Manually running the SNMP subagent

29

Subagent log file

29

Using the SNMP sample config files

30

Enabling SNMP test mode

30

Troubleshooting SNMP

33

Supported SNMP MIB fields

33

Maintenance

35

Maintenance tools

35

Device LED indicators

35

HP IO Accelerator Management Tool

35

Command-line utilities

35

Enabling PCIe power override

36

Enabling the override parameter

37

Common maintenance tasks

37

Unloading the IO Accelerator driver

38

Uninstalling the IO Accelerator driver RPM package

38

Uninstalling the IO Accelerator Utilities, IO Accelerator Management Tool 2.x, and other support packages

...................................................................................................................................................

38

Disabling auto attach

38

Unmanaged shutdown issues

39

Disabling the driver

39

Utilities

40

Utilities reference

40

fio-attach

40

fio-beacon

41

fio-bugreport

41

fio-detach

42

fio-format

43

fio-pci-check

44

fio-snmp-agentx

45

fio-status

45

fio-sure-erase

47

fio-update-iodrive

49

Monitoring IO Accelerator health

52

NAND flash and component failure

52

Health metrics

52

Health monitoring techniques

53

About flashback protection technology

54

Software RAID and health monitoring

54

Performance and tuning

55

Introduction to performance and tuning

55

Disabling DVFS

55

Limiting APCI C-states

55

Setting NUMA affinity

56

Setting the interrupt handler affinity

56

NUMA configuration

57

Introduction to NUMA architecture

57

NUMA node override parameter

57

Advanced configuration example

57

Contents 4

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HP B- Accelerators Linux manual Maintenance