1. Dell PowerFlex: Introduction to PowerFlex (Version 4.5
April 2023)
Page 18
Section: Rebuilds and rebalances: "PowerFlex rebuilds and rebalances are background I/O activities that run in the storage pool. The system administrator can control the I/O priority of these background activities to favor either the background activity or the foreground application I/O." This directly links the control of I/O priority to the rebuild process.
2. Dell PowerFlex: Best Practices Guide (Version 4.5
April 2023)
Page 21
Section: Rebuild and rebalance performance: "The rebuild and rebalance processes are background activities that consume I/O resources. PowerFlex allows you to control the performance of these activities to balance between the time it takes to complete the activity and the impact on the application performance." This confirms that throttling policies are used to manage the priority and impact of rebuilds.
