Toshiba Magnia 7010 - Manual (Page 87)

Installing Hardware
Adding or removing a power supply
71
CAUTION: Do not use the power supply handles to lift the entire server.
Using them in this manner may damage the power supply.
Normally, you need to turn off the machine and remove the AC cable before
replacing a power supply, but the Magnia7010 has hot-swappable power supply
units, enabling you to replace a power supply without having to shut down the
system.
NOTE: The Magnia7010 requires at least two power supplies to permit hot
swapping.
If the server has fewer than two CPUs or fewer than six disk drives, it requires a
minimum of two power supplies and may have one additional redundant power
supply.
If the server has seven or more disk drives, it requires a minimum of three
power supplies and may have one additional redundant power supply.
If the server has three or more CPUs, it requires a minimum of three power
supplies and may have one additional redundant power supply.
Type of LED State Meaning
AC on Off Power is off (no AC input)
Green Power is on (normal operation)
Alarm Off Normal operation
Red Power supply fault
Unit has failed.
Power supply requirements
Condition
No. of
CPUs No. of
HDDs
Minimum
supplies
required
Redundant
supplies
Total
supplies
A * 1 to 2 0 to 6 2 1 3
B N/A 7 to 12 3 1 4
C 3 to 4 N/A 3 1 4
*If you are in condition A, you cannot have four power supplies
*If you are in condition B, or C, you cannot have four power supplies