- - AUTOMATIC DATA PLACEMENT MANAGER IN MULTI-TIER ALL-FLASH DATACENTER

摘要

The present invention relates to a system for executing auto-tiering operations. The system can include multiple storage devices and provide multiple resources. The storage devices can store data related to virtual machines. A receiver can receive performance data and input/output commands related to the virtual machines. A transmitter can transmit a response for input/output commands. An auto-tiering controller can select a storage tier for storing the data related to the virtual machine and migrate the data between storage tiers in accordance with performance data. The storage tiers are selected while taking performance changes of virtual machines and migration costs related to the migration of data between the storage tiers into account, thereby optimizing the performance of all virtual machines for all storage tiers.