Reliability, Availability, And Serviceability Features; System-Board Components And Connectors - IBM BladeCenter QS20 Problem Determination And Service Manual

Note: Power, cooling, removable-media drives, external ports, and advanced
Table 1. Blade server features and specifications
Microprocessor:
Two IBM Cell Broadband Engines
®
PowerPC 64-bit architecture w/VMX
with 8 SPUs, 512 KB L2 cache, 256
KB on each SPE.
Memory: 2 x 256 MB or 2 x 512 MB
XDR DRAM with ECC. (Only
configuration supported.)
IDE device: Support for one internal
integrated drive electronics (IDE) 2.5
inch hard disk drive.

Reliability, availability, and serviceability features

Three important features in server design are reliability, availability, and
serviceability (RAS). These RAS features are designed to help you protect the
integrity of the data stored on your blade server; help ensure that your blade server
is available when you want to use it; and, in the event of a failure, help you easily
diagnose and repair the failure with minimal inconvenience.
The following is a list of some of the RAS features that your blade server supports:
v Automatic error retry or recovery
v Automatic server restart
v Built-in monitoring for temperature, voltage, and hard disk drives
v Customer-upgradeable system firmware code
v Diagnostic support of Ethernet controller ports
v Error codes and messages
v Error correcting code (ECC) protection on the Level 2 (L2) cache
v ECC memory
v Service processor that communicates with the BladeCenter Management Module
v SDRAM with serial presence detect (SPD) and vital product data (VPD)
v System error logging
v VPD (includes information stored in nonvolatile memory for easier remote

System-board components and connectors

The following illustration shows the location of the system-board components,
including connectors for user-installable options.
Note: The illustrations in this document might differ slightly from your hardware.
4
BladeCenter QS20 Type 0200: Problem Determination and Service Guide
system management are provided by the IBM BladeCenter Type 8677. For
more information, see the IBM BladeCenter (Type 8677) Planning and
Installation Guide.
Size:
v Height: 24.5 cm (9.7 inches)
v Depth: 44.6 cm (17.6 inches)
v Width: 5.8 cm (2.28 inches)
v Maximum weight: 6 kg (13.2 lb)
Integrated functions:
v Two 1 Gigabit Ethernet controllers
v Local service processor
v One IDE hard disk drive controller
with one channel
v RS-485 interface for
communication with BladeCenter
Management Module
to enable remote blade server management
viewing)
Environment:
v Air temperature:
– Operating temperature: maximum
25°C (77°F). Altitude: 0 to 914 m
(0 to 3000 ft)
– Operating temperature: maximum
25°C (77°F). Altitude: 914 m to
2133 m (3000 ft to 7000 ft)
– Storage temperature: -40° to
60°C (-40° to 140° F)
v Humidity:
– Operating temperature: 8% to
80%
– Storage temperature: 5% to 80%