Intel Server Management (ISM) Installation and User's Guide, Version 5.5.5 - HP Carrier-Grade Server cc3310

Intel Server Management (ISM) Installation and User's Guide
Client SSU (CSSU) Details
PIC monitors two types of fans:
• Rotation-sensing fans—not used in the HP Server cc3310PIC can detect whether a fan has stopped but is
not able to indicate which fan has failed. These fans, together, are treated as a single fan unit. Therefore,
event actions must be configured for all fans together, rather than separately.
• RPM-sensing fans—PIC can detect whether an individual fan has either slowed or stopped and it
displays the actual fan RPM value for systems that support this feature. Each RPM-sensing fan is
independently configurable with its own threshold and event actions.
If a rotation-sensing fan fails or an RPM-sensing fan crosses a threshold, PIC displays the event as a critical
condition via the health branch of the software, and the requested event actions are carried out.
• Cooling Unit redundant fan arrays—PIC can display fan redundancy status for systems equipped with
multiple redundant fans in a cooling unit. Refer to Table 4-2 for a list of cooling unit states and their
meanings.
Table 4-2 Fan Redundancy Status
Fully Redundant The cooling unit is fully redundant. No severity
Redundancy Lost The unit has lost redundancy. Critical
Redundancy Degraded The unit is still redundant, but not fully
redundant.
Noncritical
Nonredundant Sufficient Resources
From Redundant
Redundancy has been lost, but the unit still has
enough fan resources to operate normally. This
state is entered when one or more fans are lost.
Critical
Nonredundant Sufficient Resources
From Insufficient Resources
The unit has regained enough fan resources to
once again operate normally, but is still not fully
redundant. This state is entered when one or
more fans are regained.
Critical
Nonredundant Insufficient Resources The unit is nonredundant and has insufficient
fan resources to maintain normal operation.
Critical
Redundancy Degraded From Fully
Redundant
The unit has lost some fan resources, but is still
in a redundant state. This state is entered when
one or more fans are lost.
Noncritical
Redundancy Degraded From
Nonredundant
The unit has regained some fan resources and is
redundant, but not fully redundant. This state is
entered when one or more fans are regained.
Noncritical
For example, consider a system that requires five fans for full redundancy, but operates normally with four
fans. If one fan fails, the cooling unit status is shown as Nonredundant Sufficient Resources From
Redundant, because a fan was lost. If another fan fails, leaving three fans operational, the status becomes
Nonredundant Insufficient Resources. When one of the two failed fans resumes working, the status becomes
Nonredundant Sufficient Resources From Insufficient Resources, because a fan was regained.
Hot-Swap Fans
For systems that support hot-swap fans (fans that can be removed and reinserted while the system is
running), PIC displays the fan status ordered by the system’s fan slot number. If a fan is removed, PIC sends
an alert message to the managing console, as shown below.