Serviceability - IBM Power 750 Technical Overview And Introduction

Linux, EEH support extends to the majority of frequently used devices, although various
third-party PCI devices might not provide native EEH support.
To detect and correct PCIe bus errors, POWER7+ processor-based systems use CRC
detection and instruction retry correction; for PCI-X they use ECC.
Figure 4-2 shows the location and various mechanisms used throughout the I/O subsystem
for PCI Enhanced Error Handling.
PCI-X
Bridge
Parity error
PCI Bridge Enhanced
Error Handling
Figure 4-2 PCI Enhanced Error Handling

4.3 Serviceability

IBM Power Systems design considers both IBM and the client's needs. The IBM Serviceability
Team has enhanced the base service capabilities and continues to implement a strategy that
incorporates best-of-its-kind service characteristics from diverse IBM Systems offerings.
The purpose of serviceability is to repair the system while attempting to minimize or eliminate
service cost (within budget objectives), and while maintaining high customer satisfaction.
Serviceability includes system installation, MES (system upgrades/downgrades), and system
maintenance/repair. Depending upon the system and warranty contract, service may be
performed by the customer, an IBM representative, or an authorized warranty service
provider.
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IBM Power 750 and 760 Technical Overview and Introduction
POWER7+
GX+ / GX++ bus
12X Channel
Hub
12x channel failover
PCI-X
Bridge
PCI-X to PCI-X
Parity error
PCI-X
Adapter
adapter
support
12X Channel –
PCI Bus Enhanced Error
Handling
I/O drawer concurrent add
POWER7+
12X Channel
Hub
PCIe Bridge
CRC with
retry or ECC
PCIe
Adapter