User's Manual

Configuring and Operating the DLT4000 Basic Tape Drive
DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem 3-17
3.6 Description of the Tape Cartridge
The DLTtape III tape cartridge is a 4-inch, gray, plastic cartridge containing 1100 feet
of 1/2 inch magnetic metal particle tape.
The DLTtape IIIxt tape cartridge is a 4-inch, white, plastic cartridge containing 1800
feet of 1/2 inch magnetic metal particle tape.
The DLTtape IV tape cartridge is a 4-inch, black, plastic cartridge containing 1800
feet of 1/2 inch magnetic metal particle tape.
3.6.1 Cartridge Write-Protect Switch
The tape cartridge has a write-protect switch to prevent accidental erasure of data.
Before loading the tape cartridge into the drive, position the write-protect switch on
the front of the cartridge (Figure 3-7).
• Left, so the cartridge is write-protected
• Right, so the cartridge is write-enabled
When you slide the switch to the left, the small orange rectangle is visible. This means
data cannot be written to the tape. The arrow (beneath the orange rectangle and over
the two lines on the write-protect switch) indicates data cannot be written to the tape.
On the right side of the write-protect switch an arrow over one line indicates that if
you slide the write-protect switch to the right, data can be written to the tape.