Operation
17
3
For more information about tape cartridges, see Table 3-3.
Write-Protect
The tape cartridge has a write-protect switch (Figure 3-2) to prevent accidental
erasure of data. This switch can be set prior to or after inserting the tape
cartridge into the tape drive.
•
To write protect a cartridge, move the switch to the left so that a small
rectangle is visible.
•
To write enable a cartridge, move the switch to the right so that the
rectangle is not visible.
If the write-protect switch is changed while the tape cartridge is being written
to by the tape drive, the change does not take effect until the current write
operation completes.
Table 3-3
Tape Cartridge Specifications
Type
Length
Native
Capacity
Compressed
Capacity
1
III
356m (1167 ft)
10 Gbytes
20 Gbytes
IIIxt
541m (1778 ft)
15 Gbytes
30 Gbytes
IV
541m (1778 ft)
20 Gbytes
40 Gbytes
1. Assumes a typical compression ratio of 2:1. The compression ratio will vary depending upon the type of
data being compressed.
