User's Guide

Chapter 2 Emulated Medium Changer SCSI Commands

Request Volume Element Address (B5h)

86 Quantum DX-Series Software Interface Guide

• Element Address

This field indicates the address of the element being reported by that

element descriptor.

• Except

• When the element is in a normal state, it is set to zero

• When the element is in an abnormal state, it is set to 1

• Information on the abnormal state is available in the Additional

Sense Code and Additional Sense Code Qualifier fields

•Full

•The Full field is set to 1 whenever the element contains a tape

cartridge

• It is set to 0 otherwise

• Additional Sense Code and Additional Sense Code Qualifier

These fields are only valid if the Exception field is set to 1.

• SValid, Invert, and Source Storage Element Address

Source Valid, Source Storage Element Address field and the

Invert bit information value of 0 indicates these fields are not valid.

• Primary Volume Tag Information

If the Volume Tag information was requested in the command block,

the Primary Volume Tag Information field is included in the element

descriptor. This field contains the information read from the bar code

affixed to each tape cartridge; its format is shown in

table 57.

• Volume Identification Field

This is a left-justified sequence of ASCII characters that represents the

bar code scanned from the cartridge followed by 20h (blanks) (see

table 58).

48 - 51

Reserved (00000000h)

Vendor Unique (0000h)

Bit/Byte76543210