In the enterprise segment where 1U and 2U servers are common, PCI Express SSDs are very attractive. You may not always have a ton of 2.5″ drive bays but theres usually at least one high-bandwidth PCIe slot unused. The RevoDrive family of PCIe SSDs were targeted at the high-end desktop or workstation market, but for an enterprise-specific solution OCZ has its Z-Drive line.
Anandtech is breaking new ground covering some Enterprise level segments of the Solid State Disk industry. While I doubt he’ll be doing ratings of Violin and Texas Memory Systems gear very soon, the OCZ low end Enterprise PCIe cards is still beginning to approach that target. We’re talking $10,000 USD and up for anyone who wants to participate. Which puts it in the middle to high end of Fusion-io and barely touches the lower end of Violin and TMS not to mention Virident. Given that, it is still wild to see what kind of architecture and performance optimization one gets for the money they pay. SandForce rules the day at OCZ for anything requiring the top speeds for write performance. It’s also interesting to find out about the SandForce 25xx series use of super-capacitors to hold enough reserve power to flush the write caches on a power outage. It’s expensive, but moves the product up a few notches in the Enterprise level reliability scale.