DDS Backup Tape Standard

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DAT-72
tape media is based on the basis technology of before media format of
DDS for achieving 36 GB native logging capacity. Metal particle formulation
(MP++++) is used in the DAT72 tape media. The logging capacity of DAT-72 tape
format is about 80 percent more than the DDS4 technology for of the
advancements in 4 important districts. These places of advancements are the increased
170m tape length,[link widoczny dla zalogowanych], increased density of tracks,[link widoczny dla zalogowanych], advancement in the recording
density and increasing it to 162 KBpi from 122 KBpi, and higher transitioning
of MP formulation’s output. </s
class="MsoNormal" style="text-align: justify;">The
standard of DAT (digital audio tape) was amplified in 1987 and it offered
digital sound of up apt 3 hours above single file tape. This technology accustomed the
rotating heads (helical scan) which was same for namely utilized in the VCR (movie
cassette recorder). DDS was based on the standard of digital audio tape and it
also utilized the similar machinery and technology. The chart of the tape
ammunition is similar merely the tape formulations are assorted. The peccadillo
improvement of digital audio tape has 2 levels known for C-1 and C-2. On the
other hand the DDS tape format has variant third class of misdeed improvement C-3.
This third level recovers the errors namely are many caustic because the digital audio
tape (DAT). Error correction C-1 and C-2 act their feature at pathway while
the third level C-3 works over alley team.
The
capacity has approached threshold of 20 GB in the DDS-4 backup tape format. Media
of DDS4 follows familiar data tape prototype with increased tape length and more
advanced formulation of MP-media. Output of the metal particle MP+++
formulation is also on the higher side and was designed for patronizing the
higher DDS-4 tape format’s track densities. Need arose to formulate tape media
having the competence to produce superior output signals as the track pitch was reduced.
So improvements and advancements were made in several areas of DDS4 data tape
media except its MP formulation as its media thickness was also lowered to
5.9μm. This made possible to increase the length of the DDS-4 tape coil to 150m
from its previous tape length of 125m.
Modulation noise
is depressed and the ratio of signal to noise is also improved in the base film
of DDS-4 backup tape format. Tough base film of DDS-4 limits the abbreviation
and expansion of the data tape in extreme temperatures (both very cheap and
high). Smooth tape surface and back coating lowers the noise, maximizes the
efficiency and achieves higher friction coefficient. Back-coating of DDS4 data
media is specifically designed for helping the DDS data tape in effecting ideal
friction that perfectly fulfills the conditions with DDS data tape pedal. Back
coating of DDS-4 media is very conductive in ecology and it protects the tape
from the errors, dropouts and prevents cordless charges from fascinating dust.
The tape of DDS4
was made thinner but it was necessity that the rigidity and strength of the
tape should be same as that of its previous DDS tape media had. Its durability
was also increased so that it could stomach the higher speed of the rotational
drums that are necessity for the increased data speed. The incompatible absences
were resolved by the back coating the tape media membranes and by enhancements in
base movie. The base membrane was made smoother for resolving issues of marker dropout
and rumpus modulation in helical scan as its speeds of head to tape is very
lofty. Its base film is also quite difficult and therefore it tin bear the tall speed
amending & questing.