Quantum DLTtape DLT 2000, Руководство пользователя

Страница: 54 / 219

WHY CUSTOMERS WANT DLTtape SYSTEMS 4.12
The DLT1 drive uses DLTtape IV media, so DLT1 drives can read
any DLTtape IV cartridges recorded on DLT 4000 drives. And, of
course, DLTtape IV cartridges recorded on DLT1 drives can be read
by DLT 4000 drives and by SDLT 220 drives.
Super DLTtape I Media Compatibility
Super DLTtape I media provides backward read compatibility
with DLT 4000, DLT1, DLT 7000, and DLT 8000 drives using
DLTtape IV cartridges. To read DLTtape IV cartridges recorded
on a DLT 4000 drive or DLT1 drive, the Super DLTtape Backward
Read Compatible head remains in an upright position. To read
DLTtape IV cartridges recorded on a DLT 7000 or DLT 8000 drive,
the Super DLTtape head tilts to read data recorded using Symmetric
Phase Recording (SPR). (See Figure 4-7.) That means data written
on any DLTtape IV cartridge using any DLT 4000, DLT1, DLT 7000,
or DLT 8000 drive can be read on a Super DLTtape drive. That
includes the majority of all the DLTtape drives ever built, and a very
high percentage of the 55 million DLTtape cartridges ever built.
Next, we’ll take a closer look at the features that make DLTtape
technology the most reliable on the market today.
Tape direction when
in this orientation
Tape direction when
in this orientation
Figure 4-7 The Super DLTtape Backward Read Compatible Head
Assembly
tilts to read DLTtape IV cartridges recorded on DLT 7000 and
DLT 8000 drives, which use Symmetric Phase Recording (SPR).