18 IBM BladeCenter JS23 and JS43 Implementation Guide
– Automatic service processor reset and reload recovery for service
processor errors
– Automatic server recovery and restart that provides automatic reboot after
boot hangs or detection of checkstop conditions
– Automatic server restart (ASR)
– Built-in monitoring for temperature, voltage, hard disk drives, and flash
drives
– Checkstop analysis
– Customer-upgradeable basic input/output system (BIOS) code (firmware
code)
– Degraded boot support (memory and microprocessors)
– Extended Error Handling (EEH) for adapter failures
– Emergency power off (EPOW) for the blade server and expansion cards
– Environmental monitors and alerts
– First Failure Data Capture (FFDC) for determining failure root cause
– Service processor communication with the management module to enable
remote blade server management
– Light emitting diodes (LEDs) for identifying failing customer replaceable
units
– Light path diagnostics
– POWER6 Hypervisor (PHYP) partition recovery or partition termination
when unrecoverable errors occur
– Power-on self-test (POST)
– Vital product data (VPD) unique identifiers on blade server and all major
electronic components with information stored in nonvolatile memory for
remote viewing
2.4 Physical specifications BladeCenter JS23
The next sections will provide more details related to the features of the JS23
and JS43 blade servers.
2.4.1 Minimal and optional features of BladeCenter JS23
The BladeCenter JS23 blade is based on a modular design of two
dual-core-modules (DCM) that contain 64-bit POWER6 processors and
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