5. RAID System ConfigurationExpress5800/R120f-2E, T120f Maintenance Guide124Chapter 2 Useful Features Virtual Drive Operation of Virtual Drive Virtual Drives Select Virtual Drive (if two or more Virtual Drives exist) Initialize Initialize Virtual Drive Check Consistency Check consistency of Virtual Drive View/Update Parameters Display Virtual Drive information• RAID Display RAID level• SIZE Display Virtual Drive size• Stripe SIZE Display Stripe size• #Stripes Display number of physical devices included in Virtual Drive• State Display Virtual Drive status• Spans Display setting of Virtual Drive• Disk WC Display Write Cache Policy of Virtual Drive• Read Ahead Display Read Ahead Policy of Virtual Drive Physical Drive Operation of physical drive Physical Drive Selection Menu Select a physical drive Make HotSpare Specify hot-spare disk used for Auto Rebuild Force Online Forcibly make physical devices online Change Drv State Forcibly make a physical device offline if it is included in Virtual Drive.Cancel hot-spare if the physical device is specified as a hot-spare disk. Device Properties Display information of physical devices• Device Type Device type• Media Type Media type (HDD or SSD)• Capacity Capacity• Product ID Product ID• Revision No. Revision No.• Link Speed Transfer rate Rebuild Execute Rebuild Check Consistency Check Consistency of Virtual Drive