HP IO manual Fio-trim-config

Page 51

Option

Description

 

 

-p

Purge instead of Clear: Performs a write followed by an erase. Purging the device might take

 

several hours to complete, depending on the size of the device.

-y

No confirmation: Does not require a yes/no response to execute the utility.

-q

Quiet: Do not display the status bar.

Clear support

A Clear is the default state of running fio-sure-erase(with no options), and is the act of performing full low-level erase (every cell pushed to 1) of the entire NAND media, including retired erase blocks.

Metadata that is required for operation will not be destroyed (media event log, erase counts, physical bytes read/written, performance and thermal history), but any user-specific metadata will be destroyed.

A Clear operation performs the following:

1.Creates a unity map of every addressable block (this allows fio-sure-eraseto address every block, including previously unmapped bad blocks).

2.Performs an erase cycle for each block (every cell is pushed to 1).

3.Restores the bad block map.

4.Formats the device to make the device usable again. The utility erases all of the headers during the clear.

Purge support

A Purge operation is implemented by using the -poption with fio-sure-erase. Purge is the act of first overwriting the entire NAND media (including retired erase blocks) with a single character (every cell written to logical 0), and then performing a full chip erase (every cell pushed to 1) across all media (including retired erase blocks).

Metadata that is required for operation will not be destroyed (media event log, erase counts, physical bytes read/written, performance and thermal history), but any user-specific metadata will be destroyed.

A Purge operation performs the following:

1.Creates a unity map of every addressable block (this allows fio-sure-eraseto address every block, including previously unmapped bad blocks).

2.Performs a write cycle for each block (every cell written to 0).

3.Performs an erase cycle for each block (every cell pushed to 1).

4.Restores the bad block map.

5.Formats the drive to make the drive usable again. The utility erases all of the headers during the clear.

fio-trim-config

Description

Enables or disables the Trim feature, which reclaims available space from the file system. It is generally recommended that Trim be enabled for best performance. TRIM is enabled by default. Running this utility with no options displays the current Trim status. For more information, see "Trim support (on page 57)."

NOTE: This utility affects all IO Accelerators in the system. You cannot enable or disable Trim for only selected devices.

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Contents HP IO Accelerator Version 3.2.3 Windows User Guide Page Contents Maintenance Resources About this guide Contents summaryIntroduction OverviewProduct naming IO Accelerator capacity 320GB 640GB Models AJ878B BK836A Performance attributesRequired operating environment Supported firmware revisionsSupported hardware Page Introduction Installation overview Uninstalling a previously-installed driverWindows Server environments Installing software on a Windows operating system Using the Setup Wizard Windows Server environments Windows Server environments Windows Server environments Windows Server environments Upgrading device firmware from VSL 1.x.x or 2.x.x to Fio-bugreport Upgrading procedureFio-update-iodrive iodriveversion.fff Manual installation on Windows ServerManually installing on Windows Server Viewing the firmware version Upgrading the device firmware using WindowsManually installing on Windows Server 2008 Performing the upgradeFio-detach /dev/fct0 Upgrading driver software using WindowsWindows Server environments Silent install option DefragmentationOutdated firmware check IO Accelerator naming Enabling PCIe powerWindows Server environments Snmp details for Windows operating systems Creating a RAID configurationSetting up Snmp for Windows operating systems Fio-config -p Fiopreallocatememory 1072,4997,6710,10345Via garbage collection Using test mode registry valuesSnmp test registry entry Description Snmp MIB fields supporting Windows ServerWindows Server environments Using installation logs Windows Installer logging optionsMsiexec /i C\MyPackage\Example.msi /L*V C\log\example.log Creating an installation log Creating an uninstall logCreating a patch install log Troubleshooting event log messages Automated logging with the Windows Installer Logging PolicyError ioDrivex Uninstalling the IO Accelerator driver package MaintenanceMaintenance tools Common maintenance tasksEnabling PCIe power override Unmanaged shutdown issuesEnabling Autoattach Enabling the override parameter Fio-config /dev/fct2 -p PCIeGLOBALSLOTPOWERLIMIT Fio-config /dev/fctx -p PCIeGLOBALSLOTPOWERLIMITUtilities Utilities referenceFio-attach Fio-beacon device options Fio-beaconFio-bugreport Fio-attach device optionsFio-config Fio-config device optionsCompressing Fioexternalpoweroverride Fio-config optionsFio-detach device options Fio-detachFio-format device options device Fio-formatFio-status device options Fio-pci-checkFio-status Fio-pci-check options OptionsFfield Geometry and capacity information not available. appears Fio-sure-erase options device Fio-sure-eraseFio-trim-config Fio-update-iodrive Fio-trim-config options OptionsFio-update-iodrive iodriveversion.fff options Format domainbusslot.func Health monitoring techniques Monitoring IO Accelerator healthNand flash and component failure Health metricsSoftware RAID and health monitoring Flashback substitution eventsMonitoring IO Accelerator health Trim platforms Using TrimTrim support Introduction to TrimStarting and stopping Trim Enabling TrimControlling Trim aggressiveness Trim configurations RAM consumption Using Windows page files with the IO AcceleratorConfiguring IO Accelerator paging support Introduction to Windows page filesNon-paged memory pool Fio-config -p Fiopreallocatememory 1234,17834Fio-config -p Fiopreallocatememory Fio-config -g FiopreallocatememoryWindows page file management Setting up page filesGuaranteeing minimum committable memory System drive paging file configurationVirtual Memory performance Verifying page file operationDir c /ah Limiting Apci C-states Performance and tuningIntroduction to performance and tuning Disabling DvfsSetting the interrupt handler affinity Setting Numa affinityFioaffinity parameter Numa configurationFio-config -p Fioaffinity 4,n1,0xf5,n07,g19,g2,0xff0 Introduction to Numa architectureAdvanced configuration example Fio-config -p Fioaffinity 5,g0,0xf6,0xf Checking the log for errorsSubscription service ResourcesFor more information Customer Self Repair Support and other resourcesBefore you contact HP HP contact informationRéparation par le client CSR Riparazione da parte del cliente Reparaciones del propio cliente Reparo feito pelo cliente Support and other resources Support and other resources Support and other resources Safety and regulatory compliance Warranty informationRegulatory information Numa Acronyms and abbreviationsSMI-S Documentation feedback Index Using the IO Accelerator as a swap
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