Hitachi's HDDs for enterprise and mobile applications.Hitachi America has two new additions to its hard disk drive (HDD (Hard Disk Drive) See hard disk and HDD caddy. HDD - hard disk drive ) family, unveiling the 3.5-inch DK32EJ and 2.5-inch DK23DA product lines. The DK32EJ doubles the current industry standard for 1-inch high drives with an available storage capacity of 147.8GB, slaking claim as the highest capacity 10,000 RPM 3.5-inch enterprise class drive. The 2.5-inch DK23DA offers a maximum storage capacity of 40GB while providing shock protection and Fluid Dynamic Bearings (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 ) technologies that make for reliable, robust, quiet operation. The DK32EJ hard drive is configured with a five-disk, ten-head design. It has an areal density of 30Gbit per square inch, and a low power consumption level of 11 watts. It features a maximum sustained data transfer rate of 66MB/sec, a 17 percent increase compared to previous models. Its transfer rate has a rotational speed of 10,025 RPM and a load/unload technology that allows the drive to achieve a non-operational shock specification of 250G at 2ms. In addition to the 147.8GB drive, other members of the DK32EJ family include 73.9GB and 36.9GB capacity drives, all of which incorporate S.M.A.R.T. technology, which serves high data processing requirements in SANs, NAS (1) See network access server. (2) (Network Attached Storage) A specialized file server that connects to the network. A NAS device contains a slimmed-down operating system and a file system and processes only I/O requests by supporting the popular , RAID, data mining, A/V (1) (Audio/Video) Refers to equipment and applications that deal with sound and sight. The A/V world includes microphones, tape recorders, audio mixers, still and video cameras, film projectors, slide projectors, VCRs, CD and DVD players/recorders, amplifiers and , server, and other high-end applications. The 2.5-inch DK23DA hard disk drive is configured with a one to two-disk, one to four-head layout, depending on the capacity. It features glass media and load/unload technology in addition to shock sensor technology. Each member of the DK23DA family incorporates Fluid Dynamic Bearings (FDB) in the spindle motor that allow for quiet operation and improved shock characteristics. These features enable it to employ a non-operating shock tolerance of 800G at 1ms, and an operating shock tolerance of 180G at 2ms. In addition to the 40GB model, the DK23DA family includes drives with storage capacities of 30GB, 20GB, and 10GB. The DK32EJ will be available in both Ultra 320 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. and 2Gbit FCAL FCAL Fibre Channel Arbitrated Loop , Hitachi's fifth generation of Fibre Channel interface drives for OEM customers, in Q2 this year. The DK23DA is currently available in ATA (1) (AT Attachment) The specification for IDE drives. See IDE. (2) See analog telephone adapter. ATA - Advanced Technology Attachment 100 interface. |
|
||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion