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configuration and installation wizards.
Cables are easily identifiable, easy to attach without the need for thumb-screw and robust enough
to ensure reliable retention.
Resource abundance
Native USB ports are universally available in systems and servers
Multiple ports ensure that port resources are widely available, reducing the conflict between
devices over scarce connectors.
Port expansion is easy, USB hubs can be installed to add additional ports supporting up to 127
devices on a system
Low cost, reliable connectivity
By providing native USB DDS/DAT drives there is no need for customers to purchase additional
host-bus adapters
HP's USB 2.0 implementation benefits from the built-in reliability and failure recovery inherent in
the underlying SCSI protocol
USB 2.0 has multiple levels of physical error detection and recovery which ensure reliability on a
par with SCSI and Fibre-channel interfaces.
USB 2.0 compliance certification provides thorough, ongoing reliability and quality control. A well
implemented USB network should use only USB 2.0 compliant components, including USB 2.0
certified cables.
Sustainable performance
In HP tests it has been shown that USB 2.0 can sustain the performance of an HP DDS/DAT drive
at around 30MB/sec, a bandwidth that would sustain the HP DAT 72 drive operating with a
compression ratio of 9:1!
USB 2.0 performance provides sufficient bandwidth to support all future generations of DDS/DAT
drives specified on the DAT Manufacturers Group Roadmap
Native SCSI
Native SCSINative SCSI
Native SCSI
In addition to offering native USB and SAS connectivity, HP remain committed to producing DAT drives
with SCSI interfaces for the foreseeable future. This widely respected interface continues to meet
mainstream server requirements for performance and reliability.
Compression
CompressionCompression
Compression
DDS uses built-in hardware compression using the 'DCLZ' data compression algorithm. Data
compression is host-selectable with the default that compression is turned on. Typical data compression
is 2:1, but actual compression depends on the type of data being compressed and can be more or less
than 2:1.
QuickSpecs
HP StorageWorks Tape Drives
HP StorageWorks Tape DrivesHP StorageWorks Tape Drives
HP StorageWorks Tape Drives
Product Highlights
DA - 11883 Worldwide — Version 26 — November 12, 2007
Page 12
(31 stránky)
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