• Verify that the label is smooth and parallel, and has no roll-up or roll-over. The label must be flat to
within 0.5 mm (0.02 in.) over the length of the label and have no folds, missing pieces, or smudges.
• Do not place other machine-readable labels on other surfaces of the cartridge. They might interfere with
the ability of the drive to load the cartridge.
Write-Protect switch
The position of the write-protect switch on the tape cartridge determines whether you can write to the
tape.
If the switch (1) is set to:
• The locked position (solid red). Data cannot be written to the tape.
• The unlocked position (black void). Data can be written to the tape.
If possible, use your server's application software to write-protect your cartridges (rather than manually
setting the write-protect switch). This setting allows the server's software to identify a cartridge that
no longer contains current data and is eligible to become a scratch (blank) data cartridge. Do not write-
protect scratch (blank) cartridges; the tape drive is not able to write new data to them.
If you must manually set the write-protect switch, slide it left or right to the wanted position.
Figure 98. Setting the write-protect switch
Table 64. Location of the write-protect switch
1 Write-protect switch
Handling the cartridges
Incorrect handling or an incorrect environment can damage cartridges or their magnetic tape.
Attention: Do not insert a damaged tape cartridge into the drive. A damaged cartridge can
interfere with the reliability of a drive and might void the warranties of the drive and the cartridge.
Before a tape cartridge is inserted, inspect the cartridge case, cartridge door, and write-protect
switch for breaks.
To avoid damage to your tape cartridges and to ensure the continued high reliability of your IBM LTO
Ultrium tape drives, use the following guidelines:
Providing training
Providing training to the users of your tape drive can prolong the life of your tape cartridges.
• Post procedures that describe appropriate media handling in places where people gather.
IBM Conîš´dential
208IBM TS4300 Tape Library Machine Type 3555: User's Guide
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