Quantum A-Series manual Gigabyte

Institute of Electrical and Electronics Engineers

Glossary

G		GB	Gigabyte
			SI — 1,000,000,000 bytes or 109. This is the International System
			of Units (SI) definition commonly used by telecommunications
			and storage manufacturers.
			GiB — 1,073,741,824 bytes, equal to 10243, or 230. This is the
			definition often used in computer science, computer
			programming, and in the majority of computer operating
			systems documentation. This measurement can be abbreviated as
			GiB (gibibyte) to avoid ambiguity, as defined in IEC 60027-2.
			Note: For the purpose of this document, SI is used.
		GS	German Safety.
		Head	The tiny electromagnetic coil and metal pole used to create and
	H
			read back the magnetic patterns on the media. Also known as the
			read/write head.
		HiFN	An ASIC (Application Specific Integrated Circuit) for the SDLT
			that handles data compression.
		HIM	The Host Interface Module implements the interface between the
			host system and the tape drive.
		HRE	Hard Read Error.
		HTTP	HyperText Transfer Protocol - The protocol for moving hypertext
			files across the Internet. Requires a HTTP client program on one
			end, and an HTTP server program on the other end. HTTP is the
			most used protocol on the Internet.
		HWE	Hard Write Error.
		ICM	The Integrated Controller Module contains the main controller
	I
			and servo microprocessor, the custom-designed SDLT ASICs,
			and the cache memory.
		IEC	The International Electrotechnical Commission is a standards
			organization that prepares and publishes international standards
			for all electrical, electronic, and related technologies.

IEEE

Interface A hardware or software protocol—contained in the electronics of the media controller and tape drive—that manages the exchange of data between the tape drive and computer.

IP Internet Protocol.

Quantum A-Series Tape Drives User’s Guide 84