Use this procedure to service a midplane nonconcurrently
for the 5888 PCIe storage enclosure (EXP30 Ultra SSD I/O Drawer).
Notes: - Servicing of the midplane must be performed by only trained service
personnel.
- To complete this procedure, you need special bits or drivers (T10
Torx and 5.5 mm hex).
Attention: - Failure to follow the steps sequentially for this field replaceable
unit (FRU) removal or installation might result in damage to the FRU
or system.
- The failed midplane must only be replaced with a new midplane
that has not yet been installed in another 5888 PCIe storage enclosure.
If the midplane was previously installed in a different 5888 PCIe
storage enclosure, the enclosure serial number will not be properly
updated during power on.
- Once a midplane has been installed and the 5888 PCIe storage enclosure
powered on, the midplane cannot be used in a different 5888 PCIe storage
enclosure.
- Do not replace an enclosure RAID module (ERM) assembly and the
midplane at the same time. Both of the original ERM assemblies must
be installed during the midplane removal and installation procedure
to preserve the enclosure serial number. If an ERM assembly must be
replaced, do so only after the midplane has been replaced and the
5888 PCI storage enclosure powered on.
Use the following precautions whenever you handle electronic
components or cables:
- Attach a wrist strap to an unpainted metal surface of your hardware
to prevent electrostatic discharge (ESD) from damaging your hardware.
- If you do not have a wrist strap, before removing the product
from ESD packaging and installing or replacing hardware, touch an
unpainted metal surface of the system for a minimum of 5 seconds.
- Keep all electronic components in the shipping container or envelope
until you are ready to install them.
- If you remove and reinstall an electronic component, temporarily
place the component on an ESD pad or blanket, if available.
To remove a midplane, complete the following steps:
- Use the location code to find the physical location of the midplane.
The location code begins with U5888.001.sssssss,
where sssssss is the serial number of the PCIe
storage enclosure. Using the serial number, find the PCIe storage
enclosure that has the same serial number printed on the label on
the front of the enclosure.
- Power off the system or systems that are using the PCIe storage
enclosure. For instructions, see Powering
on and powering off the system.
- Label and remove all PCIe cables to the ERM assemblies.
Attention: After the midplane is replaced, the PCIe cables must
be installed back into the same connectors from which they were removed.
Incorrect cable placement might result in data loss.
Remove the six bezels that cover the solid-state drive slots
as shown in the following figure.
Figure 1. Removing the bezels
- Carefully remove each solid-state drive and label it
with the slot from which it was removed. For instructions, see Removing and installing a solid-state drive for a 5888 PCIe storage enclosure.
Note: After the midplane
is replaced, the solid-state drives must be inserted back into the
same slots from which they were removed.
- Remove the enclosure from the rack. For instructions,
see Removing an enclosure from the rack. Then turn it upside down and place the enclosure on a
flat surface.
Figure 2. Turning the enclosure upside down
- Using the correct size Torx bit or driver, remove the
10 screws from the bottom of the enclosure that are closest to the
front of the enclosure.
Figure 3. Removing the screws from the bottom
of the enclosure
- Turn the enclosure top side up.
Figure 4. Turning the enclosure
top side up
- Unseat both power supplies.
To unseat a power supply, press
the orange release tab to the left while sliding the power supply
partially out of the enclosure. For instructions, see Removing and installing a power supply for a 5888 PCIe storage enclosure.
- Unseat both ERM assemblies.
To unseat an ERM assembly, open
the release lever and slide the ERM assembly partially out of the
enclosure. For instructions, see Removing and installing an enclosure RAID module assembly for a 5888 PCIe storage enclosure.
- Remove the 19 screws that secure the top front cover
to the enclosure.
Figure 5. Removing the screws from the top front
cover of the enclosure
- Remove the top front cover.
- Remove the two screws on the right side of the enclosure
and the two screws on the left side of the enclosure that secure the
solid-state drive rails to the enclosure.
