376 IBM z13s Technical Guide
10.3.1 IBM zBX configurations
The zBX can have from one to four racks. The racks are shipped separately, and are bolted
together at installation time. Each rack can contain up to two BladeCenter chassis, and each
chassis can contain up to 14 single-wide blades. The number of required blades determines
the actual components that are required for each configuration. The number of BladeCenters
and racks depends on the quantity of blades (see Table 10-4).
Table 10-4 IBM zBX configurations
A zBX can be populated by up to 112 Power 701 blades. A maximum of 56 IBM BladeCenter
HX5 blades can be installed in a zBX. For DataPower blades, the maximum number is 28.
Note that the DataPower blade is a double-wide blade.
10.3.2 IBM zBX power components
The zBX has its own power supplies and cords, which are independent of the z13s server
power. Depending on the configuration of the zBX, up to 16 customer-supplied power feeds
can be required. A fully configured four-rack zBX has 16 Power Distribution Units (PDUs). The
zBX has these power specifications:
50/60 Hz AC power
Voltage (240 V)
Both single-phase and three-phase wiring
PDUs and power cords
The following PDU options are available for the zBX:
FC 0520 - 7176: Model 3NU with attached power cord (US)
FC 0521 - 7176: Model 2NX (worldwide (WW))
Note: Only zBX Model 004 is supported by z13s servers. zBX Model 004 only exists as a
result of an miscellaneous equipment specification (MES) from a previous zBX Model 002
or Model 003.
Also, the only additional features that can be ordered to a zBX Model 004 are the PS501
and HX5 Blades to fill up empty slot entitlements.
Number of blades Number of BladeCenters Number of racks
711
14 1 1
28 2 1
42 3 2
56 4 2
70 5 3
84 6 3
98 7 4
112 8 4
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