User Guide

Ampex 1308910-01 5-29
ACL Utilities acl_park_chs
5.10 acl_park_chs
NAME
acl_park_chs - park the ACL cartridge handling system (DST 412).
SYNOPSIS
acl_park_chs [ -f <device_special_file> ]
acl_park_chs -help [ help_type ]
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.
acl_park_chs is available to all users. See “ACL Utilities Overview” on page 5-1 for ACL
naming conventions and general information on command-line options and arguments.
OPTIONS
-f < device_special_file>
Specifies the device special file to use for the operation.
ARGUMENTS
-help [ help_type ]
Displays help on stderr and invalidates all other options, cancelling any other actions. Valid
keywords for the optional help_type specification are:
revision and v_revision.