User's Guide

Chapter 2 Emulated Medium Changer SCSI Commands
Read Element Status (B8h)
58 Quantum DX-Series Software Interface Guide
Table 40 Read
Element Status Data
Bit/Byte 7 6 5 4 3 2 1 0
0
1
2
3
4
5
6
7
8 - X
• First Element Address Reported
Indicates element address of element with smallest element address
found to meet the command description block request.
• Number of Elements Reported
• Indicates number of elements meeting the request in the
command descriptor block
• Element status is returned if sufficient allocation length was
specified
• Byte Count of Report Available
Indicates number of bytes of element status page data available for all
elements meeting the request in the command descriptor block.
From 1 to 4 Element Status Pages can be returned.
• One page is returned for each element type with status information
• Each page contains a header and 1 or more element descriptors
• Each element descriptor reports the status for a single DX-Series
system element
(MSB)
First Element Address Reported
(LSB)
(MSB)
Number of Elements Reported
(LSB)
Reserved (00h)
(MSB)
Byte Count of Report Available
(LSB)
One or More Element Status Page(s)