Figure 6. Removing the
screws on the right and left sides of the enclosure
- Remove all seven solid-state drive rails.
Note: The EMC springs
on the solid-state drive rails can be easily bent. Avoid touching
the EMC springs when handling the solid-state drive rails.
Figure 7. Removing the solid-state drive rails
- Remove the seven screws that secure the midplane to
the enclosure. Do not remove the two screws at the center that attach
the midplane to its underplate assembly, which are identified in the
following figure.
Figure 8. Removing the midplane screws
- Lift the midplane slightly and pull it forward to remove it from
the enclosure.
Figure 9. Removing the midplane
To install a midplane, complete the following steps:
- Install the new midplane, ensuring that the alignment pins are
properly seated. When seating the midplane on the alignment pins,
do not slide the midplane past the alignment pins in the direction
of the rear of the chassis.
Attention: Sliding the midplane
past the alignment pins might result in damage to the midplane.
Figure 10. Installing the midplane
- Secure the midplane assembly to the enclosure by using the seven
screws that you removed in step 15 in the removing
a midplane section.
Figure 11. Installing the midplane screws
- Secure the two solid-state drive end rails to the enclosure by
using two screws on the right side of the enclosure and two screws
on the left side of the enclosure that you removed in step 13 in the removing
a midplane section.
Notes: - The solid-state drive end rail on the left side of the enclosure
has drive identification numbers. The solid-state drive end rail on
the right side of the enclosure does not have drive identification
numbers.
- The EMC springs on the solid-state drive rails can be easily bent.
Avoid touching the EMC springs when handling the solid-state drive
rails.
- Place the remaining five solid-state drive rails into position,
ensuring that the alignment pins on the bottom of each solid-state
drive rail are properly seated in the enclosure.
Note: Ensure that
the solid-state drive rails are positioned so that the drive location
numbers are in ascending order from left to right.
Figure 12. Installing
the solid-state drive rails
- Secure the top front cover to the enclosure by using the 19 screws
that you removed in step 11 in the removing
a midplane section.
Tip: Leave these screws slightly loose
for easier alignment when you secure the bottom screws.
Figure 13. Installing the screws in the top front cover of the enclosure
- Reseat both ERM assemblies. To reseat an ERM assembly, ensure
that the release lever is in the open position. Then gently slide
the ERM assembly into the enclosure until it stops. Push the release
lever to the closed position. For instructions, see Removing and installing an enclosure RAID module assembly for a 5888 PCIe storage enclosure.
- Reseat both power supplies. To reseat a power supply, gently slide
the power supply into the enclosure until the orange release tab latches.
For instructions, see Removing and installing a power supply for a 5888 PCIe storage enclosure.
- Turn the enclosure upside down.
Figure 14. Turning the enclosure
upside down
- Secure the solid-state drive rails to the enclosure by using the
10 screws that you removed in step 7 in the removing
a midplane section. Ensure that the alignment pins on the bottom of
each solid-state drive rail are properly seated in the enclosure.
Figure 15. Installing the screws to the bottom of the enclosure
- Turn the enclosure top side up, tighten the top cover screws and
install the enclosure in the rack. For instructions, see Installing the 5888 PCIe storage enclosure.
Figure 16. Turning the enclosure top side up
- Install the solid-state drives by using the location information
marked on each drive in step 5 in the removing
a midplane section. For instructions, see Removing and installing a solid-state drive for a 5888 PCIe storage enclosure.
- Install the six bezels that cover the solid-state drive slots.
- Reconnect the PCIe cables to the ERM assembly by using the location
information marked on each cable in step 6 in the removing
a midplane section.
Attention: Incorrect cable placement
might result in data loss.
- Power on the system or systems that are using the PCIe storage
enclosure. For instructions, see Powering
on and powering off the system.
- Check the LEDs to make sure that the enclosure is fully operational.
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