User manual QUANTUM TRAVAN 40 10-23-2002

[. . . ] STT2401A, STT3401A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Travan 40 tape drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . © 2002 Seagate Removable Storage Solutions LLC. All rights reserved Part Number 100249522 Seagate and the Seagate logo are registered trademarks of Seagate Technology LLC. [. . . ] It will always be set to 0, indicating the drive supports one data partition consistent with QIC-157D, table 5-44. Additional Partitions Defined field specifies the number of additional partitions to be defined for a volume when SCP or IDP is set to 1. This field must be set to 0, and is not changeable. FDP: Fixed Data Partition bit may be changed by a MODE SELECT command only when the drive is positioned to BOT. When set to 0, the drive considers the entire media as a single partition. When FDP is set to 1 the drive is in dual partition mode. FDP does not cause the selected partition to change. CAP in page 10h is used for that function. The FDP bit default value is 1 and it is not changeable in STT3401A mode. Select Data Partition (SDP), Initiator-Defined Partitions (IDP), and Partitions Size Unit of Measure (PSUM) fields shall be set to 0, indicating that the STT3401A drive assigns partitions base on its pre-defined definition of the data and directory partitions. These values are not changeable by the Host. 1 0 0 0 0 0 0 0 Hex 11 06 00 00 XX 03 00 00 Page 56 Seagate Travan 40 Product Manual ATAPI Interface Chapter 5 Media Format Recognition field is intended for use by the MODE SENSE command, in which it is set to 03h, indicating that the drive is capable of recognizing the format and partition of the tape automatically. This field is ignored in MODE SELECT commands. Page Code 1Ch is used for TapeAlert Diagnostics. Page Code 1Ch--TapeAlert Diagnostics Data Bits Byte 7 6 5 4 3 2 1 0 0 0 Page Code 1 Page Length 2 Perf Reserved Dexcpt Test Resrvd 3 Reserved MRIE 4 Interval Timer 5 6 7 8 Report Count / Test Flag Number 9 10 11 0 LgErr Hex 1C 0A XX XX XX XX The Page Code is set to 1Ch. The purpose of the TapeAlert Mode page is similar to the SMART disc diagnostic interface. The TapeAlert Mode page will return to the default settings when a bus reset is received. The following fields are in the Mode page: Dexcpt (Default set to 1): When this bit is set to 0 the reporting method indicated by the MRIE field is used. When this bit is set to 1 this indicates that the target shall disable all information exception operations, ignoring the MRIE field (in this mode the software must poll the TapeAlert Log page). Thus to enable "Check Condition" mode, set the bit to 0. LogErr (Default set to 0): When this bit is set to 0, this indicates that the logging of informational exception conditions within a target is vendor specific. When this bit is set to 1, the target shall log informational exception conditions. Perf (Default set to 0): When this bit is set to 0, this indicates that informational exception operations that can cause delays are acceptable. [. . . ] This is a method of performing device I/O, where the Host processor must explicitly read or write two bytes at a time via the taskfile Data register. See PIO MODE There are five data rates possible with this technique: 0 through 4 Guard information recorded after the data block. Quarter Inch Cartridge Drive Standards, Inc. A QIC specification for ATAPI and SCSI streaming tape devices PARAMETER PCB PCISET PERIPHERAL QIC PHANTOM SLAVE PIO PIO MODE POSTAMBLE QIC QIC157 Seagate Travan 40 Product Manual Page 127 Appendix A Glossary RAM Stands for Random Access Memory. [. . . ]