HP 3PAR StoreServ 10000 Storage Physical Planning Manual

Figure 51 Spacing Dimensions of RETMA Rails
Maintaining Minimum Clearances
Proper clearances should be maintained for all third-party rack mounted installations to allow for
proper ventilation, cabling and access for maintenance.
Table 15 (page 76) shows the minimum clearance that should be maintained for third-party rack
installations:
Table 15 Minimum Clearances for Third-Party Racks
Minimum Clearances
Front: 36 in. (91.4 cm)Service
Rear: 30 in. (76.2 cm) x 19 in. (50.8 cm) unobstructed clearance directly behind
the chassis. See below for providing for Service Access Figure 52 (page 77). Sides:
n/a
Front: 12 in. (30.5 cm)Ventilation
Rear: 12 in. (30.5 cm)
Sides: n/a
Neither vented floor tiles nor raised flooring are required.
Doors: Cabinet doors must be at least 1.5 in. (3.81 cm) away from the front and
rear of the enclosures and be perforated with a minimum 50 percent open pattern
across the entire surface.
Front: 2 FC cables for each DC4 drive chassis in the rackCabling
Rear: 30 in. (76.2 cm) total clearance
Sides: n/a
76 Third-Party Rack Mounting