Quantum
SDLT 320
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The
SDLT 320: Superior Capacity and Performance
The
ideal choice for high-end and automated environments,
the SDLT 320 is designed for high duty-cycle
with a rating of 250,000 hours MTBF at a 100%
duty cycle. It can backup 115 GB per hour
(in compressed mode), and can store 320 GB
on a single cartridge (compressed) offering
the lowest cost per GB and the highest storage
density around. The SDLT 320 is backward read
compatible with DLTtape IV media and uses
the same Super DLTtape I cartridges as the
SDLT 220 allowing seamless migration to Super
DLTtape and preservation of your data storage
investments. It is also fully compatible with
the leading server brands, operating systems
and backup software.
Through
groundbreaking innovations, Quantum Super
DLTtape drives combine the best of proven
optical and magnetic technologies to offer
users remarkable improvements in capacity
and performance. A laser-guided optical servo
brings the capability of optical tracking
technology, while an advanced Partial Response
Maximum Likelihood (PRML) read channel leverages
proven disk drive technology to bring performance
and data integrity to new heights.
With
2 million drives and more than 80 million
DLTtape and over 1 million Super DLTtape media
cartridges sold, DLTtape is the technology
platform that more companies trust to protect
their business critical information assets
than any other.
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Overview
The SDLT 320 represents
a major advance in capacity and performance. It
offers the lowest cost per GB of any other storage
solution on the market and, as part of the DLTtape
product family, enjoys the highest industry acceptance.
The SDLT 320 is backward read compatible with DLTtape
IV media and uses the same Super DLTtape I cartridges
as the SDLT 220, preserving your data storage investments.
Specifically designed for the high duty-cycle requirements
of high-end and automated environments, the SDLT
320 is the ultimate solution for today’s demanding
backup needs.
Benefits
- Native capacity
of 160 GB at 16 MB/s transfer rate
- 2:1 Compression
allows 320 GB at 32 MB/s
- 250,000 hours
MTBF at 100% duty cycle
- Fully backward
read compatible with DLTtape IV cartridges and
uses Super DLTtape I media
- Advanced Metal
Particle Media embeds the optical servo tracks
onto the reverse side of the tape freeing up 100%
of tape's magnetic side for recording data
- High efficiency
PRML Channel creates more tracks on the tape
- Laser Guided Magnetic
Recording combines best of optical and magnetic
technologies
- Pivoting Optical
Servo increases high duty cycle reliability
- Magneto-Resistive
Cluster Heads for the highest data density
- Increased media
capacity provides easier use and lower cost of
ownership
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Performance |
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| Native
sustained transfer rate |
16
MB/s |
| 2:1
compressed transfer rate |
32
MB/s |
| Burst
transfer rate SCSI bus |
80
MB/s max |
| Native
formatted capacity |
160
GB |
| 2:1
compressed capacity |
320
GB |
| Cartridge
load time to BOT, formatted tape |
12
sec |
| to
BOT, unformatted tape |
40
sec |
| Average
file access time |
70
sec |
| Interfaces
available |
LVD,
Ultra 2 SCSI, HVD, Ultra SCSI |
Tape
format |
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| Recording
format |
448
track serial serpentine |
| Recording
density |
193
k bits / inch |
| Track
density |
1058
tpi |
| Encoding
method |
Partial
Response Maximum Likelihood (PRML) |
| Data
compression |
DLZ |
Reliability |
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| MTBF |
250,000
hours at 100% duty cycle |
| Media
durability |
1,000,000
passes / 17,850 uses |
| Uncorrected
error rate |
1
x 1017 bits read |
| Undetected
error rate |
1
x 1027 bits read |
| Warranty |
3
years |
Physical |
tabletop |
embedded |
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| Width |
6.9" |
175.26
mm |
5.74" |
145.79
mm |
| Height |
6.46" |
164.08
mm |
3.24" |
82.29
mm |
| Depth |
12.8" |
325.12
mm |
8.37" |
212.59
mm |
| Weight
- varies by configuration |
13
lb 13 oz |
6.27
kg |
5 lb 4 oz |
2.38
kg |
Environmental
limits, operating |
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| Temperature |
50°
to 104° F / 10° to 40° C |
| Non-condensing
humidity |
20%
to 80% |
| Altitude |
-500'
to +30,000' max |
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Environmental
limits, non-operating |
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| Temperature |
-40°
to 151° F / -40° to 66° C |
| Non-condensing
humidity |
10%
to 95% |
Power |
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| Voltage |
+5V,
+12V |
| Power
consumption |
27
Watts (average read / write operation) |
Media
compatibility |
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| Super
DLTtape I |
160
or 110 GB native capacity |
| DLTtape
IV - read only in SDLT 220 |
20,
35 or 40 GB native capacity |
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Tape
life |
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| Archive
storage - with
< 10% loss in demagnetization at 20°
C and 40% non-condensing humidity |
>
30 years |
| Durability
- average in typical office / computing
environment |
1,000,000
head passes |
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