IBM x3250 M3 Problem Determination And Service Manual page 195

To remove a drive cage, complete the following steps:
1. Read the safety information that begins on page vii and "Installation guidelines"
on page 127.
2. Turn off the server and peripheral devices, and disconnect the power cord and
all external cables.
3. Remove the hard disk drives from the cage.
4. Remove the cover (see "Removing the cover" on page 130).
Attention: To ensure proper cooling and airflow, do not operate the server for
more than 30 minutes with the cover removed.
5. Remove the hard disk drive backplane or back plate:
v 2.5-inch drive models: Remove the hard disk drive backplane from the
cage. See "Removing the SAS backplane (2.5-inch drives)" on page 174 for
instructions.
v 3.5-inch drive models: Remove the hard disk drive backplane or back plate
from the cage. See "Removing the backplane or back plate (3.5-inch drives)"
on page 172 for instructions.
6. Remove the screws that hold the drive cage in place.
7. Slide the drive cage forward and remove it from the server.
8. If you are instructed to return the drive cage, follow all packaging instructions,
and use any packaging materials for shipping that are supplied to you.
Chapter 5. Removing and replacing server components
177