This topic describes how to enable the cold data archiving feature and how to view information about the cold data archived in OSS.
Version requirements
The requirements for Enterprise Edition clusters with CSV format archiving are as follows:
When the product series is Cluster Edition, the kernel version must be one of the following:
MySQL 8.0.1 with revision version 8.0.1.1.47 or later.
MySQL 8.0.2 with revision version 8.0.2.2.10 or later.
When the product series is Multi-master Cluster (Limitless), the kernel version must be 8.0.1.0.13 or later.
Limits
You cannot backup or restore cold data tables in OSS. Cold data tables in OSS are skipped by default when a cluster is restored from backups. For more information, see Overview.
You cannot access cold data tables in OSS from a secondary cluster in a GDN. For more information, see Manage a secondary cluster.
Enable cold data archiving
Log on to the PolarDB console.
In the left-side navigation pane, click Clusters.
In the upper-left corner, select the region in which the cluster that you want to manage is deployed.
On the Clusters page, click the name of the cluster.
In the navigation pane on the left, choose .
On the Data Archive (Cold Data) tab, click Enable.
View information about the cold data archived in OSS
After you enable the cold data archiving feature, you can view information about the cold data archived in OSS buckets on the Cold Data Archiving page, including the amount of archived cold data and information about the archived databases and tables.
After you enable the cold data archiving feature, you cannot disable it. If the amount of archived cold data displayed in the console is 0, no additional fees are incurred.
