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Sunstar Company. Inc. is proud to be an
Overland Data, Inc. partner!
Tape Drives
3480 Tape Drives
3490e Tape Drives
3490 Tape Drive
L490E 36 / 18 track
autoloader
The L490E:
18-Track for Interchange, 36-Track for Backup, All in One Drive
In the past, having compatibility with all IBM formats required buying
two drives: one for reading and writing 18-track tapes, and another
for reading and writing 36-track tapes. This created an extra cost
burden, not only when the drives were purchased, but also during their
operational life, because both of them had to be maintained.
That's all changed with the introduction of the L490E. For the first
time, one drive reads and writes all three industry-standard half-inch
cartridge formats: IBM 18-track 3480/3490, and IBM 36-track 3490E. The
L490E reads and writes both native and compressed modes, featuring IBM
IDRC-compatible data compression.
The 18-track tapes written by the L490E can be read by any IBM
3480/3490-compatible 18-track drive. This capability comes at no
additional cost.
Advancing the State of the Art
The L490E MiniLibrary incorporate many significant improvements in
half-inch tape drive design. Both drives feature the very latest
technology in read/write electronics, tape guidance, cartridge
loading, serviceability and reliability.
L490E's Exclusive 18-track Write with a 36-Track Head
The L490E only needs one tape head to write both 18-track and 36-track
tapes. To ensure the highest possible data integrity when writing
18-track data with the tape head's narrower tracks, the drive uses an
AC erase bar located in front of the tape head. Old data on a tape is
magnetically erased by the bar before new data is written. Extraneous
signal is eliminated, improving the signal-to-noise ratio when the
data is written and later read by any IBM 3480/3490-compatible drive.
Innovative Tape Path Protects Tape and Data
Gentle, Reliable Tape Guidance System
The L490E's tape guidance system minimizes tape wear and offers
improved reliability by employing hydrodynamic tape chutes in the tape
path.
As tape is accelerated to full speed, it draws in air underneath it,
lifting it from the tape chute surface and allowing it to stream
freely.
Nothing touches the moving tape but the edge guides, ensuring precise
alignment for accurate reading and writing. Tape wear is substantially
reduced, and long term data integrity is preserved.
Because the L490E use hydrodynamic tape chutes, no air bearings are
required. This eliminates the need for one of the most failure-prone
tape drive components, the air compressor.
The surface of the tape chutes is made of an advanced ceramic-blend
material. This material is very hard and low-friction, providing
superior
protection from tape wear over time. This has been proven by extensive
tape life testing.
In fact, the L490E's hydrodynamic tape chutes have been proven to
protect tapes well beyond ANSI requirements. The L490E offer this
superior tape handling without requiring the complex arrangement of
parts used by other designs.
Advanced Tape Loading System
10-Cartridge Autoloader is Already Built-In
The L490E's 10-cartridge automatic cartridge loader (ACL) is
integrated inside the drive enclosure, not an external add-on. Instead
of using a cartridge stacker that moves a magazine, the L490 and L490E
use a robotic loader to select, load and replace cartridges in
stationary slots.
This design offers two important benefits over external stacker
loaders.
First, since the auto-loading system is completely integrated with the
drive, the total assembly fits into a 24 inch (61 cm) deep cabinet. No
extra space is required outside the cabinet for a moving magazine.
Second, the robotic ACL sets a new standard for loading system
reliability. Its design is a model of simplicity and durability. All
movement of the loader is accomplished with two sturdy lead screws.
Radial-Arm Reduces Tape Threading to a Simple Operation
While other cartridge drives accomplish tape threading with complex
mechanisms, the L490E thread tape in one sweeping motion, with only a
radial swinging arm and one small motor. This elegant design is more
dependable than other tape threading systems.
Built-In Cleaning Cartridge
The L490E feature a built-in cleaning cartridge hidden away in an 11th
slot. No more trying to find the mis-placed cleaning cartridge. It’s
always available. Just initiate a cleaning cycle from the front panel
controls and the drive will automatically retrieve the cleaning
cartridge,
clean the heads and return the cartridge to it’s hidden slot.
Designed for Ease of Use and Integration
The L490E were designed from the beginning to be user-friendly and
easy to integrate into the workplace.
