IBM RT User's Setup Manual page 198

I n s t a l l i n g a F i x e d - D i s k D r i v e in P o s i t i o n D
Warning: Handle the fixed-disk drive carefully. Dropping,
shaking, or rough handling can damage both the drive and
any stored data and can cancel the warranty.
The fixed-disk drive types installed in drive positions C and D
be the same drive type. The drives do not operate
m u s t
correctly if drive types are mixed.
Refer to the system unit diagram in Appendix A to locate drive
position D.
Refer to "Handling Static-Sensitive Drives" on page 2-4 before
beginning this section.
Warning: Follow
a l l
Covers From the System U nits" on page 1-4 before installing
the second drive.
Section 2. Removing and Installing Drives in IBM 6150
instructions under "Removing the
2-23