Audit log
Use the audit log to access a record of operations, including who performed the operation, when it was performed, and on which entities the operation was performed.
Impact on secondary storage
When the audit log is active, a record is written to secondary storage for every applicable operation instance. Because of this, you can expect an increase in disk usage by a factor of 1.5 to 2.0.
warning
The audit log is enabled by default. Because of the increase in resource usage on secondary storage, you may see increased costs associated with this feature.
You can configure the audit log to fine tune log thoroughness and resource usage according to your needs.