User's Guide

Chapter 2 Emulated Medium Changer SCSI Commands
Read Element Status (B8h)
64 Quantum DX-Series Software Interface Guide
These fields are only valid if the Exception field is set to 1. SValid
•The SValid bit is set to 1 if the information in the Source Storage
Element Address field is valid
• If information is unknown (due to a door open or power on
condition), the SValid bit is set to 0
•Invert
The Invert field is not supported and is set to 0.
• Source Storage Element Address
Source Storage Element Address represents the address of the last
storage element that held the cartridge. The SValid field indicates
whether this information is valid.
• Primary Volume Tag Information
If the Volume Tag information is requested in the command block
(VolTag=1), then the Primary Volume Tag Information field is
included in the element descriptor. For format, see
table 43.
The layout of an element descriptor for an element of the import /export
element type is illustrated in
table 45.
Table 45 Import/Export
Element Descriptor
Bit/Byte 7 6 5 4 3 2 1 0
0
(MSB)
Element Address
1
(LSB)
2
Reserved (0)
Import
Enable
Export
Enable
Access Except
Import
Export
Full
3
Reserved (00h)
4
Additional Sense Code
5
Additional Sense Code Qualifier
6
Reserved (000000h)
7
8