IBM Storwize V7000 Unified Problem Determination Manual page 394

Before you begin
Two persons are required at step 7
Procedure
To replace the support rails, complete the following steps.
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Storwize V7000 Unified: Problem Determination Guide 2073-720
1. Identify the enclosure mounted on the rails being replaced.
Follow the steps in "Procedure: Identifying which Storwize V7000 Gen2
enclosure or canister to service" on page 252 to ensure that you identify the
correct enclosure.
2. Shut down the system by following the steps in "Procedure: Powering off
your Storwize V7000 Gen2 system" on page 280.
3. Remove power from the enclosure by unplugging both power cables from the
electrical outlets.
4. Ensuring you identify which port each cable connects to, remove all cables
from the back of the enclosure that has faulty support rails.
5. Remove the end caps from the front flanges of the enclosure by following the
removal instructions in topic "Replacing Storwize V7000 Gen2 enclosure end
caps" on page 328.
6. Unscrew the M5 screw from the left flange.
Repeat with the M5 screw in the right flange.
7. Slide the enclosure from the rack.
CAUTION:
The weight of this part or unit is between 18 and 32 kg (39.7 and 70.5 lb). It
takes two persons to safely lift this part or unit. (C009)
8. Locate the left support rail.
Record the shelf number of the support rail so that the replacement rails can
be installed into the same position.
9. At the rear of the rack, remove the securing M5 screw from the bottom hole of
the rear bracket of the rail, then open the rear hinge bracket (Figure 113 on
page 367).