SDLT Tape Drives

RAID
Tape Drives
- 4mm DDS/DAT
- 8mm
- AIT
- SDLT
- 3480/3490
- 9840/9940
- LTO
Libraries

Example of our DLT drive in a desktop cabinet

The MDL line of SDLT tape drives provide a complete set of external tape backup and archiving solutions for high performance network servers and workstations, delivering up to 320 GB compressed storage capacity and 960 MB/minute native throughput.

Highest Capacity and Performance in a Single Tape Drive

SDLT drive technology typically delivers two to three times the capacity of other tape technologies, with sustained throughput of up to 960 MB/minute native and storage capacity of up to 320 GB per cartridge (with 2:1 compression). It provides high capacity for today’s rapid data growth, and throughput to keep your system productive even with shrinking backup windows. SDLT technology also provides rapid file restore, with access to any file averaging 70 seconds.

Industry Leading Data Integrity and System Life

SDLT tape’s linear recording system, accurate optical tape guiding system, and adaptive control mechanism provide significantly longer tape and head life than other tape technologies. The media is rated for 1,000,000 stop/start passes or approximately 10,000 cartridge uses—up to 100 times that of other tape drives. SDLT uses an advanced Reed Solomon error correction code to provide a hard error rate of less than 1 in 10¹⁷ bits read. The MTBF for all models is greater than 80,000 power - on hours at 100% duty cycle. SDLT uses an advanced Reed Solomon error correction code to provide a hard error rate of less than 1 in 10¹⁷ bits read. The SSDLT 320 MTBF is greater than 250,000 power on hours at 100% duty cycle.

Support for Growing Systems

The MDL SDLT drive subsystems support all modern SCSI standards. Up to fifteen units can be daisy-chained together for increased capacity on a single host connection.

Full Applications Support for Windows NT and UNIX

With integrated Quantum SDLT drives, all MDL SDLT subsystem models are supported by all leading backup and archive applications software for Windows NT and a variety of UNIX platforms, including IBM AIX, Sun Solaris, HP-UX, DEC ULTRIX, Silicon Graphics IRIX, and Linux.

Technical Specifications

Drive and Performance

Model:	SDLT 320
Drive Type:	SDLT
Data Capacity Native:	160 GB
with 2:1 Compression:	320 GB
Transfer Rate Native:	960 MB/min.
with 2:1 Compression:	1920 MB/min.
File Access Time (avg.):	70 sec
Data Compression:	On-board DLZ with variable block size
Recording Format:	Multiple Track, Linear Serpentine
Data Buffer:	2MB cache buffer adjusts to host’s rates
Media:	Super SDLTtape I
Tape Length:	1800 ft.
Recording Density (bits/in):	193 K bits/inch
Tracks Per Tape:	448

Operation

Indicators:	Write Protected LED, Tape In Use LED, Use Cleaning Tape LED, Tape Density LED, Operational LCD with 9300D and 9400D
Controls:	Density Select, Tape Unload
Interface:	16-bit SCSI-2, Embedded Controller, Single-Ended, Low or High Voltage Differential

Reliability

Hard Error Rate:	1 in 10¹⁷ bits
Tape Shelf Life:	30 years minimum (at 20°C, 40% RH)
Maintenance:	Periodic drive head cleaning with SDLT Cleaning Cartridge
MTBF:	Greater than 250,000 power-on hours
MTTR:	Within 30 minutes (drive replacement)
Error Correction Code:	Reed Solomon ECC, 64-bit CRC on each 4KB of data, 16-bit CRC on each record, Internal parity checking on cache buffer

Physical

Dimensions:	5.75"H x 6.75"W x 13.25"D (14.6cm x 17.1cm x 33.6cm)
Weight:	13 lbs. (5.9kg)

Environmental

Electrical:	100-240 / 200-240 VAC, 50-60 Hz, 1.0-0.5A, Automatic voltage range selection
Max Altitude:	8,000 ft. (2,428 m)
Operating Temperature:	10°C to 40°C
Operating Humidity:	20% to 80% Non-Condensing
Noise Level:	35 dBA
Vibration:	0.25g (5-500Hz) Operating, 0.50g (5-500Hz) Storage/Shipping
Shock:	2g Operating, 30g Storage/Shipping
Heat Output:	125 BTU/Hour
Model:	All (DS9400D, DS9700D)
Electrical:	100-240 / 200-240 VAC, 50-60 Hz, 1.0-0.5A, Automatic voltage range selection
Maximum Altitude:	8,000 ft. (2,428 m)
Operating Temperature:	10°C to 40°C
Operating Humidity:	20% to 80% Non-Condensing
Noise Level:	35 dBA
Vibration:	0.25g (5-500Hz) Operating, 0.50g (5-500Hz) Storage/Shipping
Shock:	2g Operating, 30g Storage/Shipping
Heat Output:	125 BTU/Hour

Compliance & Certification

Safety:	UL-1950, CSA950, EN 60950
Emissions:	FCC #47 CFR, Part 15, Class B, CSA C108.8M, EN 55022, Class B
Susceptibility:	IEC (801-2, -3, -4)
International:	CE