User Guide

3-8 Preliminary Draft Ampex 1308904-X4
Model No.
Running Head
ACL Configuration ACL Application Programmer’s Guide
3.3.7 Power Up and Hard Reset
When the ACL is powered on or reset from the SCSI bus (hard reset or Bus Device Reset
message), it performs a boot sequence. During the boot sequence, the ACL loads the operating
program, initializes its subsystems, performs internal self tests, resets its mode parameters to
their default values, and clears its internal logs.
The ACL does not accept any SCSI commands other than Inquiry or Test Unit Ready until
it is ready for operation (see “Unit Ready Status” on page 3-10). When the boot sequence
completes successfully, Unit Attention is sent to all initiators to signal that the mode
parameters have changed.
Table 3-2. ACL Behavior Parameter Descriptions
Parameter State Description
Auto Store Enable
0 (off)*
1 (on)
Normally, the initiator must invoke a Tape Cartridge Movement
function or utility to remove a cartridge from the drive (after the
drive ejects the cartridge in response to an Unload command).
When the Auto Store Enable bit is set, the CHS automatically
returns any cartridge ejected by the drive to the storage bin from
which it was loaded (or, if this is unknown, to an empty storage
bin).
Auto Audit Override
0 (off)*
1 (on)
The ACL has an internal database which it keeps up to date.
When powered on with a tape cartridge in the drive, however, the
ACL cannot read the bar code on that cartridge until it is
unloaded from the drive.
When the Auto Audit Override parameter is set to off, the ACL
automatically executes a bar code read when it does not have a
bar code ID stored for the cartridge it unloads from the drive.
When the Auto Audit Override parameter is set to on, this
functionality is suppressed.
Bar Code Required
Enable
0 (off)*
1 (on)
When set, the ACL will not load a cartridge if it cannot read the
bar code on the cartridge.
Auto Import Enable
(2XX, 4XX)
0 (off) The ACL does not have any Import/Export Elements.
Auto Import Enable
(8XX)
0 (off)*
1 (on)
The ACL detects the presence of a tape cartridge wen it is
inserted into an IMEX bin. When the Auto Import Enable
parameter is set to on, the ACL automatically transfers the
cartridge to a storage bin. When the Auto Import Enable
parameter is set to off, this functionality is suppressed and the
initiator must issue a Move command to transfer the cartridge to
a storage bin (or tape drive).
* Default state.