Dell MD3200 Computer Accessories User Manual


 
4 Contents
RAID Controller Module Connectors
and Features
. . . . . . . . . . . . . . . . . . . . . . . 32
RAID Controller Module—Additional Features . . . . . 34
Battery Backup Unit
. . . . . . . . . . . . . . . . 34
Storage Array Thermal Shutdown . . . . . . . . . 35
System Password Reset
. . . . . . . . . . . . . . 35
Cache Functions and Features
. . . . . . . . . . . . . . 36
Cache Mirroring
. . . . . . . . . . . . . . . . . . . 36
Write-Back Cache
. . . . . . . . . . . . . . . . . 36
Write-Through Cache
. . . . . . . . . . . . . . . . 36
4 Planning: MD3200 Series Storage
Array Terms and Concepts . . . . . . . . . . . 37
Physical Disks, Virtual Disks, and Disk Groups . . . . . 37
Physical Disks
. . . . . . . . . . . . . . . . . . . . 38
Physical Disk States . . . . . . . . . . . . . . . . 38
Self-Monitoring Analysis and
Reporting Technology. . . . . . . . . . . . . . . . 39
Virtual Disks and Disk Groups
. . . . . . . . . . . 39
Virtual Disk States
. . . . . . . . . . . . . . . . . 40
RAID Levels
. . . . . . . . . . . . . . . . . . . . . . . . 40
RAID Level Usage
. . . . . . . . . . . . . . . . . . 41
Segment Size
. . . . . . . . . . . . . . . . . . . . . . . 43
Virtual Disk Operations . . . . . . . . . . . . . . . . . 43
Virtual Disk Initialization
. . . . . . . . . . . . . . 43
Background Initialization
. . . . . . . . . . . . . . 43
Foreground Initialization
. . . . . . . . . . . . . . 43
Consistency Check
. . . . . . . . . . . . . . . . . 44
Media Verification
. . . . . . . . . . . . . . . . . 44
book.book Page 4 Tuesday, September 27, 2011 3:25 PM