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Unisys CTS9840 Tape Drive
StorageTek's CTS9840 offers the
speed, capacity, and access demanded by today's storage-intensive applications
and active users. The ability to attach more drives to new or
existing libraries, combined with its unrestricted connectivity and
adaptability, enables the
CTS9840 to use space efficiently while supporting unlimited growth. Continuous
and confident operation, combined with mainframe-class reliability, makes the
CTS9840 an ideal, cost-effective, Unisys automated storage solution.
Major Features
- Move or retrieve data with simultaneous read or write to each controller
transport unit
- Each cartridge holds up to 20GB uncompressed (80GB compressed)
- Migrates easily to present and emerging technologies
- Mixed media within an automated library
- Attach additional drives to new or existing libraries
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a Quote
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Performance Data |
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Tape Speed |
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Read/Write |
79
IPS (2 m/s) |
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Search/Rewind |
315
IPS (greater than 8 m/s) |
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Tape
Load and Initialize to Ready |
4 s |
|
Search Time |
8 s
(average 1st search)
11 s (average subsequent searches) |
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Maximum Rewind Time |
16 s |
|
Interfaces (per Drive) |
1
ESCON, 1 Ultra-SCSI or
2 Fibre Channel (SC optical) |
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Compression |
Enhanced LZ-1, 4:1 Ratio
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Individual compression achieved is a function of many variables,
including the data characteristics. For example, scientific data usually
compresses less than general business data. As a practical guide,
mainframe (MVS/ESCON) compression rates are typically 4:1, while client
server operating systems (UNIX/NT on SCSI or Fibre) usually achieve in
the 2:1 to 2.5:1 range. In all instances, slightly lower or
significantly higher numbers may be achieved. |
Data Buffer Size |
8 MB |
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Data
Transfer Rates |
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Head-to-Tape |
10
MB/s (uncompressed) |
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Interface (burst rate) |
100
MB/s Fibre (256 KB) |
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Maximum Block Size |
256
kb |
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Supported Features |
Tape
Alert
Emulation Modes - Native, 3490E, 3590
FCP-2 (FC Tape) |
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Operating Environment |
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Temperature |
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Operating |
59°
to 90°F (15° to 32°C) Dry Bulb |
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Storage |
50°
to 104°F (10° to 40°C) |
|
Shipping |
-40°
to 140°F (-40° to 60°C) |
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Relative Humidity (Non-condensing) |
|
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Operating |
20%
to 80% |
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Storage |
10%
to 95% |
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Shipping |
10%
to 95% |
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Wet
Bulb Maximum |
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|
Operating |
79°F
(26°C) |
|
Storage |
79°F
(26°C) |
|
Shipping |
79°F
(26°C) |
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Altitude |
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Operating |
0 to
10,000 ft (0 to 3.05 km) |
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Storage |
0 to
10,000 ft (0 to 3.05 km) |
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Shipping |
0 to
50,000 ft (0 to 15.24 km) |
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|
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Power Source |
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Input
Voltage |
100 to 240 VAC |
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Input
Frequencies |
50 to
60 Hz |
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Power
Consumption |
70 W |
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Power
Factor |
0.95
minimum |
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9840
Half-Inch Tape Cartridge and Media Specifications
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Cartridge Shell Data |
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Form
Factor |
Half-inch cartridge, 3480/3490E |
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Dimensions |
4.92
in. x 4.29 in. x 1.00 in.
(125 mm x 109 mm x 25.88 mm) |
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Weight |
9.17
oz (0.26 kg) |
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Media Data |
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Media |
Advanced Metal Particle |
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Substrate |
Polyethylene Naphthalate (PEN) |
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Coercivity |
1625+/-75 Oersteds (130 +/16.0 KA/m) |
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Number of Tracks |
288 |
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Capacity |
20 GB
uncompressed |
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Archival Life |
15 to
30 yrs |
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Durability |
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Short-length
Durability |
80,000 write/read passes minimum |
Long-length
Durability |
6,500
write/read passes minimum |
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Uncorrected Bit Error Rate (BER) |
10e 18 |
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Permanent Errors |
Zero |
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Load/Unloads |
10,000 minimum |
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Track-following Servo |
Factory pre-recorded
Caution: Do not bulk-erase cartridges. |
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Operating Environment |
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Temperature |
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Operating |
59°
to 90°F (15° to 32°C) |
Storage
(Up to four weeks) |
41°
to 90°F (5° to 32°C) |
|
Storage (Archive) |
65°
to 79°F (18° to 26°C) |
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Shipping |
-10°
to 120°F (-23° to 49°C) |
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Relative Humidity (Non-condensing) |
|
|
Operating |
20%
to 80% |
Storage
(Up to four weeks) |
5% to
80% |
Storage
(Archive) |
40%
to 60% |
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Shipping |
5% to
80% |
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Wet
Bulb Maximum |
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Operating |
79°F
(26°C) |
Storage
(Up to four weeks) |
79°F
(26°C) |
Storage
(Archive) |
79°F
(26°C) |
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Shipping |
79°F
(26°C) |
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- Extreme changes in temperature and humidity should be avoided
whenever possible.
- Optimal operational conditions are nominally 68°-F (20°-C) and 50%
RH.
- When a cartridge is received, it should be allowed to acclimatize
within the operating environment for a period of at least 24 hours.
- Whenever possible, it is recommended that the 9840 cartridge be
stored in room environment conditions of 68°-+9°-F (20°-+5°-C),
50%+20% RH.
- As with all high-capacity, high-performance media, it is
recommended that the data on a dropped or damaged cartridge be copied
to another cartridge and the dropped cartridge be retired.
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