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In a 4 PSU configuration, mixing of 900W PSUs and 1400W PSUs is allowed. The
following rules apply when mixing PSUs.
A mixture of 900W and 1400W PSUs must be installed in group A and group B.
Example:
Bay 1 (
group A
) = 900W
Bay 2 (
group B
) = 1400W
Bay 3 (
group A
) = 1400W
Bay 4 (
group B
) = 900W
Power Supply Input Feed Wiring for Redundancy
The IMM2 Code for the x3850 X6 server requires power supplies in bays 1 and 3 to
be wired to feed 1, and power supplies in bays 2 and 4 to be wired to feed 2.
This is due to how the power supplies are internally connected and how the IMM2
determines if the system is redundant based on the
power policy selected. If the
power supplies are not correctly connected, the selected IMM2 power policy may not
function as intended. Power policies are discussed in the next section.
The following rules apply when connecting the server to input feeds for redundancy.
PSUs in group A and PSUs in group B must be balanced in both quantity and
power output (A=B). If the groups are not balanced, the system will not boot.
As an example, mixed wattages must be balanced:
Feed 1 (
group A
) = 900W and 1400W PSUs
Feed 2 (
group B
) = 900W and 1400W PSUs
Input power feeds for both group A and group B must be different for
redundancy. Example of a 2 PSU installation.
PSU 1 (
group A
) = Feed 1
PSU 2 (
group B
) = Feed 2
Input power feeds for both group A and group B must be different for
redundancy. Example of a 4 PSU installation.
PSU 1 (
group A
) = Feed 1
PSU 2 (
group B
) = Feed 2
PSU 3 (
group A
) = Feed 1
PSU 4 (
group B
) = Feed 2
The following illustrations depict how a x3850 X6 server should be wired for
redundancy in a 2 PSU configuration, a 4 PSU configuration, and a mixed wattage
configuration.
12
Summary of Contents for System x3950 X6
Page 39: ... 4 x 1400W PSUs AC source redundant N N 200V 220V North America 39 ...
Page 43: ... 4 x 1400W PSUs power supply redundant N 1 200V 220V North America 43 ...
Page 47: ... 2 x 1400W PSUs AC source redundant N N 200V 220V North America 47 ...
Page 51: ... 2 x 1400W PSUs power supply redundant N 1 200V 220V North America 51 ...
Page 53: ... 2 x 1400W PSUs power supply redundant N 1 220V 240V International 53 ...
Page 56: ... 1 x 1400W PSUs non redundant N 200V 220V North America 56 ...
Page 61: ... 4 x 900W PSUs AC source redundant N N 200V 220V North America 61 ...
Page 65: ... 4 x 900W PSUs power supply redundant N 1 200V 220V North America 65 ...
Page 69: ... 2 x 900W PSUs AC source redundant N N 200V 220V North America 69 ...
Page 73: ... 2 x 900W PSUs power supply redundant N 1 200V 220V North America 73 ...
Page 77: ... 1 x 900W PSUs non redundant N 200V 220V North America 77 ...
Page 82: ... 2 x 900W 2 x 1400W PSUs AC source redundant N N 200V 220V North America 82 ...
Page 97: ... IEC 320 Connectors 97 ...
Page 99: ... IEC 309 Pin Sleeve Plug Decode 99 ...
Page 101: ... 50A Three Phase Delta Power Calculations 30A Three Phase Delta Power Calculations 101 ...
Page 102: ... 32A Three Phase Delta Power Calculations 16A Three Phase Delta Power Calculations 102 ...
Page 104: ... Support 104 ...