StorageWorks 4.3GB 7200 RPM Disk Drive for HSx Cluster Controllers HIGHLIGHTS o Doubles capacity and maximizes performance for the HSx Cluster Controller family o Rated 30 percent higher QIOs than any other 4 GB disk available for most transaction processing workloads o Supported in StorageWorks systems, deskside to datacenter o Capacity allows 4:1 and 2:1 spindle replacement with equal or greater performance improvement PRODUCT DESCRIPTION To meet the growing demand for disk storage capacity and performance, Digital now offers the 4.3 GB 3.5-inch 7200 RPM high capacity, high performance StorageWorks Building Block. The RZ29B-VA is compatible with Fast SCSI-2 single-ended 8 bit interface standards. The RZ29B, with newly released high performance microcode, is the fastest performing 4.3 GB disk drive on the market today. Digital has rated the drive 30 percent faster than other 4 GB disks for most transaction processing workloads. The RZ29B is a logical replacement for upgrading existing SDI and DSSI disks drives. A single RZ29B drive allows the replacement of two RA73 disks with greater I/O performance and lower cost of ownership. The SW800 and SW500 cabinets, SW300-AA, and BA350 StorageWorks enclosures and pedestals support the new 7200 RPM RZ29B-VA disk drives. Digital is providing investment protection and configuration flexibility for users moving to the technologically advanced 7200 RPM drives within these enclosures. Due to the additional heat generated by the use of the high performance 7200 RPM disk drives, low-cost field upgrade kits may be required. For full details, see the "StorageWorks Enclosures and Kits Support 4 GB 7200 RPM Drive" article in this issue. BENEFITS Users requiring lower cost per MB, higher capacity, and greater subsystem performance will realize maximum benefits with the StorageWorks 4.3 GB Building Block. The quick access time of 12.2 ms will benefit those users in high I/O transaction environments. Users with applications requiring high data transfer rates will benefit from the drive's impressive 7200 RPM speed and higher bit density resulting in higher spiral transfer rates. AVAILABILITY AND ORDERING The RZ29B-VA disk drive is available now from Digital, its authorized distributors, and the DECdirect and Electronic Store services. These models are for use on Digital hardware platforms only. Other variants are available for Sun Microsystems, Hewlett Packard, IBM, and other hardware platforms through specialized vertical reseller channels. Custom OEM versions are also available. The RZ29B-VA is immediately supported behind the following controllers and firmware levels: o HSJ30 -- HSOF V2.0 o HSJ4x -- HSOF V2.0 o HSZ40 -- HSOF V2.0 o HSD30 -- HSOF V2.0 o HS1xx -- HSOF V2.0 o HSD05 -- All released versions o HSC/K.SCSI -- V8.4 Order No. Description RZ29B-VA StorageWorks Building Block that provides 4.3 GB of data storage, 7200 RPM SERVICES The RZ29B-VA comes with a five-year warranty. The first year of the warranty is onsite; additional years are return-to-Digital. The product warranty service levels may be upgraded with one of Digital's comprehensive supplemental service offerings. PREREQUISITES Technical Summary The StorageWorks 4.3 GB disk drives feature an average seek time of 8.0 ms and an average latency of 4.2 ms, providing an average data access time of 12.2 ms. The drive contains 1,024 KB of segmented cache buffer that maximizes cache hit rates and increases overall subsystem performance. The RZ29B-VA StorageWorks Building Block offers high data integrity, featuring a 96 bit ECC, and a dedicated server for quick access to data. RZ28 RZ29B Capacity (MBF) 2,100 4,290 RPM 5400 7200 Average seek time (ms) 9.5 8.0 Average access time (ms) 15.1 12.2 Media transfer rates 2.4-4.9 5.9-9 (MB per second) I/Os (50 ms response time) 86 117 MTBF 500,000 800,000 Disk Highlights o Fast SCSI-2 single-ended interface o Seek ordering o Automatic sector re-allocation o Tagged command queuing o Over 1 MB of cache o Self diagnostics __________ IBM is a registered trademark of International Business Machines Corporation. Hewlett-Packard is a registered trademark of Hewlett-Packard Company. Sun is a registered trademark of Sun Microsystems, Inc.