H3C UniServer B5800 G3, User Manual, Page: 26 / 78

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5. Power on the blade server. For more information, see " Powering on the blade server ."
Replacing the rear mezzanine RAID controller
Guidelines
The blade server provides three mezzanine module connectors (see Figure 3 ) at the rear. You can
install a mezzanine RAID controller only onto connector 3.
When you install a rear mezzanine RAID controller, make sure the corresponding processor is
present.
Make sure the standard storage controllers (including both front and rear storage controllers) are of
the same vendor (PMC or LSI). For information about the available storage controllers and their
vendors, contact Technical Support.
Figure 3 Mezzanine module slots at the rear
Prerequisites
Take the following ESD prevention measures:
•
Wear antistatic clothing.
•
Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
•
Do not wear any conductive objects, such as jewelry or watches.
Before replacing, back up data, stop all services, and power off the server. For more information, see
"
Powering off the blade server ."
Remove the blade server. For more information, see " Removing the blade server ."
When you replace a component, examine the slot and connector for damages. Make sure the pins
are not damaged (bent for example) and do not contain any foreign objects.
You might also remove other components. For the removed components to be reinstalled correctly,
record their positions and connections before removal, for example, taking pictures of cable
connection and drive installation positions, or labeling cables.
Removing the rear mezzanine RAID controller
1. Remove the access panel. Press the unlock button on the access panel, slide the panel to the
server rear, and lift the access panel.
2. Remove other mezzanine modules that might hinder your operation, if any.