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5 Supporting Ultrium features
This section covers the following features of HP Ultrium drives:
•
“Cartridge Memory (LTO-CM)” (page 25)
•
“Automation interface” (page 25)
•
“Cleaning” (page 38)
•
“Resetting drives” (page 38)
•
“Backup software” (page 39)
•
“Controlling data compression” (page 39)
•
“Other mode page information” (page 39)
Cartridge Memory (LTO-CM)
LTO Cartridge Memory (LTO-CM) is EEPROM memory that is embedded in every LTO Ultrium tape
cartridge. It is non-volatile and is contactless in that it is read by RF coupling rather than electrical
contact.
Further information
•
For suggestions of how to make use of cartridge memory in libraries, see “Using Cartridge
Memory” in “Using Special Features in Libraries”, Chapter 2 of the Hardware Integration
Guide, Volume 1 of the HP LTO Ultrium Technical Reference Manual.
Automation interface
An automation controller can connect to the tape drive through a serial RS-422 port or an Ethernet
port. The serial RS422 port supports both the Automation Drive Interface (ADI) transport protocol
(ADT-2) and an HP proprietary Automation Control Interface (ACI) protocol. The Ethernet automation
port supports the Internet Automation/Drive Interface (iADT) transport protocol. The serial RS-422
automation interface defaults to the ACI protocol and will only transition to ADT-2 when the
automation controller initiates an ADT-2 login exchange.
NOTE: The same connector is used for both interfaces; for convenience, it is referred to as the
ADI Connector in this manual.
Automation/Device Interface (ADI)
There are two elements to the Automation/Device Interface (ADI):
•
ADI Transport Protocol (ADT-2)—a standard protocol for communication between a SCSI
automation device and a SCSI data transfer device, such as a tape drive.
The ADT-2 protocol allows conforming ADI SCSI devices to inter-operate. The objectives of
ADT-2 are:
◦
To provide a low-cost interconnect method between an automation device and the data
transfer devices that reside within the media changer.
◦
To standardize this interface so that different disk drives, tape drives, optical media drives,
and other SCSI devices may be added to conforming media changers without requiring
modifications to generic system hardware.
◦
To provide for the addition of special features and functions through the use of
vendor-specific options.
Cartridge Memory (LTO-CM)
25