ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
3-10
SCSI Interface
Initialize Element Status with Range (E7h)
The Initialize Element Status with Range Command allows the host to
request an inventory of a specified range of elements in the library. The
library conducts the inventory and determines whether each element
within the specified range contains a tape cartridge. The inventory will
read the bar code of each tape (unless commanded not to). If no bar
code is read, the library will use sensors to determine whether each
element contains a tape.
Inventory information is returned to the host only if requested using
the Read Element Status command.
The library does not accept any other commands from the host during
the inventory process.
The host can issue an Abort of the inventory for the library. If another
Initialize Element Status command is then issued, the inventory
process is restarted from the beginning.
If the gripper contains a tape cartridge, the inventory procedure
cannot be conducted. In this case a Transfer Full error (SK=5 ASC=80
ASCQ=01) is returned. The cartridge should be moved to an available
bin, and the command retried.
The format for this command data block is shown in Table 4.
Table 4: Initialize
Element Status with
Range Command
Bit/Byte
7
6
5
4
3
2
1
0
0
Operation Code (E7h)
1
Logical Unit Number
Reserved (00h)
Range
2
(MSB)
Starting Element Address
(LSB)
3
4
Reserved (00h)
5
Reserved (00h)
