Replacing a ZS5-4 DIMM
![Caution Caution](graphics/caution.gif) | Caution -
This procedure requires that you handle components that are sensitive to
static discharge, which can cause the component to fail. To avoid damage,
wear an antistatic wrist strap and use an antistatic mat when handling
components.
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Removing a DIMM is a cold-service operation. You must
power off the appliance before you remove the DIMM. There will be a loss of
access to the storage unless the system is in a clustered configuration.
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Identify the faulted DIMM.
Go to the Maintenance > Hardware section of the BUI, click the
right-arrow icon for the controller, click DIMM, and note the ID of the
faulted DIMM, which has an amber icon. To highlight the location of the
memory module in the controller picture, click on the module ID. To view
details about the faulted module, click its information icon and then click
Active Problems.
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Shut down the controller using one of the power-off methods described in
Powering Off the Controller.
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Disconnect the AC power cords from the rear panel of the storage
controller.
![Caution Caution](graphics/caution.gif) | Caution -
Because 3.3 VDC standby power is always present in the system, you
must unplug the power cords before accessing any cold-serviceable
components.
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Extend the controller from the rack as described in Extending the Controller from the Rack.
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Remove the top cover as described in Removing the Controller Top Cover.
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Remove the memory riser card in which the faulted DIMM resides. See Replacing a ZS5-4 Memory Riser Card.
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Rotate both DIMM slot ejector levers outward as far as they will go.
The action unlocks the DIMM and expels it from the socket.
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Carefully lift the DIMM straight up to remove it from the socket.
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Repeat the above steps until all faulty DIMMs are removed.
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Ensure that the DIMM ejector levers at both ends of the DIMM slot are in
their fully open position.
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Align the DIMM with the empty slot.
Align the notch on the DIMM with the protrusion on the DIMM slot to ensure
that the DIMM is installed correctly.
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Gently and evenly push the DIMM into the slot until the ejector levers
rise and lock the DIMM into place.
The levers rise as the DIMM is pushed further into the slot.
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Ensure that the levers have risen completely and have locked the DIMM in
the slot.
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Install the replacement memory riser card as described in Replacing a ZS5-4 Memory Riser Card.
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Replace the top cover on the chassis.
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Return the controller to the normal rack position by pushing the release
tabs on the side of each rail while slowly pushing the storage controller
into the rack.
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Reconnect all cables to their original ports, referring to the labels
previously added as a guide. For cabling details, see the
Oracle
ZFS Storage Appliance Cabling Guide
.
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Reconnect the power cords to the power supplies.
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Verify that standby power is on. Approximately two minutes after plugging
in the power cords, the Power/OK status indicator on the front panel
flashes.
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Press and release the recessed Power button on the storage controller
front panel.
The Power/OK status indicator next to the Power button lights and remains
lit.
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Go to the Maintenance > Hardware screen of the BUI. Click the
right-arrow icon for the controller, click DIMM, and verify that the status
icon
is green for the newly installed module. To view
details about the new module, click its information icon.
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If a fault does not self-clear, see Repairing Active Problems.