TapeXpress T490e

Reliable, field-proven tape path design and components High appeal to library system integrators Percentage-of-tape-remaining display High-performance, 3 MB/second data transfer standard Fast/Wide SCSI option Flash PROM's, easy firmware upgrades

One Drive Serves A Full Range Of Half-Inch Tape Drive Needs
Now full 18/36-track read and write performance is available in a single tape drive for lower performance and mid-range systems. Whether you use 3480/3490 18-track for interchange, or 3490E 36-track for high-performance backup, the compact versatile T490E is ideal for PCs or workstations in office environments.

Designed For High-Performance Data Transfer
The T490E drive offers a sustained data transfer rate of 3 MB/second, using the standard Fast SCSI-2 interface configuration. The drive's outstanding performance characteristics, coupled with its exclusive 18-track write capabilities, enable the T490E to uniquely and powerfully serve the needs of tape library integrators.

Interchange Needs Are Also Met
The T490E drive allows 18-track users to capitalize on their existing interchange investment, while also enjoying the benefits of 36-track performance and capacity.

Connectivity With major Backup And HSM Packages
The T490E drive easily connects to numerous hardware platforms, and is supported by many popular backup and HSM software packages.

Built Upon Success
Built upon Overland's very successful TapeXpress products, the T490E tape drive offers 3 MB/second performance (20 MB/second burst max.) in a proven product design. The T490E is ideally suited for both single cartridge interchange and for times when fast backup of critical files is imperative. Its compact design makes it equally useful in a desktop application or stored unobtrusively in a busy data center. Taking advantage of system connectivity already designed into the TapeXpress product line, the T490E drive easily connects to numerous hardware platforms, and is supported by many popular backup and HSM software packages.

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.

Drive Performance
Tape Speed	2 meters/second
Transfer rate, sustained	3 MB/second, uncompressed
Transfer rate, burst (Fast SCSI)	10 MB/second
Transfer rate, burst (Fast/Wide SCSI)	20 MB/second
Buffer	4 MB standard
Nominal rewind time	5 seconds (60 max., 18-track)
Nominal load/unload time	15 seconds max.
Error correction	Reed Solomon ECC
Hard error rate	1 x 10¹³ bytes read
Undetected error rate	1 x 10¹⁷ bytes read (calc.)
Drive Reliability
MTBF	35,000 hours
Head life (R/W head)	5,000 tape motion hours
Design life	5 years
Mean cycle between failures	150,000
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
Capacity with compression	2.4 GB/cartridge (IBM IDRC at 3:1)
Block length	64 KB max.
Recording Medium
Tape	3480/3490/3490E-format compatible half-inch cartridge
Length	540/1,100 ft. (164.6/335.3 meters)
Interface
Supported Interfaces	Fast SCSI-2, single-ended, asynchronous/synchronous
	Fast SCSI-2, differential, asynchronous/synchronous
	Fast/Wide SCSI-2, differential
Power Requirements
Voltage	85 - 259 VAC, autoranging
Line frequency	47 - 63 Hz
Power consumption	150 watts nominal
Regulatory Safety
	FCC, UL, CSA, CE and VCCI
Physical Dimensions
Height	10.2 in (25.9 cm)
Width	8.75 in (22.2 cm)
Length	17.0 in (43.2 cm)
Weight	34.8 lb (15.8 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