IBM TotalStorage 3494 Tape Library, Operator'S Manual

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Tape Cartridge File Protection (3592 Tape Drives)
Each tape cartridge includes a write-protect switch (
5
in Figure 26) that, when set
to the write-protect position, prevents either writing data to the tape or erasing
data from the tape.
Normally, cartridges used in the 3494 Tape Library should not be write-protected
manually. If required, software can be used to write-protect the cartridges. This
allows the host, when appropriate, to identify a cartridge that no longer contains
current data and can therefore be used as a scratch cartridge. Do not write-protect
scratch cartridges as new data cannot be written to write-protected cartridges.
For additional information, see Care and Handling of the IBM Magnetic Tape
Cartridge .
Tape Cartridge Bar Code Labels (3592 Tape Drives)
Each tape cartridge in the 3494 Tape Library must have an external bar code label
that is operator- and device-readable. The bar code label identifies the volser and
the cartridge type.
Note: The only exception for the label requirement is when using the Unlabeled
Tape Operations function. See “Unlabeled Tape Facility” on page 35 for
more information.
The bar code label contains eight characters. Characters can be uppercase A–Z, the
numerals 0–9, a blank space, or the characters enclosed in square brackets: [@ # $ *
& - ?]. The first six characters identify the volser; these characters are left-justified
on the label. The seventh and eighth characters identify the cartridge type as
follows:
v
JA identifies the Enterprise Tape Cartridge (
1
in Figure 27 on page 32).
1
2
a14m01
13
TM IBM TotalStorage Enterprise Tape Cartridge 3592
Reorder No. 18P7534
DATA
3
4
5
Figure 26. Tape Cartridge Requirements (3592 Tape Drives)
30
3494 Tape Library Operator Guide