Drive Status is Instantly Available at a Glance
The L490E's clear, bright 16-character LCD displays current drive
status at all times, showing which cartridge is loaded and its format,
when the drive is unloaded, and when the drive door is open.
See-Through, Locking Drive Door
The drive door is made of grey-tinted polycarbonate, letting the user
see the cartridges inside. As an added convenience, the drive door
features a locking latch should the user wish to restrict access to
the cartridges.
Easy-To-Use Control Panel
Three large, clearly-marked buttons handle all tape functions. Two LED
indicator lights and the 16- character LCD display guide the user
through all operations. The LED's are bright enough to be read from
across a room for quick status verification.
Quiet Operation
Because the L490E don't require an air compressor, the drives runs
very quietly, making them ideally suited for the office as well as the
computer room.
Three Configurations to Choose From
The L490E comes in either a floor-standing tower, a horizontal
desktop, or a standard 19-inch rackmount configuration, allowing them
to be used in all types of work environments and applications.
Low Power
The L490E is economical to operate, consuming only 150 Watts. It's
autoranging power supply adjusts to all standard line voltages,
allowing them to be operated anywhere in the world without
modification.
Fast Performance on Numerous Computing Platforms
The L490E comes with a single-ended Fast SCSI-3 or differential
Fast SCSI-3 interface. With Fast SCSI-3, the L490E burst data at up to
10 MB per second. The SCSI interface, coupled with the L490E's
standard 4 MB buffer, offers the user excellent data transfer
performance in a variety of applications.
Compatible with Popular Hardware and Software
The L490E connect to numerous hardware platforms. Both drives are also
supported by many popular backup and Hierarchical Storage Management (HSM)
software packages. Contact Overland Data for the most current
compatibility listing.
No Drive Has Ever Been Easier to Service
All of the L490E's parts and assemblies are easy to access,
service, and replace. In most cases, a simple screwdriver is all
that's
needed to perform service.
The side access panel can be detached from the drive by removing just
two screws. Two thumb screws then release the three hinged main
circuit boards, which swing out of the drive for easy access to both
sides of each board. Rotating all three boards forward exposes the
cooling fan and power supply. Remove three more screws, and a
protective plate slides out to reveal the deckplate and tape path,
including the tape guides, tape head and take-up reel.
A New Standard for Reliability
The L490E is designed to deliver years of trouble-free service at an
unrestricted duty cycle. Modern electro-mechanical design is used
throughout. The tape path and loading system feature simplified
designs, and all mechanical assemblies boast significantly reduced
parts counts. In addition, loading and transport power electronics are
integrated into one board, as are read and write electronics, reducing
the number of interconnects required.
All of these measures contribute to making the L490 and L490E two of
the most reliable IBM-compatible half-inch cartridge drives available.. |
TapeXpress L490e
Meets
the demands of shrinking backup windows High-speed data retrieval Network backup
of critical data Mainframe to UNIX and network interchange Protects critical
corporate data applications
A MiniLibrary Designed For Your Needs
Using IBM format-compatible half-inch cartridge tape in your data center has
never been easier or more cost-effective. The L490E offers 18-track for
interchange, 36-track for backup, all in one drive.
Read And Write Both 18- And 36-Track With One
Drive
For the first time, one drive reads and writes all three industry-standard
half-inch cartridge formats: IBM 18-track 3480/3490, and IBM 36-track 3490E. The
L490E reads and writes both native and compressed modes, featuring IBM IDRC-compatible
data compression.
Full Connectivity With Major Backup And HSM
Packages
Whatever backup packages you use, it's easy to integrate the L490E. Broad
native driver support is further enhanced by 8mm and DLT emulation.
High-Performance For The Shrinking Backup
Window
With 3 MB/second standard on the L490E, you can back up your data at a rate
of 11 GB/hour. Add Fast/Wide SCSI and your burst data rate explodes to 20
MB/second.
Reliable, Field-Proven Tape Path Design And
Components
Trouble-free operation is a proven hallmark of the entire L490E tape path
and critical mechanical components and assemblies.
