IBM DCS3860, Installation, User'S, And Maintenance Manual

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d. Disconnect the right cable chain mounting bracket from the drive drawer.
Hold the orange handle (see Figure 58), and pull the mounting bracket
completely out of the drive enclosure. Remove the right cable chain.
e. Reinstall the right fan assembly. Wait until the fan speed slows down and
the green Power LED is lit before proceeding to ensure that the right fan
assembly is operating correctly before removing the left fan assembly. See
“Replacing a fan assembly” on page 108 for the steps to install a fan
assembly.
f. Remove the left fan assembly. See “Replacing a fan assembly” on page 108
for the steps to remove a fan assembly.
Attention: If you are performing this procedure with the power turned
on, you must reinstall the fan assembly within 10 minutes. Otherwise, the
equipment could overheat.
g. Disconnect the left cable chain mounting bracket from the midplane. Hold
the orange handle and pull the mounting bracket completely out of the
storage expansion enclosure.
Orange circle
Figure 57. Vertical mounting bracket that connects to the midplane
Orange circle
Figure 58. Horizontal mounting bracket that connects to the drive drawer
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IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide