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Sun Fire 880 Server Product Notes 25
Hot-plug function is not disabled when only one
power supply exists (BugID 4408237)
A Sun Fire 880 system with only one working power supply is an unsupported
configuration. A system configured with the minimum two power supplies (the
non-redundant configuration) may shut down abruptly if either power supply fails.
However, on a system with only two power supplies, if one power supply fails, the
system may continue operating with only one functional power supply. In this
degraded state, if you then attempt to add a PCI card through a hot-plug operation,
the additional power demands of the card may exceed the capacity of a single
supply, resulting in an immediate system shutdown. The Solaris 8 7/01 operating
environment does not recognize a Sun Fire 880 configuration with one power supply
and does not inhibit PCI hot-plug operations under these circumstances. Installation
of an optional third power supply enables the system to remain fully operational
should any single supply fail.
CE memory reporting is ambiguous
(BugID 4491362)
On a Sun Fire 880 system running the Solaris 8 07/01 or 8 10/01 operating system, if
a dual inline memory module (DIMM) encounters a ce error, Solaris will not
identify the correct CPU/Memory board that the failing DIMM resides on. Solaris
reports the correct DIMM location within the CPU/Memory board, but Solaris does
not identify which CPU/Memory board in the system that the failing DIMM resides
on.
Workaround – To correctly identify the failing DIMM, use the following procedure.
1. Bring the system to the ok prompt.
a. Place the security keyswitch to the Diagnostics position.
This forces the system to run POST and OpenBoot diagnostics during system
startup.
b. Press and release the system Power button.
Pressing the Power button initiates a graceful software system shutdown.
c. After the system has powered off, wait at least 30 seconds. Then power on the
system by pressing the system Power button.
When the system initiates the startup sequence with the keyswitch in the
Diagnostics position, it will run POST and OpenBoot diagnostics tests during system
startup. For more information about POST and OpenBoot, see “Diagnostics and
Troubleshooting” in the Sun Fire 880 Server Service Manual.