Compatibility with the Floppy Drive

Because the tape drive attaches to either a SCSI or IDE cable instead of the ¯oppy ribbon cable and does not use DMA channel 2, there is no contention with the ¯oppy drive.

Installation Flexibility

The tape drives install in either a 5.25-inch or 3.5-inch bay inside the Store Controller.

Note: Because the TR-4 EIDE tape drive uses EIDE, it works with systems that do not have a SCSI card.

Reliability

The Mean Time Between Failures (MTBF) is an impressive 200,000 hours. Reliability should be improved from previous tape drives because the ECC can recover up to 6 bad segments per block instead of the 3 bad segments per block.

Support

The following table shows the systems that support the TR-4 tape drive.

Description

Machine Type

PC 300

6571*, 6573, 6581*, 6583, 6577, 6587, 6589

 

 

PC 700

6875, 6877, 6885, 6887

Notes:

1.The systems marked with an asterisk (*) cannot support the SCSI tape drive because they have no PCI slot.

2.For the SCSI tape drives, a SCSI host adapter is required if one is not already in the system.

The operating system does not support the TR-4 EIDE tape drive on IBM PS/2 (Microchannel) systems or IBM servers. However, the TR-4 SCSI tape drive is supported on the following IBM servers:

vPC Servers 310

vPC Servers 315

vPC Servers 325

vPC Servers 330

There may be additional desktop systems that support the tape drive that were not available at the time of this publication. In order for the tape drive to be supported on a system unit, all of the following conditions must be met:

vThe tape drive is supported by the PC Company on a particular system. Contact the PC Company to determine if a particular system supports the TR-4 tape drive.

vThe system is supported by the operating system. To view a list of systems supported by the operating system, see the Internet web address: http://www.raleigh.ibm.com/rds/storesys/4690/contmatx.htm.

The IBM 4690 Store System software does not support the formatting of a tape cartridge. The tapes must be preformatted.

2TR-4 Tape Drive User's Guide

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IBM 4690 manual Compatibility with the Floppy Drive, Description Machine Type

4690 specifications

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