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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