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Each blade server is powered by two Enterprise Voltage Regulator-Down (EVRD) 11.0 voltage regulators.
By enforcing a power policy known as power-domain oversubscription, the BladeCenter unit can share
the power load between two power modules to ensure sufficient power for each device in the BladeCenter
unit. This policy is enforced when the initial power is applied to the BladeCenter unit or when a blade
server is inserted into the BladeCenter unit.
The following settings for this policy are available:
– Redundant without performance impact
– Redundant with performance impact
– Nonredundant
You can configure and monitor the power environment by using the Advanced Management Module. For
more information about configuring and using power throttling, see the Advanced-Management-Module
documentation or http://www.ibm.com/systems/support/.
Reliability, availability, and serviceability features
Reliability, availability, and serviceability features help to ensure the integrity of the data that is stored in
the blade server, the availability of the blade server when you need it, and the ease with which you can
diagnose and correct problems.
Three of the most important features in server design are reliability, availability, and serviceability (RAS).
These RAS features help to ensure the integrity of the data that is stored in the blade server, the availability
of the blade server when you need it, and the ease with which you can diagnose and correct problems.
The blade server has the following RAS features:
• Customer upgrade of Flash ROM-resident code and diagnostics
• Power Policy 24-hour support center
• VPD on Memory
• Processor presence detect
• Advanced Configuration and Power Interface (ACPI)
• Automatic server restart (ASR)
• Built-in monitoring for temperature, voltage, and hard disk drives
• Customer support center 24 hours per day, 7 days a week.
• Customer-upgradeable Unified Extensible Firmware Interface (UEFI) code and diagnostics
• Diagnostic support of Ethernet controllers
• ECC protection on the L2 cache
• Error codes and messages
• Hot-swap SAS storage drives
• Integrated Management Module (IMM)
• Light path diagnostics feature
• Memory parity testing
• Registered ECC DDR3 memory
• Microprocessor built-in self-test (BIST) during power-on self-test (POST)
• Microprocessor serial number access
• PCI PMI 2.2
• PCI Express 1.0a
• POST
• ROM resident diagnostics
• Service processor that communicates with the Advanced Management Module to enable remote blade
server management
1.
Service availability will vary by country. Response time will vary depending on the number and nature of incoming
calls.
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BladeCenter HS22 Blade ServerInstallation and User's Guide
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