Power Supply Memory Latch Function; System Software Requirements - Sun Microsystems Ultra Enterprise 450 Produkthinweise

Power Supply Memory Latch Function

The Ultra Enterprise 450 power supply has a memory latch function that allows the
power supply to "remember" its last power on/off state in response to a power
outage or removal of the AC power cord. This feature allows the power supply to
resume operation automatically once power is restored. It also enables hot-swapping
of power supplies.
Under some circumstances, this feature can be misdiagnosed as a power supply
failure. If you remove a power supply from a system that is powered off and attempt
a hot-plug installation into a system that is powered on, the power supply will
remain in the Off state. This should not be interpreted as a power supply failure.
To activate the power supply, simply turn the front panel keyswitch from the
Power-On position to the Diagnostics position, and then back to the Power-On
position. Alternatively, you may press the Power-On key on a Sun™ Type-5
keyboard attached to the system.

System Software Requirements

The Ultra Enterprise 450 server requires Solaris™ 2.5.1 Hardware: 11/97, Solaris 2.6
Hardware: 3/98, Solaris 7, or a subsequent compatible Solaris release. To verify that
the proper version of the operating environment is installed on your Ultra Enterprise
450 server, examine the file /etc/release. The file should, for example, contain the
text "Solaris 2.5.1 Hardware: 11/97" or it should identify a later compatible Solaris
release.
Any patches required for your Solaris software release can be found at the
SunSolve Online SM web site at the URL:
http://sunsolve.Sun.COM/
1-6 Ultra Enterprise 450 Server Product Notes • June 1999