IBM Magstar 3494 Cartridge System Tape Labels, Media-Type Cartridge Type Color Label Handled as

The external labels on the cartridges identify the cartridges to the 3494. Host control software in some operating environments requires that internally written labels on volumes correspond to external volsers. IBM recommends that correspondence of external and internal cartridge labels be veri®ed by library control software as part of mount processing. Cleaner cartridges must also have operator and machine-readable external labels to identify each cartridge.

High Performance Cartridge Tapes (HPCT) managed by the VTS are automatically checked for the correct internal volume label and re-labeled if necessary.

Figure 17 shows the possible labeling con®gurations of the tape cartridges and Table 1 shows how the library handles the different types of labeling con®gurations.

Gray Gray Gray White Gray White Black

Figure 17. Cartridge System Tape Labels

Blue

A06O0002

Table 1. Cartridge Tape Labeling (Media type default set to Cartridge System Tape)

		Media-Type
Cartridge Type	Color	Label	Handled as:
„1… Cartridge System Tape	Gray	Not present	Cartridge System
			Tape(default, see note)
„2… Cartridge System Tape	Gray	Present (1)	Cartridge System Tape
„3… Enhanced Capacity	Gray and	Not present	Cartridge System
Cartridge System Tape	white		Tape(default, see note)
„4… Enhanced Capacity	Gray and	Present (E)	Enhanced Capacity
Cartridge System Tape	white		Cartridge System Tape
„5… High Performance	Black with	Present (J)	High Performance Cartridge
Cartridge Tape	blue leader		Tape
	block and
	identi®cation
	notches

Note: The default could be Enhanced Capacity Cartridge System Tape or High Performance Cartridge Tape instead of Cartridge System Tape; refer to ªOperational Statusº on page 111.

Chapter 1. Introduction 21