Using the Tape Drive, Setting the Write-Protect Switch

Chapter 3. Using the Tape Drive

This section provides information on using the tape drive features. It explains the procedures for loading and unloading tape cartridges and setting the write-protect switch.

Loading and Unloading Tape Cartridges

The front panel of the tape drive contains the cartridge opening and an activity light that indicates drive activity. When the activity light is OFF, the drive is not active.

Your tape drive has a ¯ip-up door that covers the cartridge opening when you do not have a tape cartridge in the drive. Once you insert a cartridge, the tape drive holds it in place using a positive locking mechanism.

Note: Do not remove the tape cartridge during drive operation. Complete any tape operation and wait until the activity light is OFF before removing the cartridge.

To load a cartridge, insert it with the metal base plate down and the tape access door facing the drive.

To unload a cartridge, wait until the drive activity light is OFF and then pull the cartridge straight out.

Setting the Write-Protect Switch

Tape drive cartridges feature a write-protect switch located in the upper, left corner of the cartridge. You can set the switch to keep data from being written on the tape. Use this switch when you want to ensure that important data on the tape is not overwritten.

To return a cartridge to the unprotected write state, push the switch toward the end of the cartridge or unlocked position.

Reviewing Performance Considerations

The tape drive is ideally suited to streaming operations compared to multiple-start-and-stop tape movement. Frequent start-and-stop operations are often the result of data underruns. Start-and-stop operation can also increase the stress on both the drive and the media.

If you need to improve the performance of the tape drive, consider one or more of the following:

vReduce the number of other applications that might be running simultaneously with the backup application.

vFor EIDE tape drives, consider moving the D: drive to the primary IDE cable if it is on the secondary IDE cable.

4690 specifications

The IBM 4690 is a renowned point-of-sale (POS) system that has been pivotal in the retail and hospitality industries since its introduction in the late 1980s. Notably associated with IBM’s family of retail hardware and software solutions, the 4690 has transformed the modern retail environment, providing a robust platform for transaction processing and inventory management.

One of the main features of the IBM 4690 system is its powerful software architecture. Designed to efficiently handle high transaction volumes, it integrates seamlessly with various peripheral devices such as barcode scanners, receipt printers, and payment terminals. The system's user-friendly interface allows staff to process sales quickly and efficiently, enhancing the overall customer experience.

In terms of technology, the IBM 4690 operates on a proprietary operating system that supports a variety of programming languages, allowing retailers to customize applications to meet their specific needs. This flexibility not only streamlines operations but also enables retailers to implement specialized services such as loyalty programs and promotions. The hardware is designed for durability and reliability, essential in high-traffic retail environments.

Another significant characteristic of the IBM 4690 is its robust reporting capabilities. The system provides comprehensive sales reports, inventory analyses, and customer insights, all of which are essential for strategic decision-making. This analytical power helps businesses identify trends, forecast demand, and optimize stock levels, ultimately leading to improved profitability.

Furthermore, the IBM 4690 is known for its strong security features. By utilizing advanced encryption technologies and compliance with industry standards, the system helps protect sensitive customer data and payment information, ensuring a safe transaction environment.

The longevity and adaptability of the IBM 4690 system underscore its value in the retail sector. Even with newer technologies emerging, many businesses continue to rely on the robust functionality and proven performance of the 4690. With ongoing support and upgrades, the system remains a reliable choice for retailers looking to enhance their operational efficiency while delivering excellent customer service.

In summary, the IBM 4690 stands out due to its feature-rich software, durable hardware, robust reporting and analytics, and stringent security measures. These characteristics make it an indispensable tool for retailers aiming to thrive in an ever-evolving marketplace.