Element Status Data; Figure 64 Element Status Data Header - Quantum SuperLoader DLT User Manual

Chapter 3 Media Changer Commands
Read Element Status Command (B8h)
Field Name
DVCID
Allocation Length
Element Status
3
Data
Figure 64 Element
Status Data Header
Bit
Byte 7
0-1
(MSB)
2-3
4
128
Description
Must be set to 0. Reporting of device identifiers is not supported.
Specifies the number of bytes to be returned. If it is not sufficient to
transfer all the requested element descriptors, the SuperLoader will only
transfer those descriptors that can be completely transferred and this
shall not be considered an error.
The data returned by the READ ELEMENT STATUS command is
defined in figure 64
Data Transfer Element Descriptor
consists of an eight-byte header, followed by zero or more element
status pages.
6 5
First Element Address Reported
Number Of Elements Available
Quantum ATL SuperLoader Software Interface Guide
and Element Status Page
on page 137. Element status data
4 3
Reserved
on page 130 through
2 1 0
(LSB)