H3C UniServer R4900 G3, User Manual

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Verifying the replacement
Log in to HDM to verity that the drive expander module is in a correct state. For more information,
see HDM online help.
Replacing drive backplanes
WARNING!
To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before
touching them.
Removing drive backplanes
1.
Power off the server. For more information, see " Powering off the server ."
2.
Remove the server from the rack. For more information, see " Removing the server from a rack ."
3.
Remove the access panel. For more information, see " Replacing the access panel ."
4.
Remove the chassis air baffle if it hinders the replacement. For more information, see
"
Removing air baffles ."
5.
Remove the fan cage if it hinders the replacement. For more information, see " Replacing the
fan cage ."
6.
Remove the security bezel, if any. For more information, see " Replacing the security bezel ."
7.
Remove the drives attached to the backplane. For more information, see " Replacing a
SAS/SATA drive ."
8.
Remove the drive expander module if it hinders drive backplane removal. For more information,
see "
Replacing the drive expander module ."
9.
Disconnect cables from the backplane.
10.
Remove the drive backplanes:
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To remove the front drive backplane, loosen the captive screws on the backplane, slowly lift
the backplane, and then pull it out of the chassis, as shown in
Figure 176 .
The removal procedure is the same for the available front drive backplanes. This procedure
uses the front 25SFF drive backplane.
CAUTION:
Do not use excessive force when lifting the drive backplane out of the chassis. Using
excessive force might strike the components on the backplane against the chassis and
damage the components.