EZ5x High-Performance SCSI-2 Solid State Disks HIGHLIGHTS o Fast I/O to enhance SCSI-based system performance o Plugs and plays like magnetic disk into StorageWorks BA350 shelves o OSF/1 support will open the technology to UNIX users PRODUCT DESCRIPTION The EZ5x family of solid state disks extends the power and performance of the technology to encompass SCSI-based systems. Solid state disks use the speed of DRAMs (the storage media) to provide the fastest access to storage subsystem data by eliminating the latency inherent with magnetic disk. Offering an access time of less than 1 millisecond, EZ5x solid state disks maximize system utilization by balancing the power of the processor with high performance I/O. The EZ5x models are based on a standard 5.25 inch, full-height form factor and include the 107 Mbyte EZ51R disk and 428 Mbyte EZ54R disk. Both models employ leading-edge error correction code schemes based on patented technology and integrated data retention systems to provide the highest availability. Also, they both perform 800 I/O operations per second. The EZ5x products are available as StorageWorks Building Blocks and "plug and play" into the StorageWorks BA350 shelf. The BA350 shelf is a modular component of the BA350 Deskside Expansion Unit, the SW500/800 Datacenter cabinets, DEC 7000 AXP and DEC 10000 AXP CPU cabinets, and HSC I/O servers. Initially, the EZ5x drives will support DEC 7000 AXP and DEC 10000 AXP systems through the KZMSA (XMI-to-SCSI) controller. KZMSA, HSJ40, and HSC Channel Card (HSC9X-SX) compliance testing is underway and when completed will verify EZ5x support for VAX systems and clusters. The EZ51R and EZ54R drives both incorporate a unique, fully integrated data retention system (batteries and hard drive) with continuous backup as a standard feature. This system assures data protection if power is lost. The continuous backup feature constantly updates the internal hard drive to best mirror the contents of the DRAMs. This approach conserves battery power, reduces backup time to less than 1.5 minutes, and affords virtually an unlimited number of offload and restore cycles without impacting the device I/O performance. The EZ5x solid state disks, like the ESE50 (SDI) and EF5x (DSSI) solid state disks, are priced to support a wide range of environments and are particularly suited for distributed applications. BENEFITS o Plug and Play packaging -- The EZ5x-VA variants are packaged as a StorageWorks building block for easy installation into StorageWorks and HSC cabinets. Separate, proprietary cabinets are not required. o Leadership prices -- The EZ5x pricing is very competitive on all models. o Higher performance -- Due to its native SCSI interface, the EZ5x drive can execute in excess of 800 I/O requests per second (CPU, application, and workload dependent). o Integrated Data Retention System -- Standard with the EZ51R and EZ54R drives (sophisticated voltage sensing logic, batteries, and a Winchester hard drive), a valuable attribute compared to devices implementing batteries alone to provide temporary non-volatility. AVAILABILITY AND ORDERING The EZ5x disks are available now. All of the packages include the data retention system, user documentation, and field installation. Order No. Description EZ51R-VA 107 Mbyte SCSI solid state disk StorageWorks building block EZ54R-VA 428 Mbyte SCSI solid state disk StorageWorks building block EZ51R-AA (*) 107 Mbyte SCSI solid state disk EZ54R-AA (*) 428 Mbyte SCSI solid state disk (*) The "AA" variants are supplied as a "brick only" for integration into non-Digital systems able to accept 5.25-inch, full-height SCSI storage devices. No mounting hardware or cabling is included.