118 Sun Server X4-2 Service Manual • May 2014
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Caution – Ensure that all power is removed from the server before removing or
installing a disk backplane. You must disconnect the power cables from the server
before performing these procedures.
■ “Disk Backplane Configurations” on page 118
■ “Remove the Disk Backplane” on page 119
■ “Install the Disk Backplane” on page 122
Related Information
■ “Disconnect Cables From the Server” on page 39
■ “Take Antistatic Measures” on page 42
■ “Extend the Server to the Maintenance Position” on page 39
■ “Open the Server Fan Door” on page 43
Disk Backplane Configurations
The server has one or two disk backplanes depending on the number of storage
drives installed. On servers with four or fewer storage drives, only one disk
backplane is needed. Servers with five or more storage drives require two disk
backplanes. The following figure shows a configuration with two disk backplanes,
DBP0 and DBP1. Storage drives 0 through 3 plug into DBP0. Storage drives 4 through
7 plug into DBP1.
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