Fan Trays; Figure 4-1 Fan Tray - Sun Microsystems Sun Fire E25K Service Manual

4
C H A P T E R

Fan Trays

The Sun Fire E25K/E20K systems have eight hot-swappable fan trays. Each fan tray
has two layers of six fans for a total of twelve fans per tray. There are two fan trays
at the top and two fan trays at the bottom on both the front and rear of the system.
See
FIGURE 4-1
Guide pin
(left side only)
FIGURE 4-1
All fan trays are interchangeable.
This chapter contains the following sections:
Section 4.1, "Fan Tray LEDs" on page 4-2
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Section 4.2, "Fan Tray Replacement Procedures" on page 4-3
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. This chapter contains the replacement procedures for the fan trays.
Fan Tray
Section 4.2.1, "Isolating a Failed Fan Tray" on page 4-3
Section 4.2.2, "Powering Off a Fan Tray" on page 4-4
Section 4.2.3, "Removing a Fan Tray" on page 4-4
Section 4.2.4, "Installing a Fan Tray" on page 4-5
Section 4.2.5, "Verifying a Fan Tray" on page 4-6
4-1