Sun Microsystems Sun Fire 12K, Руководство по планировке объекта

Страница: 34 / 100

2-6 Sun Fire 15K/12K Systems Site Planning Guide • June 2003
2.3 Computer Room Layout
The fan tray redundancy in the Sun Fire 15K/12K systems provide enough air flow
for adequate system performance on a flat floor. A raised floor is suggested for
optimal system performance. Air enters the cabinet through the front and rear doors
and through the air intake panels underneath the cabinet. Review the suggested
floor plan layout sample for a fully configured system in
FIGURE 2-2
for planning
your solid and perforated tile floor configuration. This floor plan is based on floor
tiles delivering 600 cubic feet per minute (cfm) cooling for each tile.
FIGURE 2-3
shows a floor plan layout for multiple Sun Fire 15K/12K systems.
Note – In higher power consumption configurations, some perforated tiles might be
required adjacent to the server or the customer selected I/O expansion racks. These
tiles will restrict the use of adjacent space, and this restriction should be clearly
identified.
The maximum cable distance between the Sun Fire 15K system and the I/O rack is
157.5 in. (400 cm). If you are using a single-ended SCSI device for this connection,
the connection cannot be made from the farthest rear corner of the system to the
front top of the I/O rack, even if the rack is placed at the minimum distance
requirement of 5.0 in (12.7 cm).