HP NonStop G-Series - Manual (Page 66)

5157/5157 ACL S-Series Subsystems Installation/ Users Guide
Configuring and Operating the 5157 Tape Drive
4-13
4.5.2 Data Protection
When the cartridge write-protect switch is moved to the left, the
drive turns on the write protect LED immediately. If the drive is
writing to the tape, write protect does not take effect until the
current write operation completes.
Table 4-3 describes what happens to data protection when the
write-protect switch is moved before loading the cartridge.
Table 4-3 Before Loading the Cartridge
If the write-protect switch is moved… Then…
To the left, the tape is write-protected; the
orange indicator on the cartridge shows Data cannot be written to the
tape.
To the right, the tape is write-enabled Data can be written to the tape
(if it is not software write-
protected).
Table 4-4 describes what happens to data protection when the
write-protect switch is moved during operation.
Table 4-4 After Loading the Cartridge and Operating
If the write-protect switch is moved… Then…
From the write-protected position to write-
enabled The tape becomes write-
enabled (after a variable
amount of seconds).
From write-enabled to write-protected The tape becomes write-
protected (after a variable
amount of seconds).