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Dell Unity also provides performance optimization through FAST™ Cache and FAST VP on Dell Unity hybrid systems. Since file systems are provisioned out of the same Unified pools, FAST VP can be applied directly to individual file systems themselves, rather than second hand through file LUNs forming a file storage pool, resulting in greater granularity and efficiency. Because of this, FAST can be leveraged more effectively and granularly on Dell Unity file systems. One such example is FAST VP tiering policies, which can be assigned on a per file system basis, allowing each individual file system to be assigned one of the following policies: highest available tier, start high then auto-tier (default), auto-tier, or lowest available tier. As a consequence, it is possible to have a single unified storage pool consisting of many file systems with different tiering policies, allowing more flexibility when configuring a system to take advantage of FAST VP’s powerful tiering capabilities. Furthermore, this tiering is equally as effective for both file and block resources because they share a unified storage pool. Similarly, FAST Cache benefits LUNs and file systems equally, ensuring that appropriate transactional file workloads see a large performance improvement from even a small amount of flash capacity. For more information about FAST VP and FAST Cache, reference the Dell Unity: FAST Technology Overview white paper on Dell Technologies Info Hub.