Western Digital Ultrastar Serv60+8 User Manual page 51

User Guide
When the number of drives that are used in a row is less then the total that are necessary to fill that row, the
3.5" drive blank is used to fill out the row in place of actual drives.
Figure 32: 3.5" Drive Blank Overview Image
Empty drive slots in the center channel must be populated with 2.5" drive blanks.
Figure 33: 3.5" Drive Blank Overview Image
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3 Component Overviews
3.7 Drive Assembly Description