Replacing A Controller - IBM DS5100 Installation, User's, And Maintenance Manual

2. Push the component into the slot and, when the component is almost fully
3. Press the component fully into the slot, engaging the pins on the storage
4. Hold open both latches and rotate both levers simultaneously to the closed

Replacing a controller

Attention:
v The replacement RAID controller part number matches the part number of the
v Both power supply and fan units must be connected and powered on with no
v If you are replacing an optimal controller, first make sure that the other RAID
v Be aware that each RAID controller has a unique hardware Ethernet address,
Use the following procedure to replace a controller in a DS5100 and DS5300.
installed, verify that the notches in both levers are aligned with the pins on the
storage subsystem. Verify this alignment to ensure that the component is pulled
evenly into the storage subsystem, ensuring full electrical connection contact on
all interface pins.
subsystem.
position. Release the latches. When you release the latches, you should hear
both latches snap over the levers. This indicates that the component is locked in
place.
Before you replace a RAID controller, verify the following:
RAID controller to be replaced. To provide full functionality, the two controllers
should have the same memory capacity. Although two controllers of different
memories can be paired in a storage subsystem, the mismatch causes some
functions to be disabled (for example, the cache mirroring function).
lighted Needs Attention LEDs. Ensure that the Power LEDs on each of the power
supply and fan units are lit. If either of the power supply and fan units is not
optimal, it is best practice to replace that component before you proceed with the
controller replacement procedure.
controller is optimal and that the fibre channel path from the hosts to the other
RAID controller is also optimal.
which is printed on a label on the front.
1. Use the DS Storage Manager client software to save a storage subsystem
profile.
2. If you are:
v Replacing a failed controller, locate the failed controller by checking the
Needs Attention status LEDs on the controllers in the storage subsystem
(see Figure 106 on page 172). Skip to step 4 on page 172.
v Upgrading an optimal controller, for example, upgrading to a new controller,
or adding or upgrading a host interface card or memory card to an existing
controller, go to step 3.
3. Prepare the controller for removal by performing the following steps:
a. Using the DS Storage Manager client software, on the Subsystem
Management window menu bar, click Advanced
Prepare for Removal.
b. On the Prepare for removal dialog window, in the Enclosure drop down
menu, select Controller Enclosure.
c. In the Component drop down menu, select the controller you want to
remove.
Available controller options are controller in slot A or controller in slot B.
d. Click the Prepare for removal button.
Trouble Shooting
Chapter 5. Replacing components
171