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HP IO Accelerator for BladeSystem c-Class User Manual

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Contents 4

Maintenance .............................................................................................................................. 37

Maintenance tools ................................................................................................................................... 37

Common maintenance tasks ..................................................................................................................... 37

Uninstalling the IO Accelerator driver package.................................................................................. 37

Disabling AutoAttach ..................................................................................................................... 37

Enabling Autoattach ...................................................................................................................... 38

Unmanaged shutdown issues .......................................................................................................... 38

Enabling PCIe power override .................................................................................................................. 38

Enabling the override parameter ..................................................................................................... 39

Utilities ...................................................................................................................................... 41

Utilities reference ..................................................................................................................................... 41

fio-attach ................................................................................................................................................ 41

fio-beacon .............................................................................................................................................. 42

fio-bugreport ........................................................................................................................................... 42

fio-config ................................................................................................................................................ 43

fio-config options ........................................................................................................................... 44

fio-detach ............................................................................................................................................... 45

fio-format ............................................................................................................................................... 46

fio-pci-check ........................................................................................................................................... 47

fio-status ................................................................................................................................................. 47

fio-sure-erase .......................................................................................................................................... 50

fio-trim-config .......................................................................................................................................... 51

fio-update-iodrive .................................................................................................................................... 52

Monitoring IO Accelerator health ................................................................................................. 54

NAND flash and component failure ........................................................................................................... 54

Health metrics ......................................................................................................................................... 54

Health monitoring techniques .................................................................................................................... 54

Flashback substitution events ..................................................................................................................... 55

Software RAID and health monitoring ........................................................................................................ 55

Trim support ............................................................................................................................... 57

Introduction to Trim .................................................................................................................................. 57

Trim platforms ......................................................................................................................................... 57

Using Trim .............................................................................................................................................. 57

Starting and stopping Trim .............................................................................................................. 58

Enabling Trim ................................................................................................................................ 58

Controlling Trim aggressiveness....................................................................................................... 58

Trim configurations .................................................................................................................................. 59

Using Windows page files with the IO Accelerator ......................................................................... 60

Introduction to Windows page files ........................................................................................................... 60

Configuring IO Accelerator paging support ................................................................................................ 60

RAM consumption ......................................................................................................................... 60

Non-paged memory pool ............................................................................................................... 61

Enabling and disabling paging support ............................................................................................ 61

Windows page file management ............................................................................................................... 62

Setting up page files ...................................................................................................................... 62

System drive paging file configuration .............................................................................................. 63

Guaranteeing minimum committable memory .................................................................................... 63

Verifying page file operation .......................................................................................................... 64

Virtual Memory performance .................................................................................................................... 64

Performance and tuning ............................................................................................................... 65

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