Top VDI storage challenges and tips for overcoming them.
- VDI produces small, random write-intensive IO in a steady state and bursts of IO during peak workloads for short periods. Legacy disk-based storage arrays do not perform well with this kind of random IO pattern. Adding flash as read-cache is not sufficient, as it typically cannot deliver consistent performance in this type of environment.
There are a lot of new flash vendors that have emerged on the market with flash-based storage to help ease the pain points in this area. Look for solutions that leverage flash as first-class storage for reads and writes. This will help with the latency that occurs during sporadic workloads to provide consistent performance.