User Guide

Ampex 1308904-X4 Preliminary Draft 4-13

ACL Application Programmer’s Guide aclAuditElement

unsigned short sea; /* assign element address here */

char vtag[33];

}

aclElementStatus_t;

STRUCTURE MEMBERS

type Identiﬁes the element type:

ACL_CHS - Transport Element (CHS).

ACL_BIN - Storage Element (storage bin).

ACL_IMEX - Import/Export Element (IMEX bin, 8XX).

ACL_DRIVE - Data Transfer Element (tape drive).

typedef enum

{

ACL_unused = 0,

ACL_CHS,

ACL_BIN,

ACL_IMEX,

ACL_DRIVE

}

aclElementType_t;

acc An access bit of one or zero indicates, respectively, that the ACL can or

cannot transfer a tape cartridge to or from the element.

ex An exception bit of one indicates an abnormal or unknown element state.

Zero indicates a normal state.

full A full bit of one indicates the element contains a tape cartridge. Zero

indicates the element is empty.

size The size of the tape cartridge in the element:

0x0001 - Small.

0x0002 - Medium.

0x0003 - Large.

0xFFFF - Unknown.

pos Reports the position of the CHS.

2XX, 4XX – Parked (0), or the address of the storage bin positioned in

front of the tape drive (1000-1006 / 0x3E8-0x3EE).

8XX – The address of the location at which the cartridge handler is

positioned:

Tape drive (100 - 103 / 0x64 - 0x67).

Storage bin (1000 - 1247 / 0x3E8 - 0x4DF).

IMEX bin (10 - 17 / 0x0A - 0x12).