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Reliability, availability, and serviceability features
Three of the most important factors in server design are reliability, availability, and
serviceability (RAS). These factors help to ensure the integrity of the data stored
on your server; that your server is available when you want to use it; and that
should a failure occur, it can be easily diagnosed and repaired with minimal
inconvenience.
The following is an abbreviated list of the RAS features on the IBM xSeries 370
server. Many of these features are explained in the following chapters of this book.
Reliability features
– Cooling fans with speed-sensing capability
– ECC FSBs
– ECC L2 cache
– ECC memory
– Parity checking on the SCSI bus and PCI buses
– Power Managed - Advanced Configuration and Power Interface (ACPI)
level
– Power-on self-test (POST)
System management monitoring via Intra-Integrated Circuit (I
2
C) bus
Availability features
– Advanced Desktop Management Interface (DMI) features
– Automatic error retry/recovery
– Automatic server restart
– Automatic restart after power failure
– Built-in, menu-driven configuration programs
– Built-in, menu-driven small computer system interface (SCSI) configuration
programs
– Built-in, menu-driven setup programs
– Hot-swap hard disk drives
– Hot-plug PCI
– Hot-plug USB keyboard and mouse
– Menu-driven diagnostic programs on diskette
– Predictive Failure Analysis
(PFA) alerts
– Programmable read-only memory (PROM) based diagnostics
– Redundant and hot-plug cooling
– Redundant and hot-plug power
– ServeRAID
adapter support
– Standard Advanced System Management PCI Adapter provides control for
remote system management
– Upgradable POST, BIOS, diagnostics, and Advanced System Management
PCI Adapter microcode
– Wake on LAN capability
3
Response time will vary, depending on the number and nature of calls received.
Chapter 1. Introducing the IBM xSeries 370
5
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