An exponential increase in CPU power has shifted the bottleneck of many performance-hungry application systems to disk I/O, as disk performance improvements have not been able to keep up with CPU speeds. With Tier-0 SSD-based arrays in an EqualLogic iSCSI SAN, depending on user load, latency-sensitive OLTP database applications can gain up to an estimated 75% increase in transaction throughput or up to a 60% decrease in response times by isolating and moving read-intensive datasets from SAS disks to SSDs as compared to moving the same datasets to additional SAS disks.
