IBM EXN1000, Hardware And Service Manual, Page: 61 / 94

DANGER
The EXN1000 expansion unit is extremely heavy. To avoid injuring
yourself or damaging the EXN1000 expansion unit, you must work
with at least two other people when you install the EXN1000
expansion unit in the rack.
Removing an EXN1000 expansion unit from a loop
To remove an EXN1000 expansion unit from a loop of EXN1000 expansion
units, complete the following steps:
1.
Shut down the N series storage system by entering the following
command at the console:
halt
CAUTION:
Disable the cluster first and then use the
halt
command to shut down
all controllers to which the loop is connected.
2. Turn off the power switches on the EXN1000 expansion unit.
3. Put on the antistatic ESD strap and grounding leash.
4. Disconnect the two EXN1000 expansion unit power cords from the
EXN1000 expansion unit that you are going to remove.
5. Disconnect the Fibre Channel cables connecting the EXN1000 expansion
unit to the other EXN1000 expansion units or the N series storage system.
6.
Use a flat-blade screwdriver to remove the tie-down screws securing the
rear of the EXN1000 to the rack. Use a 7mm nut driver to remove the
screws securing the front of the EXN1000 to the rack.
svc00168
32-55 kg (70.5-121.2 lbs)
CAUTION:
Use safe practices when lifting.
7. With the help of at least two people, remove the EXN1000 expansion unit
from the rack.
Chapter 4. Replacing EXN1000 expansion unit devices
31