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Storage Media

Super DLT tape™ 1

Model Name : SDLT1-320

 

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Main Features

Innovative Super DLT format delivers high storage capacity.

Cleaning Cartridge

Holds up to 320GB, with 32MB/s transfer speed

Using the SDLT320 drive, a single Super DLT cartridge can store 160GB native or 320GB compressed, with impressively fast data transfer rates reaching 16MB/s native or 32MB/s compressed.

*With the SDLT220 drive, capacity is 110GB native, 220GB compressed and transfer speed is 11MB/s native and 22MB/s compressed.

Higher durability and tape travel stability

Thanks to a new cartridge design, Sony Super DLTtape has the durability to withstand repeated load/unload cycles in library environments. The new cartridge also contributes to improved tape travel stability.

Sharply reduced error rate

Sony sharply reduced the error rate during high density recording by improving tape surface smoothness and using a thinner magnetic layer, both of which are key to higher storage capacity in magnetic tape media.

First optical servo in the industry

Increased recording track density is essential to higher storage capacity. Super DLT features the industry's first optical servo technology, providing the tracking precision that is crucial to reading these narrower tracks.

Migration path to the future

While maintaining compatibility with previous-generation DLT products, the Super DLTtape format offers continuing improvements in recording capacity. This migration path means a long-term storage platform that you can use with confidence.

Main Specifications

  SDLT1-320 DL4TK88 DLTVS1-160
Format SDLT DLT DLTVS1
Recording Capacity
(Compressed *1)
w/SDLT220 drive:
110GB(220GB )
w/SDLT320 drive:
160GB(320GB)
w/DLT4000 drive:
20GB(40GB)
w/DLT7000 drive:
35GB(70GB)
w/DLT8000 drive:
40GB(80GB)
w/DLT VS80 (DLT1) drive:
40GB(80GB)
w/DLTVS160 drive:
80GB(160GB)
w/DLT-V4 drive:
160GB(320GB)
Maximum Data Transfer Rate
(Compressed *1)
w/SDLT220 drive:
11MB/s (22MB/s)
w/SDLT320 drive:
16MB/s (32MB/s)
w/DLT4000 drive:1.5MB/s (3MB/s)
w/DLT7000 drive:5MB/s (10MB/s)
w/DLT8000 drive:6MB/s (12MB/s)
w/DLT VS80 (DLT1) drive:3MB/s (6MB/s)
w/DLTVS160 drive:
8MB/s (16MB/s)
w/DLT-V4 drive:
10MB/s (20MB/s)
Tape Type Metal Particle Metal Particle Metal Particle
Coercive Force (kA/m) 151 151 151
Electric Resistance
(Magnetic Side: Ω/sq)
1×107 1×107 1×107
Electric Resistance
(Back Side: Ω/sq)
1×105 1×105 1×105
Durability 1,000,000 passes 1,000,000 passes w/DLTVS160 drive:
10,000 load/unload threads
w/DLT-V4 drive:
up to 200 uses
Archival Life 30 years 30 years 30 years
Linear Recording Density
(kbpi)
w/SDLT220 drive:133
w/SDLT320 drive:193
w/DLT4000 drive:82
w/DLT7000 drive:86
w/DLT8000 drive:98
w/DLT VS80 (DLT1) drive:123
w/DLTVS160 drive: 175
w/DLT-V4 drive: 219
Number of Data Track 448 w/DLT4000 drive:128
w/DLT7,8000 drive:208
w/DLT VS80 (DLT1) drive:168
w/DLTVS160 drive: 240
w/DLT-V4 drive: 352
Coding Channel PRML PRML PRML
Tape Width (mm) 12.65 12.65 12.65
Tape thickness (µm) 8.8 8.8 8.8
Tape Length (m) 559 557 557
External Dimensions (mm) 105.8×105.4×25.4
Weight (g) 275 (with case) 292 (with case) 282 (with case)
Environmental Requirements Operation Conditions (°F(°C);%RH) : 50~104 (10~40);20~80 *2
Storage Conditions (°F(°C);%RH) : 60~90 (16~32);20~80 *2
Transportation Conditions (Recorded) (°F(°C);%RH) : 41~90 (5~32);5~80 *2
Transportation Conditions (Unrecorded) (°F(°C);%RH) : -9~118 (-23~48);5~80 *2

*1 Compression ratio 2:1
The actual capacity, compression ratio and data transfer rate may vary depending on equipment, software usage, environments and data.
1GB= 1 billion bytes

*2 Maximum wet bulb temperature : No condensation at 79°F (26°C).


Operating Instructions


Drive/Media Compatibility table

Media Drive
DLT2000 DLT2000XT DLT4000 DLT7000 DLT8000
Super DLTI Rejected Rejected Rejected Rejected Rejected
DLT Tape VS1 Rejected Rejected Rejected Rejected Rejected
DLT Tape IV
(Compressed)
Rejected Rejected Read/Write
20GB(40GB)
Read/Write
35GB(70GB)
Read/Write
40GB(80GB)
DLT Tape III XT
(Compressed)
Rejected Read/Write
15GB(30GB)
Read/Write
15GB(30GB)
Read/Write
15GB(30GB)
Read/Write
15GB(30GB)
DLT Tape III
(Compressed)
Read/Write
10GB(20GB)
Read/Write
10GB(20GB)
Read/Write
10GB(20GB)
Read/Write
10GB(20GB)
Read/Write
10GB(20GB)
Media Drive
DLT VS80 (DLT1) DLT VS160 SDLT220 SDLT320 SDLT600
Super DLTI
(Compressed)
Rejected Rejected Read/Write
110GB(220GB)
Read/Write
160GB(320GB)
Read
DLT Tape VS1
(Compressed)
Rejected Read/Write
80GB(160GB)
Rejected Rejected Read
DLT Tape IV
(Compressed)
Read/Write
40GB(80GB)
Read Read Read Rejected
DLT Tape III XT Rejected Rejected Rejected Rejected Rejected
DLT Tape III Rejected Rejected Rejected Rejected Rejected

*1 Compression ratio 2:1

Thin-layer Coating

Ultra-thin magnetic layers <Conceptual drawing>

Ultra-smooth backcoating layers

Thin-layer coating and smoothing technologies

Ultra-thin magnetic film technology made it possible to form magnetic coatings composed of uniform, submicron particles for high signal output and stability in high-density recording.

To achieve high recording density, the Super DLT format uses a Magneto Resistive Cluster (MRC) head. MRC is a highly sensitive playback head that detects minute projections on the tape surface as noise. For Super DLT, we developed a tape with a particularly smooth surface.

Pivoting Optical Servo (POS)

Pivoting Optical Servo (POS)

As compared to DLT IV, Super DLT has higher track density, making accurate tracking a critical factor for high-density recording. POS enables a high-capacity cartridge without wasting recording area for servo signals. The optical head traces existing grooves on the backside of the tape, with the head position adjusted on the track in sync with data fed back to the optical head. POS uses a noncontact optical head that avoids damage to the tape surface.

[PRML: Partial Response Maximum Likelihood]
Unlike DLT IV, Super DLT uses PRML signal processing for recording/playback. PRML improves data reliability and helps increase recording density.

Buckling Mechanism

Reliable Buckling Mechanism

Unlike DLT IV, Super DLT's cartridge has a new buckling mechanism at the tape ends that enables continued use through repeated loading and unloading cycles.