If this document does not correspond to your current software version, you can go to Download Center to find other available document versions.


QTS 5.0.x

Download (PDF)

Qtier 2.0 IO Aware

Qtier 2.0 IO Aware is a feature available in QTS version 4.3.3 or later. With IO Aware, QTS reserves 25% of the SSD tier capacity in a Qtier storage pool for faster access performance. If data in the capacity or high speed tiers experiences a high number of read or write requests, QTS immediately moves it to reserved SSD space instead of waiting to move it using auto-tiering. This improves random I/O performance, offering performance similar to having an SSD cache.