Appendix A. Library Specifications

Functional Changes for Specific Drive Emulation Selections

Selecting different AIT drive emulation modes makes the following changes to the tape drive functionality.

Emulation

System

Changes to Drive Functionality

 

 

 

0

Default (all other configurations)

Standard AIT drive operations.

 

 

 

1

RS6000 running AIX 3.2

No disconnect during Inquiry.

 

 

Fixed mode default for AIX backup and restore utilities.

 

 

AIX 3.2 and later versions can be configured for an unknown device by

 

 

using the SMIT Other SCSI Device function.

 

 

 

2

Emulate DLT 7000

Same as default, except that an AIT drive looks like a DLT 7000 drive.

 

 

 

3

SGI running IRIX

Four-byte boundary disconnects only.

 

 

Return BUSY status instead of NOT READY for media access commands

 

 

during an immediate command.

 

 

Perform READ POSITION command and return the value of 0 during

 

 

REWIND immediate.

 

 

Fixed mode default.

 

 

 

4

Emulate AIT-1 (SDX-300C)

Same as default, except that an AIT-2 drive will look like an AIT-1 drive

 

 

to function with software that does not currently have AIT-2 support.

 

 

 

10

Sun running Solaris

Variable mode default.

 

 

Data compression device file control.

 

 

 

12

Dec Alpha running Digital Unix

Variable mode default.

 

 

Signed residual.

 

 

Data compression compatibility.

 

 

 

13

HP9000 model 700

Sets Inquiry string to HP C1533A.

 

HP9000 model 800 with GSC SCSI

Variable mode default.

 

controller (HSC bus systems)

DDS2 density code support.

 

 

 

14

Sun running SunOS

Variable mode default.

 

 

Data compression device file control.

 

 

Non-buffered mode disabled.

 

 

 

16

HP9000 Model 800 with 28696A

Inquiry string set to STK 9490.

 

SCSI controller (HP-PB bus systems)

 

 

 

 

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Spectra Logic 10000 manual Functional Changes for Specific Drive Emulation Selections