User Guide

Ampex 1308910-01 4-25

libacl API Functions aclPark

4.12 aclPark

NAME

aclPark() - park the ACL cartridge handling system (DST 412).

SYNOPSIS

#include <acl.h>

int aclPark(char *device);

DESCRIPTION

The aclPark() function, acl_park_chs utility, or the park command (using the front panel

controls in manual mode) places the CHS in the parked position. If you invoke any function

or utility that requires CHS movement, the door is closed, and the ACL is on-line, the CHS

will be automatically unparked.

To gain access to the storage bins,the CHS must be placed into the parked position . When the

door is opened, the CHS is locked in its parked position and any function or utility that

requires CHS movement will fail. The aclAuditLibrary() function and acl_audit_library

utiltiy will return

door open and position parked for the CHS element, with all other

element states reported as unknown. When you close the door, and place the ACL on-line, the

CHS automatically unparks, and performs an initialization routine to audit all elements and

update the internal database.

aclPark() is available to all users.

PARAMETERS

*device Pointer or string specifying the device special ﬁle associated with the

ACL.

RETURN VALUES

The return value is DST_SUCCESS (0) or DST_FAILURE (-1). See the “Return Values” on

page 4-2for information on how to determine the cause of a failure.