Advanced Tape Loading System
The L490E's 10 cartridge Automatic Cartridge Loader (ACL) is integrated
inside the drive enclosure, not an external add-on. Instead of using a cartridge
stacker that moves a magazine, the L490E uses a robotic loader to select, load
and replace cartridges in stationary slots. The total assembly fits into a 24
inch (61 cm) deep cabinet. No extra space is required outside the cabinet for a
moving magazine. And, the robotic ACL sets a new standard for loading system
reliability. Its design is a model of simplicity and durability.
Advanced Design
The L490E incorporates many significant improvements in half-inch tape drive
design and features the latest technology in read/write electronics, tape
guidance, cartridge loading, serviceability and reliability.
Protecting Your Storage Investment
Overland's more than 15 years of experience in providing business-critical
tape storage solutions provides reliability and service you can depend on.
Manufacturing interchange, backup and archival storage solutions, Overland meets
the needs of IT professionals in industries worldwide.
Specifications
Drive and Media |
Drive |
IBM-compatible 3490E |
MiniLibrary cartridge loader |
Integrated robotic loading system with 10
cartridge stationary magazine |
Cartridge access |
Sequential or random |
Tape type |
.5 inch chromium dioxide |
Tape length |
540/1,100 ft. (164.6/335.3 meters) |
Media type |
IBM-compatible Cartridge System Tape
IBM-compatible Enhanced Capacity Cartridge System Tape |
| Magazine size |
10 cartridge |
System Performance |
Tape speed |
2 meters/second |
Transfer rate, sustained |
3 MB/second uncompressed |
Transfer rate, burst |
20 MB/second |
Buffer |
4 MB standard |
Nominal rewind time |
5 seconds (45 maximum in 18-track mode) |
Nominal load/unload time |
15 seconds maximum |
Data Organization |
Recording format |
36-track ANSI extended magnetic tape
format, parallel |
Backward compatibility |
Read/write 18-track |
Compression mode |
IBM IDRC-compatible |
Recording density |
37,871 BPI |
Tape path |
Hydrodynamic tape chutes |
Read/write head |
36-track thin film write/MR type |
Native capacity |
800 MB/cartridge
8 GB on 10 cartridges |
| Capacity with compression |
2.4 GB/cartridge
24 GB on 10 cartridges |
| Block length |
64 KB maximum |
System Reliability and Data Integrity |
MTBF |
35,000 hours continuous operation |
Head Life (R/W head) |
5,000 tape motion hours |
Design life |
5 years |
Mean cycles between failures |
150,000 |
Error correction |
Reed Solomon ECC |
Hard Error Rate |
1 x 1013 bytes read |
Undetected error rate |
1 x 1017 bytes read |
Warranty |
2 year RTF standard |
Interface |
Supported Interfaces |
Fast SCSI-2, S/E, asynchronous/synchronous |
|
Fast SCSI-2, Diff.,
asynchronous/synchronous |
|
Fast/Wide SCSI-2, Diff. |
Physical Dimensions |
TOWER |
RACKMOUNT |
DESKTOP |
Height |
19.12"; - 48.56cm |
6.97"; - 17.7cm |
6.97" - 17.7cm |
Width |
6.97" - 17.7cm |
17" - 43.18cm |
18.1" - 45.97cm |
Length |
24.1" - 61.21cm |
24.05" - 61.1cm |
24.05" - 61.1cm |
Weight |
65 lb - 29.5 kg |
60 lb - 27.2 kg |
60 lb - 27.2 kg |
Power Consumption (assumes units
are fully configured) |
| Voltage |
115/240 VAC
Auto-Switching |
| Line Frequency |
50/60 Hertz |
| Amperage |
2.8/1.7 A |
| Wattage |
322/408 |
BTUs/Hr. |
1099/1392 |
T490EW - Fast/Wide Desktop SCSI-SE 103427-001
T490EW - Fast/Wide Desktop SCSI-Diff 103249-001
L490EW - Fast/Wide Tower SCSI-SE 103428-001
L490EW - Fast/Wide Tower SCSI-Diff 103235-001
L490EW - Fast/Wide Rackmount SCSI-SE 103429-001
L490EW - Fast/Wide Rackmount SCSI-Diff 103236-001
L490EW - Fast/Wide Desktop SCSI-SE 103430-001
L490EW - Fast/Wide Desktop SCSI-Diff 103237-001
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