ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
3-20
SCSI Interface
The format for Mode Select Vendor Unique Page 20h is shown in
Table 13.
Table 13: Mode Select
Data - Vendor Unique
Page 20h
PS - Parameters Savable
This bit is only used with the Mode Sense command (See Table 22
on page 3-34). This bit is reserved for Mode Select command and
should be set to zero.
DLR-Drive Load Retry
This bit is ignored. It can be set to one or zero for compatibility
with existing hosts.
AC-Auto Clean
When this bit is set to one, the automatic drive cleaning feature is
enabled. When it is set to zero, the automatic drive cleaning feature
is disabled.
Note
The normal state of automatic drive cleaning is “disabled.” For a
detailed discussion of the automatic drive cleaning feature, see
“Appendix C.”
EXB-Exabyte Emulation
When this bit is set to one the library emulates an Exabyte
EXB-120. This setting changes the behavior of the SCSI command
set. The differences in the interface when in Exabyte Emulation
mode are described in Appendix TBD. When set to zero the library
SCSI interface operates in the default manner as described in this
document.
Bit/Byte
7
6
5
4
3
2
1
0
0
PS
(0)
Reserved
(0)
Page Code
(20h)
1
Page Length
(02h)
2
Reserved
(00h)
AC
DLR
3
Reserved
(00h)
EXB