<p>This article describes the usage guidelines, limitations and procedures for creating EBS.</p> <p><strong>Usage Guidelines</strong></p> <p><strong>Billing</strong></p> <ul> <li>For an EBS disk created together with ECS instances, the billing method is the same with that of the ECS instances. For example, if the created ECS instances are purchased by month, then it is the same case with the EBS disk created together. If the created ECS instances adopt a pay-per-use method, then it is the same case with the EBS disk created together.</li> <li>The billing method for separately created EBS disks is pay-per-use.</li> </ul> <p><strong>Operation</strong></p> <ul> <li>Pay-by-month EBS disks created together with ECS instances cannot be mounted and unmounted.</li> <li>General-type and SSD-type EBS disks cannot be mounted and unmounted.</li> <li>For a single ECS instance that has been mounted with multiple EBS disks, it is not recommended to use LVM and other logic volumes. That&rsquo;s because snapshots can only be created for a single EBS disk, and when LVM is in use, using snapshots to roll back EBS may cause data difference.</li> </ul> <p><strong>Limitations</strong></p> <p>1．Each ECS instance can be mounted with a maximum of 20 T of EBS.</p> <p>2．Each ECS instance can be mounted with a maximum of five EBS disks.</p> <p>3．The largest capacity for a single EBS disk is 2000 G.</p> <p>4．Pay-by-month EBS disks cannot be created separately.</p> <p><strong>Prerequisites</strong></p> <p>1．Separately created EBS disks are charged in a pay-per-use way, and the account balance should be no less than 200RMB or coupons worth the same.</p> <p>2．You have successfully created an ECS instance. For more information, see Create an Instance.</p> <p>3．Your ECS instance is in the running status, because an EBS disk cannot be created for a shut-down ECS instance.</p> <p><strong>Procedures</strong></p> <p><strong>Method one:</strong></p> <p>1．Log in to the <a href="#https://yun.pingan.com/console/ecs/overview" target="_blank">ECS Console</a>.</p> <p>2．In the left navigation pane, click <strong>Block Storage &gt; Disk</strong> to enter the <strong>Disk Management</strong> page.</p> <p>3．Select a target region, in the upper-right corner click <strong>Create</strong>, and you will enter the <strong>Create Disk</strong> page.</p> <p><strong>Note:</strong> An EBS disk can only be mounted to ECS instances that are in the same availability zone. Once an EBS disk are created, availability zone cannot be changed, so select the zone carefully.</p> <p>4．Select disk type, enter capacity, and select disk quantity.</p> <p><strong>Note:</strong></p> <ul> <li>The capacity range of an EBS disk: 20-2000 G</li> <li>You can either create a new EBS disk or create an EBS disk using a snapshot. <strong>Click Create a Disk with Snapshots</strong>, use the availability zone and EBS type selected before for filtering, and select and check the snapshot, then the capacity will be automatically entered and cannot be modified. This function supports the creation of one disk at a time.</li> </ul> <p>5．Click <strong>Select Instance</strong>, and in the <strong>Select Instance</strong> dialog box that opens select the ECS instance.</p> <p>6．Enter description that is easy to remember.</p> <p>7．Click <strong>Purchase</strong> to enter the <strong>Order Confirmation</strong> page.</p> <p>8．Click <strong>CONFIRM OPEN</strong> to enter the <strong>Payment Result </strong>page.</p> <p><strong>Note:</strong> The creation of an EBS disk takes about two to three minutes. When the status becomes <strong>Using</strong>, the creation of EBS is completed.</p> <p><strong>Method two:</strong></p> <p>1．Log in to the <a href="#https://yun.pingan.com/console/ecs/overview" target="_blank">ECS Console</a>.</p> <p>2．In the left navigation pane, click <strong>Instance</strong> to enter the <strong>Instance Management</strong> page.</p> <p>3．Select the target region and click the name of target instance to enter the <strong>Instance Information</strong> page.</p> <p>4．On the <strong>Disk</strong> tab, click <strong>Create Disk</strong>.</p> <p>5．On the <strong>Create Disk</strong> page, select disk type, enter capacity, select disk quantity and enter description.</p> <p><strong>Note:</strong></p> <ul> <li>Capacity range of an EBS disk: 20-2,000G</li> <li>You can either create a new EBS disk or create an EBS disk using a snapshot. Click <strong>Create a Disk with Snapshots</strong>, use the availability zone and EBS type selected before for filtering, and select and check the snapshot, then the capacity will be automatically entered and cannot be modified. This function supports the creation of one disk at a time.</li> </ul> <p>6．Click <strong>Purchase</strong> to enter the <strong>Order Confirmation</strong> page.</p> <p>7．Click <strong>CONFRIM OPEN</strong> to enter the <strong>Payment Result </strong>page.</p> <p>Note: The creation of an EBS disk takes about two to three minutes. When the status becomes <strong>Using</strong>, the creation of an EBS disk is completed.</p> <p><strong>Result</strong></p> <p>Click <strong>Console</strong> to enter the <strong>Disk Management</strong> page, you can view the EBS disk just created.</p>