Home > Storage > Unity XT > Storage Admin > Dell Unity Dynamic Pools > Viewing the Hybrid flash drives within the system
In Dell UnityOS 5.2 and later, changes have been made to the System Settings > Storage Configuration > Drives page for hybrid systems. Along with the traditional and dynamic pool information that is displayed for all-flash systems, hybrid systems also display the FAST Cache column. The FAST Cache column displays how many drives are currently configured in FAST Cache. An example of the Drives page can be seen in Figure 16.
Also shown in Figure 16, the total number of Available 1.2 TB SAS 10K drives is 12, while the Total drive count within the system is 16. In this system 1.2 TB SAS drives are used as the system drives. As SAS and NL-SAS system drives are not allowed in a dynamic pool, as outlined in the Supported drives section of this paper, four drives are not available. These drives can be placed into a traditional pool if required.
Figure 16 System Settings > Storage Configuration > Drives (Hybrid-flash system)