Remove a CMIOU
This is procedure can be performed while the server is running.
This procedure requires that you handle components that are sensitive to
electrostatic discharge. This discharge can cause server components to fail.
When you unpack the replacement part, open the package on a grounded antistatic
mat. Always use an antistatic wrist strap for hardware replacements.
The CMIOU replacement kit includes a plastic cover to protect CMIOU
connectors. Install the connector cover on the CMIOU that you return to
Ensure that you have prepared the CMIOU for removal.
See Prepare a CMIOU for Removal.
Unseat the CMIOU.
See Unseat a CMIOU.
Remove the CMIOU from the server.
Fold the ejector arms back together, toward the center of the CMIOU,
until they latch into place (panel 1).
This protects the levers from damage when you pull the CMIOU
Carefully remove the CMIOU from the server, using two hands, and avoid
bumping the rear connectors (panel 2), and place the CMIOU on a grounded
The rear of the unit is heavy. The CMIOU weighs 25 lbs (11.3 kg).
Use two hands to remove the CMIOU from the chassis.
Install the plastic cover that you removed from the connectors on the new
CMIOU on the connectors of the CMIOU you are replacing.
Ensure that the connector cover is fully engaged and centered over the
If you are replacing DIMMs, an eUSB disk, or a faulty CMIOU (which involves
removing DIMMS for installation in the new CMIOU), remove the CMIOU top cover.
Do not remove the top cover if you are removing a CMIOU to access another
component for service.
Press down on the green button at the top of the cover to disengage the cover
from the CMIOU. While pressing the button, grasp the rear edge of the cover and
slide it toward the rear of the CMIOU until it stops. Lift the cover off.
Determine your next step.
If you are replacing a faulty CMIOU, remove all of the DIMMs and PCIe
carriers (including any installed PCIe cards) and transfer them to the
See Servicing DIMMs and Servicing PCIe Cards.
If the faulty CMIOU is the only CMIOU in a logical domain guest
that uses iSCSI over IPoIB for booting, and the eUSB disk is the
only disk in the boot pool, remove the eUSB disk so you can
reinstall it in the new CMIOU. See Remove an eUSB Disk
If you are replacing faulty DIMMs, see Servicing DIMMs.
If you are removing a CMIOU in preparation for the replacement of
another component, refer to the related replacement procedure.