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Therefore, IBM recommends that the x440 be connected to a 220 V power
source to ensure power supply redundancy for large configurations.
Tip: If power is not redundant, the Nonredundant LED will be lit in the Light
Path Diagnostic panel (see Figure 1-14 on page 26.
Two system power-cord connectors are available on the back of the x440, one for
each of the power supplies. Connect each of these power connectors to separate
power circuits to ensure availability if one circuit should fail.
The x440 ships with two 2.8 m/9 ft. IEC 320-C13 to IEC 320-C14 power cables
for intra-rack power distribution. Models shipped in the US also include two 2.8
m/9 ft. IEC 320-C13 to NEMA 6-15P power cords for attachment to high-voltage
power sources.
3.9 Solution Assurance Review
Some level of Solution Assurance Review (SAR) should be performed for all IBM
solutions. The level of SAR (self, peer, or expert) should match the complexity of
the solution. For example, simpler solutions may need only a self review.
However, a combination of the customer environment risk combined with the
complexity of the solution may require that an expert level SAR take place,
facilitated by a Quality Assurance practitioner and supported by a team of
technical experts.
Note: The EXAct Business Partners themselves may be required to perform the
Solutions Assurance Review.
If a solution contains four or more Enterprise X-Architecture servers (currently
x360 and x440), then an expert SAR is mandatory.
For further information on what is required, refer to the above Solution Assurance
Web sites. EMEA and Americas information is available. Procedures for Asia
Pacific countries are currently in development.
Trigger Tool
The SAR Trigger Tool provides a recommendation on the level of quality/Solution
Assurance that will be required. It is available from one of the URLs above.
The three levels are:
Expert
– For technically challenging, high-risk solutions
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IBM ^ xSeries 440 Planning and Installation Guide
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