IoMemory Today we have the Fusion-io ioDrive installation on VMware vShphere 5.5 guide for the VMware users. In case you missed it – we had our posted recently and notes on. VMware applications are broad and high-speed storage, especially when multiple VMs are hitting a datastore, is essential. Fusion-io cards are ideal for low latency, high IOPS transactions. One first needs to find the proper drivers and firmware to make these cards work. Fusion-io requires registration for driver/firmware download but these cards can be vendor locked. We have found, for example, that HP cards running Ubuntu Linux can use standard Fusion-io drivers.
Often though the vendor lock means you need to use specific OEM firmware. This is a HP unit which requires HP firmware. To get the firmware: Search 600281-B21 (320GB SLC Duo), 600278-B21 (SLC 160GB) and etc for MLC parts: Fusion-io ioDrive installation – HP Support Part Number Search Search for the OS, in this case VMware vSphere 5.5.
Fusion Io Drivers
Western Digital Transforms the Mobile Experience with New High-Performance Solutions. Bauerle and Company Ease the Tax Time Burden with Fusion. Our guide to installing an OEM branded (HP) Fusion-io ioDrive on Windows Server 2012 R2 including firmware flashing, driver installation and formatting. 
Actually, looks like that download has a fusion-io firmware file in it, not HP.