/s}</p> </td> </tr> <tr> <td style="vertical-align:top; width:109px"> <p><strong>SSD</strong><strong>型云硬盘</strong></p> </td> <td style="vertical-align:top; width:104px"> <p>20000</p> </td> <td style="vertical-align:top; width:109px"> <p>20GB-2000GB</p> </td> <td style="vertical-align:top; width:126px"> <p>99.999999%</p> </td> <td style="vertical-align:top; width:153px"> <p>IOPS=min{2000+30*容量(GB），20000}</p> </td> <td style="vertical-align:top; width:191px"> <p>Max=300MB/s</p> </td> </tr> </tbody> </table> <p>&nbsp;</p>