User Guide

3-10 Preliminary Draft Ampex 1308904-X4

Model No.

Running Head

Tape Cartridge Movement ACL Application Programmer’s Guide

3.5 Tape Cartridge Movement

You can use the following functions and utilities to move tape cartridges between ACL

elements.

• aclMoveCartridge() and acl_move_tape move a tape cartridge from the speciﬁed

source location to the speciﬁed destination location.

• aclMoveVolume() and acl_move_volume move the speciﬁed tape cartridge (identiﬁed

by barcode ID) to the designated location.

Note: To ensure that the source element is full or the destination element is empty, use the

aclAuditElement() function or the acl_audit_element utility.

Table 3-2 describes the ACL conﬁguration parameters that control how the ACL implements

a move command.

The ACL updates the internal database after each successful move command.

3.6 CHS Positioning

The initiator can use the aclPosition() function to position the designated storage bin in front

of the tape drive (2XX, 4XX) or to position the cartridge handler in front of the designated

element (8XX).

3.7 Operational Status

The following paragraphs describe the ACL status interface.

3.7.1 Unit Ready Status

You can use the aclTUR() function to check whether the ACL is ready for operation. The

function succeeds when the ACL is ready to accept commands and fails when the ACL is not

ready to accept commands.

3.7.2 Initialize Element Status

Any time that the ACL detects a condition that could cause element status to change, it

performs an initialization routine to audit the tape cartridge bins and update element status in

the internal database. This includes reading and storing the barcode IDs of the tape cartridges

contained therein.

The initialization routine is always performed when: