United States
Q
What is a 3490E Data Tape cartridge?
A
The IBM 3490E Data Tape cartridge is an extended-capacity magnetic tape medium designed for mainframe backup and archiving. It features a 5,600-foot metal-particle tape on a robust cartridge for high-density, automated library integration and long-term data retention.
Q
What are the native and compressed storage capacities of 3490E Data Tape?
A
A 3490E Data Tape cartridge offers up to 10 GB of native capacity and achieves up to 20 GB with 2:1 hardware compression. Actual throughput depends on data characteristics and compression efficiency.
Q
What data transfer rates does the 3490E support?
A
The 3490E Data Tape delivers sustained native transfer rates of up to 3 MB/s and up to 6 MB/s with 2:1 compression, minimizing backup windows and optimizing tape library operations.
Q
What are the physical dimensions of a 3490E Data Tape cartridge?
A
A 3490E cartridge measures approximately 4.25 × 2.75 × 1 inches (108 × 70 × 25 mm) and weighs around 300 g, ensuring compatibility with IBM 3490E drives and automated tape libraries.
Q
Is the 3490E Data Tape backward compatible with earlier 3490 drives?
A
Yes. IBM 3490E tape drives support reading and writing of legacy 3490 Data Tape cartridges, enabling seamless migration and phased upgrades within existing mainframe tape infrastructures.
Q
What type of magnetic media does the 3490E Data Tape use?
A
The 3490E Data Tape uses a high-coercivity metal-particle (MP) magnetic coating on a polyester substrate, providing superior durability, high signal-to-noise ratio and reliable long-term data retention.
Q
What is the typical shelf life of a 3490E Data Tape cartridge?
A
When stored under IBM-recommended conditions, a 3490E Data Tape cartridge maintains data integrity for up to 30 years, making it ideal for long-term archives and compliance requirements.
Q
What environmental conditions are recommended for storing 3490E tapes?
A
Store 3490E cartridges at 10–50 °C (50–122 °F) and 20–80% relative humidity. Avoid exposure to strong magnetic fields, direct sunlight and rapid temperature or humidity fluctuations.
Q
How many load/unload cycles can a 3490E Data Tape endure?
A
A 3490E Data Tape supports up to 10,000 load/unload cycles and over 100,000 tape passes, ensuring reliable operation for frequent backup and restore tasks.
Q
Can 3490E Data Tapes be reused and reformatted?
A
Yes. 3490E cartridges are fully reusable and can be reformatted or overwritten using standard IBM 3490E drive initialization commands without degrading tape performance.
Q
What cleaning procedures are required for 3490E tape drives?
A
Use an IBM-approved cleaning cartridge every 50 tape mounts or when the drive issues a cleaning alert. Follow IBM’s drive cleaning guidelines to preserve read/write head integrity and performance.
Q
How can I optimize data integrity on 3490E Data Tapes?
A
Implement hardware compression judiciously, schedule regular drive cleanings, and run post-backup verification routines. Adhere to recommended handling and storage procedures for maximum data reliability.
Q
What error rate can I expect with 3490E Data Tapes?
A
The 3490E Data Tape achieves an uncorrected bit error rate below 1×10⁻¹⁴, thanks to advanced ECC algorithms and precise head-to-tape alignment in IBM drives.
Q
Where can I purchase certified 3490E Data Tape cartridges?
A
Purchase genuine 3490E Data Tapes from authorized IBM resellers, certified media distributors or IBM’s official e-commerce channels to ensure warranty coverage and media quality.
Q
What are common failure modes of 3490E Data Tapes?
A
Typical failure modes include tape wear, head contamination, binder degradation and alignment drift. Adhering to cleaning schedules and environmental guidelines minimizes these risks.
Q
How do I migrate data from 3490E tapes to modern formats?
A
Use compatible tape migration software and drives to read 3490E cartridges, then transfer data to modern formats such as LTO or IBM 3592. Validate each migration step with checksum verification.
Q
Why is 3490E Data Tape ideal for mainframe environments?
A
The 3490E Data Tape combines high capacity, robust metal-particle media, backward compatibility with legacy drives and automated library support, making it a dependable choice for enterprise mainframe backup and archiving.
