Specifications

DS300f G2 Series User Manual
154
ManaGInG baCkGround aCtIvIty (Clu)
Background activity refers to any of several functions that take place in the background while normal operation
of the ASUS DS300f G2 continues.
Background activities work in conjunction with disk arrays and logical drives. See Managing Disk Arrays (CLU)
and Managing Logical Drives (CLU) for more information about how and when to use background activities.
Background Activity Management includes the following functions:
• "Viewing Current Background Activities (CLU)" on page 154
• "Making Background Activity Settings (CLU)" on page 154
vIewInG current backGrounD actIvItIeS (clu)
From the Main Menu, highlight Background Activities and press Enter. A count of current background activities
appears, including:
• Rebuild
• PDM (Predictive Data Migration)
• Synchronization
• Redundancy Check
• Migration
• Transition
• Initialization
• Media Patrol
makInG backGrounD actIvIty SettInGS (clu)
1. From the Main Menu, highlight Background Activities and press Enter.
2. Highlight Background Activity Settings and press Enter.
3. Highlight following and press the spacebar to toggle between Enabled and Disabled.
• Media Patrol
–Checksthemagneticmediaonphysicaldrives
• Auto Rebuild–Whenenabledandnosparedriveisavailable,thediskarraybeginstorebuildassoon
asyoureplacethefailedphysicaldrivewithanunconguredphysicaldriveofequalorgreatersize
4. Highlight following and press the spacebar to toggle through Low, Medium, and High rates:
• Rebuild
–Rebuildsdatatoareplacementphysicaldriveinadiskarray
• Migration–ChangeRAIDleveloraddphysicaldrivestodiskarrays
• PDM–Migratesdatafromasuspectphysicaldrivetoareplacementdriveinadiskarray
• Transition–Returnsarevertiblesparedrivetosparestatus
• Synchronization–Checksthedataintegrityondiskarrays
• Initialization–Fullinitializationsetsalldatabitsinthelogical
drivetoaspeciedpattern,suchasallzeros
• Redundancy Check–Checks,reportsandcancorrectdatainconsistenciesinlogicaldrives
Theratesaredenedasfollows:
• Low–Fewerresourcestoactivity,moretodataread/write.
• Medium–Balanceofresourcestoactivityanddataread/write.
• High–Moreresourcestoactivity,fewertodataread/write.
5. Highlight the following PDM trigger settings and press the backspace key to erase the current value:
• BBM Threshold
–1to2048reassignedblocks
• Media Patrol Threshold –1to2048errorblocks
6. Press Control-A to save your settings.