IBM XIV Gen3 Series, Planning Manual

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Table 27. Temperature thresholds and events for systems running microcode version 11.6 or later
Temperature
threshold
Event Description
27°C (80°F) SYSTEM_TEMPERATURE_IS_OK_NOW No action required. This event is
generated only when the normal
system temperature is recovered from a
higher temperature.
28°C (82.4°F) SYSTEM_TEMPERATURE_IS_ABOVE_NORMAL Check whether there is a problem that
affects the data center temperature or
the system temperature.
30°C (86°F) SYSTEM_TEMPERATURE_IS_HIGH System should be closely monitored,
and action to cool down the system is
recommended.
32°C (89.6°F) SYSTEM_TEMPERATURE_IS_TOO_HIGH Actions to cool down the system must
be taken immediately.
35°C (95°F) SYSTEM_TEMPERATURE_IS_CRITICALLY_HIGH Manually shutdown the system by
using the
shutdown command.
45°C (113°F) SYSTEM_TEMPERATURE_IS_CRITICALLY_HIGH_
SHUTTING_DOWN If automatic shutdown is enabled:
Automatic system shutdown is in
progress.
Table 28. Temperature thresholds and events for systems running microcode versions 11.0–11.5
Temperature
threshold
Event Description
29°C (80°F) SYSTEM_TEMPERATURE_IS_OK_NOW No action required.
33°C (82.4°F) SYSTEM_TEMPERATURE_HIGH System should be closely monitored
and, if possible, take action to cool
down.
35°C (95°F) SYSTEM_TEMPERATURE_IS_TOO_HIGH Actions to cool down the system must
be taken.
45°C (113°F) SYSTEM_TEMPERATURE_IS_CRITICALLY_HIGH Manually shutdown the system by
using the
shutdown command.
Contamination information
You must consider the air quality and contamination levels at your installation site.
Airborne particulates (including metal flakes or particles) and reactive gases acting
alone or in combination with other environmental factors, such as humidity or
temperature, might pose a risk to the IBM XIV Storage System hardware. Risks
that are posed by the presence of excessive particulate levels or concentrations of
harmful gases include damage that might cause the XIV system to malfunction or
cease functioning altogether. This specification describes limits for particulates and
gases that are intended to avoid such damage. The limits must not be viewed or
used as definitive limits because numerous other factors, such as temperature or
moisture content of the air, can influence the impact of particulates or
environmental corrosives and gaseous contaminant transfer.
In the absence of specific limits, implement practices that maintain particulate or
gas levels that are consistent with the protection of human health and safety. If
IBM determines that the levels of particulates or gases in your environment
damaged the XIV system, IBM might require implementation of appropriate
Chapter 6. Installation site requirements
45