User's Guide

Chapter 2 Emulated Medium Changer SCSI Commands
Read Element Status (B8h)
Quantum DX-Series Software Interface Guide 57
Figure 1 Read
Element Status Data
General Structure
Read Element Status Data
Read Element Status Data Header
Element Status Data Page (first or only)
Element Status Data Page Header
Element Descriptor (first or only)
Other Element Descriptors (if any)
.
.
.
.
.
.
Other Status Data Pages (if any)
A single Read Element Status Data Header is returned along with one
or more element status pages. The Read Element Status Data Header
indicates the address of the first element reported, number of elements
reported, and the report size for all requested data.
The report size is given in bytes.
• The size is the total number of bytes that would be contained in the
report for all requested data minus 7
The Read Element Status command can be given with an Allocation
Length of 8 to determine how much space must be allocated to transfer
all status data requested by the command.
The format for the Read Element Status Data is shown in table 40.