Dell PowerVault MD3200 Owner's Manual - Page 4

RAID Controller Module Connectors and Features . . . 30 RAID Controller Module-Additional Features . . . . . 32 Battery Backup Unit 32 Storage Array Thermal Shutdown 33 System Password Reset 33 Cache Functions and Features 34 Cache Mirroring 34 Write-Back Cache 34 Write-Through Cache 34 4 Planning: MD3200 Series Storage Array Terms and Concepts 35 Physical Disks, Virtual Disks, and Disk Groups . . . . . 35 Physical Disks 36 Physical Disk States 36 Self-Monitoring Analysis and Reporting Technology 37 Virtual Disks and Disk Groups 37 Virtual Disk States 38 RAID Levels 38 RAID Level Usage 39 Segment Size 41 Virtual Disk Operations 41 Virtual Disk Initialization 41 Background Initialization 41 Foreground Initialization 41 Consistency Check 42 Media Verification 42 Cycle Time 42 4 Contents