IBM RS/6000 44P - Manual (Page 31)

Write-Protecting 3.5-Inch Diskettes
Write-protecting diskettes is necessary so that important information is not accidentally
lost. When diskettes are write-protected, you can read information from the diskettes,
but you cannot write information to them.
There is a write-protect tab on the 3.5-inch diskette. To locate the write-protect tab, turn
the diskette over with the label facing down.
To prevent writing onto a diskette, slide the write-protect tab to open the protect slot, as
shown in the illustration.
To allow writing onto a diskette, slide the write-protect tab to cover the protect slot, as
shown in the illustration.
(Slot Open)
Write-Protect Tab
Write-Protect Tab
(Slot Closed)
Chapter 2. Using the 44P Series Model 170 13