Chapter 9. Read Element Status-B8H; Command Description; Table 9-1: Read Element Status Command-B8H - Spectra Logic Spectra S50 User Manual

9 Read Element Status—B8h

Command Description

The READ ELEMENT STATUS command requests that the library return the status of the
selected elements in the library. An element's status includes its element address,
element type, whether it contains media, and whether it is in an abnormal state. If the
VolTag command option is set, media bar code information is also returned. If an
element is in an abnormal state, indicated by the Except bit in returned data, the
library also supplies sense information to indicate the nature of the abnormal state.
Table 9-1 shows the CDB for the READ ELEMENT STATUS command.
Table 9-1: Read Element Status Command–B8h
Bits
Byte
7
00
01
02 (MSB)
03
04 (MSB)
05
06
07 (MSB)
08
09
10
11 0
a. These bits are ignored.
6 5 4
a
Obsolete
Starting Element Address
Reserved
0 Reserved
3 2
Operation Code (B8h)
VolTag
Number of Elements
Allocation Length
Reserved
0
37
1 0
Element Type Code
(LSB)
(LSB)
CurData DVCID
(LSB)
0 0