Chapter 3. Pedestal Configuration Rules
Order Number: EK–SMCPC–UG. A01
3–3
3.3
Pedestal Power
The following configuration rules apply to the pedestal power supply:
•
The pedestal requires an ac input primary power supply mounted in slot 7.
•
The pedestal is equipped with an ac distribution unit to provide switched-controlled
input voltages to the pedestal power supply/supplies.
•
An optional redundant power supply or an optional battery backup unit (BBU) can
only be mounted in slot 6.
•
Each power supply can support a maximum of seven 3.5-inch SBBs in slots 0 – 6.
•
Power supplies are available with wattage ratings of 131, 145, and 150. Maximum,
seven-drive configurations of 7200-rpm hard disk drives require the use of a 150-
watt power supply.
3.4
StorageWorks Building Blocks (SBBs)
The following configuration rules apply to the pedestal SBBs:
•
Pedestal capacity is measured by the number of 3.5-inch SBBs (Figure 3–2).
•
Each 3.5-inch SBB occupies one pedestal slot.
•
All pedestal power supplies and BBUs are mounted in 3.5-inch carriers.
•
A 5.25-inch SBB requires three pedestal slots for mounting (Figure 3–3).
•
Some SBB addresses automatically default to the pedestal slot number; on other
SBBs, addresses can be controlled by the device address switches on the rear of the
device.
Figure 3–2 Typical 3.5-inch SBB
