<table border="1" cellpadding="0" cellspacing="0"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top"> <p><strong>Item </strong></p> </td> <td style="background-color:#ededed; vertical-align:top"> <p><strong>Ping An Cloud Redis</strong></p> </td> <td style="background-color:#ededed; vertical-align:top"> <p><strong>Customer-built Redis database using self-purchased servers</strong></p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Service availability</p> </td> <td style="vertical-align:top"> <p>99.967%</p> </td> <td style="vertical-align:top"> <p>You have to guarantee service availability on your own. You need to purchase equipment to set up the master-subordinate system for high availability and build RAID.</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Data reliability</p> </td> <td style="vertical-align:top"> <p>99.99%</p> </td> <td style="vertical-align:top"> <p>You have to guarantee data reliability on your own. You need to purchase equipment to set up the master-subordinate system for high availability, and build RAID.</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>System security</p> </td> <td style="vertical-align:top"> <p>Database security vulnerabilities are fixed in time.</p> </td> <td style="vertical-align:top"> <p>You have to deploy security solutions on your own. You need to fix database vulnerabilities, which can be rather expensive.</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Hardware and software investment</p> </td> <td style="vertical-align:top"> <p>Pay-as-you-go without prior hardware and software investment.</p> </td> <td style="vertical-align:top"> <p>Purchasing database servers can incur a high cost.</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Maintenance cost</p> </td> <td style="vertical-align:top"> <p>No cost for maintenance.</p> </td> <td style="vertical-align:top"> <p>You need to employ the full-time database administrator (DBA) to maintain the cluster, which leads to a high labor cost.</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Deployment and scaling</p> </td> <td style="vertical-align:top"> <p>Elastic scaling, fast deployment, and instant activation</p> </td> <td style="vertical-align:top"> <p>You need to do a lot of work, such as procuring hardware for scaling, building engine rooms for management, and deploying machines, which can take a lot of time.</p> </td> </tr> </tbody> </table>