HP ProLiant 1200 Eliminating Single Points of Failure and Enabling Rapid Recov - Page 11

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ECG0094/1197 Eliminating Single Points of Failure (cont.) ... Compaq Insight Manager provides detailed monitoring of the hot plug power supplies, gathering and analyzing information on many factors affecting power supply performance. Increased power capacity is recommended when necessary. Demand for more informative status/health information, more automation, and increased reliability of power supplies continues to rise. In response to that demand, Compaq developed the intelligent power supply with an embedded microcontroller and a special bus. Enhanced communication with the host system allows the intelligent power supply to provide more detailed status information than was previously possible. This increased communication, which provides status messages and alerts through Compaq Insight Manager or the Windows NT Performance Monitor, allows the system administrator to troubleshoot more effectively when problems arise and, in some cases, prevent problems or downtime from occurring. Fault tolerance features include: • Over current monitoring. • Over voltage monitoring. • Fan failure monitoring. • Power supply crowbar. • Maximum allowable temperature status reporting. The microcontroller can also be configured in one of three modes for graceful shutdown: • Secure  Power supply will not shut down if power switch is flipped. • Delay  Power supply will shut down after a 10-second delay. This allows time to reactivate the switch if it was mistakenly flipped. • Graceful shut-down  Power supply will shut down after all running applications have properly closed. Compaq's intelligent power supply can be used redundantly and is hot pluggable; when it is installed redundantly in hot plug power supply capable servers, failover is automatic. The failed unit can be replaced, and the new unit will power up automatically, without taking the system down. Compaq introduced the intelligent power supply in three high-end servers, the ProLiant 6000, 6500,and 7000, as well as the ProLiant Storage System. For more information about the Intelligent Power Supply, see technology brief ECG025.0897, Intelligent Power Supply. The Compaq UPS provides temporary power to the server in the event of a power interruption and prevents the loss of critical data by allowing the server to be gracefully shut down. Its Enhanced Battery Management feature prolongs the life of the battery while monitoring the battery's charge level to identify when it needs to be replaced. If there is a power failure when the battery charge is below an acceptable level, the server will close open files, log off users, and gracefully shut the system down. For more information about the Compaq UPS, see white paper 254A/0396, Compaq UPS Support in SAP R/3 Platforms. Cooling Server fans speed up as the temperature rises and alert the operating system through Compaq Insight Manager if the temperature approaches a critical point. Fans are available in hot-pluggable, redundant pairs as an option on the ProLiant 6000, and standard on the ProLiant 6500 and 7000. Like other hot plug components, these fans can be individually powered down and replaced in the event of a failure, while the redundant fan of the pair takes over. This helps ensure that a fan failure will not take the server down.

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Eliminating Single Points of Failure (cont.)
ECG0094/1197
Compaq Insight Manager provides detailed monitoring of the hot plug power supplies, gathering
and analyzing information on many factors affecting power supply performance. Increased power
capacity is recommended when necessary.
Demand for more informative status/health information, more automation, and increased reliability
of power supplies continues to rise. In response to that demand, Compaq developed the intelligent
power supply with an embedded microcontroller and a special bus.
Enhanced communication with the host system allows the intelligent power supply to provide more
detailed status information than was previously possible. This increased communication, which
provides status messages and alerts through Compaq Insight Manager or the Windows NT
Performance Monitor, allows the system administrator to troubleshoot more effectively when
problems arise and, in some cases, prevent problems or downtime from occurring.
Fault tolerance features include:
•
Over current monitoring.
•
Over voltage monitoring.
•
Fan failure monitoring.
•
Power supply crowbar.
•
Maximum allowable temperature status reporting.
The microcontroller can also be configured in one of three modes for graceful shutdown:
•
Secure
Power supply will not shut down if power switch is flipped.
•
Delay
Power supply will shut down after a 10-second delay. This allows time to
reactivate the switch if it was mistakenly flipped.
•
Graceful shut-down
Power supply will shut down after all running applications have
properly closed.
Compaq’s intelligent power supply can be used redundantly and is hot pluggable; when it is
installed redundantly in hot plug power supply capable servers, failover is automatic. The failed
unit can be replaced, and the new unit will power up automatically, without taking the system
down.
Compaq introduced the intelligent power supply in three high-end servers, the ProLiant 6000,
6500,and 7000, as well as the ProLiant Storage System. For more information about the Intelligent
Power Supply, see technology brief ECG025.0897,
Intelligent Power Supply
.
The Compaq UPS provides temporary power to the server in the event of a power interruption and
prevents the loss of critical data by allowing the server to be gracefully shut down. Its Enhanced
Battery Management feature prolongs the life of the battery while monitoring the battery’s charge
level to identify when it needs to be replaced. If there is a power failure when the battery charge is
below an acceptable level, the server will close open files, log off users, and gracefully shut the
system down. For more information about the Compaq UPS, see white paper 254A/0396,
Compaq
UPS Support in SAP R/3 Platforms
.
Cooling
Server fans speed up as the temperature rises and alert the operating system through Compaq
Insight Manager
if the temperature approaches a critical point. Fans are available in hot-pluggable,
redundant pairs as an option on the ProLiant 6000, and standard on the ProLiant 6500 and 7000.
Like other hot plug components, these fans can be individually powered down and replaced in the
event of a failure, while the redundant fan of the pair takes over. This helps ensure that a fan failure
will not take the server down.
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