Specifications

DS300f G2 Series User Manual
59
4. Click the Advanced Information tab.
Advanced controller information includes:
•
Slot1MemoryType
• Slot2MemoryType
• LUNAfnity*
• ControllerRole
• FlashSize
• NVRAMSize
• Coercion*
• SMART*
• WriteBackCacheFlushInterval*
• AdaptiveWritebackCache*
• ForcedReadAhead(cache)*
• PowerSavingStandbyTime*
• CacheLineSize
• BackupFlashStatus
• Slot1MemorySize
• Slot2MemorySize
• ALUA*
• FlashType
• NVRAMType
• PreferredCacheLineSize
• CoercionMethod*
• SMARTPollingInterval*
• EnclosurePollingInterval*
• HostCacheFlushing*
• PowerSavingIdleTime*
• PowerSavingStoppedTime*
• AdvancedBatteryFlash
BackupEnabled*
• BackupFlashSize
Items with an asterisk (*) are adjustable under Controller Settings.
makInG controller SettInGS
Inadual-controllerRAIDsubsystem,settingsmadetoonecontroller are applied to both controllers.
To make controller settings:
1. Click the Device tab.
2. Click the Component List icon.
3. Clickthecontrolleryouwant,thenclicktheSettings button.
4. Make settings changes as required:
•
Enter,changeordeletethealiasintheAliaseld.
• LUNAfnity–Chooseanenable/disableoptionfromthedrop-downmenu.
RAIDcontrollersmustbesettoActive-Active.See"MakingSubsystemSettings"onpage54and
"LUNAfnity"onpage<?>.
• ALUA
–Chooseanenable/disableoptionfromthedrop-downmenu.
RAIDcontrollersmustbesettoActive-Active.SeeMakingSubsystemSettingsand“ALUA”on
page251.
• SMARTLog–Checktheboxtoenableorunchecktodisable.
• SMARTPollingInterval–Enteravalueintotheeld,1to1440minutes
• HDDPowerSaving–Choosetimeperiodsfromthedrop-downmenus.
AfteranHDDhasbeenidleforthesetperiodoftime:
PowerSavingIdleTime–Parkstheread/writeheads.
PowerSavingStandbyTime–Lowersdiskrotationspeed.
PowerSavingStoppedTime–Spinsdownthedisk(stopsrotation).
• Coercion–Checktheboxtoenableorunchecktodisable.
• CoercionMethod–Chooseamethodfromthedrop-downmenu:
GBTruncate
10GBTruncate
GrpRounding
TableRounding
• WriteBackCacheFlushInterval–Enteravalueintotheeld,1to12seconds.
• EnclosurePollingInterval–15to255seconds.
• AdaptiveWritebackCache–Checktheboxtoenableoruncheckto
disable.See"AdaptiveWritebackCache"onpage<?>.
•
HostCacheFlushing–Checktheboxtoenableoruncheckto
disable.See"HostCacheFlushing"onpage<?>.
• ForcedReadAhead(cache)–Checktheboxtoenableoruncheckto
disable.See"ForcedRead-AheadCache"onpage<?>.
•
AdvancedBatteryFlashBackup-Checktheboxtoenableoruncheckto
disable.See"AdvancedBatteryFlashBackup"onpage<?>.
5. Click the Save button.
Notes
Power Management must be enabled on the disk array for the HDD Power Saving settings
to be effective. See "Making Disk Array Settings" on page 93
Power Management functions are limited to the features your HDDs actually support.