User's Guide

Chapter 2 Media Changer Commands
Read Buffer Command (3Ch)
Quantum SuperLoader 3 Software Interface Guide 99
Figure 57 Echo Buffer
Descriptor
Table 46 Echo Buffer
Descriptor
Bit
Byte76543210
0
Reserved EBOS
1
Reserved
2
Reserved Buffer Capacity
3
Buffer Capacity
Field Name Description
EBOS
Echo Buffer Overwritten Supported. Set to 1 to
indicate the drive will return the
ECHO BUFFER
OVERWRITTEN
additional sense code if the data
being read from the
Echo Buffer is not the data
previously written by the same initiator.
Buffer Capacity Returns 252 indicating the size of the
Echo Buffer in
bytes.