This chapter explains the Automated QoS function.
The Automated QoS function, in respect to target values of response time (hereinafter referred to as "target response time") configured by the user in relation to volumes being used, performs automatic tuning in such manner that the actual measured response times reached the targeted values.
For the target response time, the average of all Read + Write response time for the volume per unit time should be specified.
The target values configured with this function are target values in relation to the volumes being used by applications. Even when a volume has reached its performance target, as it is possible that the performance target has not been achieved as an application, while configuring target values for the performance of volumes, it is necessary for the user to confirm whether the application has achieved its performance target. When the performance target of the application has not been reached, it is necessary to reconfigure the performance target values of the volumes.
