4.3 Enabling/Disabling Dual Power Feed
4.3 Enabling/Disabling Dual Power Feed
Four power supply units are mounted on the SPARC M12-2/M12-2S. For dual power systems, each system has two power supply units.
e.g., PSU#0/PSU#1 for power system 0, PSU#2/PSU#3 for power system 1
When the dual power feed is enabled/disabled, the PSU status and system operation are as shown in Table 4-1.
e.g., PSU#0/PSU#1 for power system 0, PSU#2/PSU#3 for power system 1
When the dual power feed is enabled/disabled, the PSU status and system operation are as shown in Table 4-1.
Dual Power Feed Setting | PSU Status | System Operation |
---|---|---|
Disabled | 2 or more operating PSUs |
Operable |
No more than 1 operating PSU | Non-operable | |
Enabled | 2 operating PSUs on at least 1 of power systems |
Operable |
No more than 1 operating PSU on both power systems | Non-operable |
Two power supply units (PSUs) are mounted on the SPARC M10 and SPARC M12-1. Since PSUs are redundant, the system can operate as long as at least one PSU is operating. Therefore, even if the dual power feed function is enabled/disabled, it does not affect the system operation.
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