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Hitachi delivers extreme performance and reliability with new 15K RPM Enterprise hard drives.

Hitachi Global Storage Technologies Hitachi Global Storage Technologies is a wholly owned subsidiary of Hitachi, Ltd. Summary
Hitachi purchased IBM's hard disk drive division, integrated their own HDD operations, and launched the company in 2003.
 (Hitachi GST GST
Greenwich sidereal time

GST (in Australia, New Zealand, and Canada) Goods and Services Tax
) has announced that it has begun shipping Ultrastar 15K147 hard drives with Serial Attached SCSI See SAS.  (SAS (1) (SAS Institute Inc., Cary, NC, A software company that specializes in data warehousing and decision support software based on the SAS System. Founded in 1976, SAS is one of the world's largest privately held software companies. See SAS System. ) and 4 Gb/s Fibre Channel (4GFC GFC Geelong Football Club (Australia)
GFC GMD (Ground-Based Midcourse Defense) Fire Control
GFC Georgia Forestry Commission
GFC Generic Flow Control
GFC Grace Fellowship Church
GFC Gaelic Football Club
) interfaces. SAS is a next-generation serial interface designed to extend the capabilities of today's parallel SCSI drives and provide users with improved performance, system design flexibility and product reliability. Hitachi will be first in the industry to ship 4GFC drives, which are expected to benefit enterprise server and storage customers who require the fastest, most reliable hard drives available today.

The Ultrastar 15K147 is Hitachi's highest-performer, delivering average seek times as fast as 3.3 ms, average latency of 2 ms and as much as 33 percent more I/Os per second compared to 10,000 RPM products. The Ultrastar's performance characteristics allow customers to access their data more quickly and efficiently. The drive is ideally suited for use in mission-critical enterprise computing environments, such as online transaction processing See transaction processing and OLCP. , data analysis and other multi-user applications.

The new drives are available in 36, 73 and 147 GB capacities and feature large, 16 MB cache sizes to minimize command overhead and improve average read/write response times. Hitachi will continue to offer the Ultrastar 15K147 with Ultra320 SCSI SCSI
 in full Small Computer System Interface

Once common standard for connecting peripheral devices (disks, modems, printers, etc.) to small and medium-sized computers. SCSI has given way to faster standards, such as Firewire and USB.
 for customers using parallel-based storage systems.

A key benefit of SAS is that it can coexist with Serial ATA (SATA (Serial ATA) A serial version of the ATA (IDE) interface, which has been the de facto standard hard disk interface for desktop PCs for more than two decades. The original Parallel ATA (PATA) interface was launched in 1986. ) within a single storage enclosure, using common backplanes, connectors and cabling. This will enable IT managers to deploy systems that use a combination of SAS drives to provide the highest levels of system performance and SATA drives as a low-cost-per-gigabyte solution for nearline storage, disk-to-disk backup and other low-I/O applications. This allows for a great deal of flexibility in designing disk arrays and other storage systems that provide exactly what the application requires for the least cost and maximum return on investment.

SAS supports data transfer rates of up to 3 Gb/s and full duplex, point-to-point connections so that each drive has a dedicated connection to the host. While parallel SCSI limited users to 15 drives per controller, SAS architecture supports up to 16,384 connections for much greater scalability.

4GFC hard drives have been designed for use in storage area networking, file sharing, workgroup and scientific/engineering environments. The interface standard allows for a data transfer rate of up to 400 MB/s half-duplex and up to 800 MB/s full-duplex, per port. The higher performance 4GFC interface is fully backward compatible with 2 Gb/s and 1 Gb/s hardware and has all of the same robust enterprise features as its predecessors, at twice the data transfer rate performance.

"Hitachi has been at the forefront of SAS and 4 Gb/s Fibre Channel development and has been testing and demonstrating prototype drives at numerous industry events in the past year," said Manjeshwar Bhat, general manager, Enterprise HDD (Hard Disk Drive) See hard disk and HDD caddy.

HDD - hard disk drive
 Business Unit, Hitachi Global Storage Technologies. "Hitachi has completed extensive interoperability testing with critical system component suppliers to help ensure a smooth technology transition, with streamlined product qualifications and overall customer satisfaction."

The Ultrastar 15K147 is built on a mature design platform to provide greater reliability. Several Ultrastar 15K147 design attributes combine to protect customer data, including Rotational Vibration Safeguard (RVS RVS Reverse
RvS Raven Shield (game)
RVS Roestvrij Staal
RVS Relative Value Scale
RVS Remote Video Surveillance
RVS Raytheon Vision Systems
RVS Relative Value Schedule
RVS Real Video Stream
RVS Regular Valve, Steam
) technology. RVS is used to protect drive performance in high rotational vibration environments, primarily in multi-drive configurations. Fluid dynamic bearing (FDB FDB Fluid Dynamic Bearing (hard disk technology)
FDB Font Definition Block (Macromedia Flash SWF file)
FDB Forwarding Database
FDB First Data Bank
FDB Flexor Digitorum Brevis
) motors deliver a low acoustic rating and improved data integrity. Hitachi also offers the only 3.5-inch enterprise-class hard drive utilizing a head load/unload ramp, which minimizes integration induced drive damage.

Hitachi's Ultrastar 15K147 drives meet the Restriction of Hazardous Substances (RoHS) compliance directive recently issued by the European Union European Union (EU), name given since the ratification (Nov., 1993) of the Treaty of European Union, or Maastricht Treaty, to the

European Community
 (EU). The EU directive requires electronics manufacturers to significantly reduce lead and other selected content from their products by August 2006. Hitachi recently announced that all Hitachi hard drive products introduced in 2005 and beyond will be RoHS compliant.

Hitachi will begin shipping Ultrastar 15K147 drives with SAS and 4GFC interfaces this month and will be in full volume production by the end of July.
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Title Annotation:Hitachi Global Storage Technologies, radio packet modem
Publication:EDP Weekly's IT Monitor
Date:May 30, 2005
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