Specifications

Chapter 4. Continuous availability and manageability 141
Draft Document for Review May 12, 2014 12:46 pm 5102ch04.fm
4.7 Operating system support for RAS features
Table 4-2 gives an overview of features for continuous availability that are supported by the
various operating systems running on power systems. In the table, the word “Most” means
most functions.
Table 4-2 Operating system support for RAS features
RAS feature AIX 6.1 AIX 7.1 RHEL 6.5 SLES11 SP3
System deallocation of failing components
Processor Fabric Bus Protection X X X X
Dynamic Processor Deallocation X X X X
Dynamic Processor Sparing X X X X
Processor Instruction Retry X X X X
Alternate Processor Recovery X X X X
Partition Contained Checkstop X X X X
Persistent processor deallocation X X X X
Optional ECC I/O hub with freeze behavior X X X X
PCI bus extended error detection X X X X
PCI bus extended error recovery X X Most Most
PCI-PCI bridge Enhanced Error Handling X X - -
PCI card hot-swap X X X X
Memory sparing with CoD at IPL time X X X X
Memory availability
ECC memory, L2, L3 cache X X X X
CRC plus retry on memory data bus X X X X
Data Bus X X X X
Dynamic memory channel repair X X X X
Processor memory controller memory
scrubbing
XX X X
Memory page deallocation X X X X
Chipkill memory X X X X
L1 instruction and data array protection X X X X
L2/L3 ECC and cache line delete X X X X
Special uncorrectable error handling X X X X
Memory Buffer L4 Cache X X X X
Fault detection and isolation
Platform FFDC diagnostics X X X X