Dell MD3620I, MD3600I owner manual Planning RAID Controller Modules, Cache Functions and Features

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3 Planning: RAID Controller Modules . . . . 31

RAID Controller Modules	31
RAID Controller Module Connectors and Features . . .	32
RAID Controller Module—Additional Features	34
Battery Backup Unit	34
Storage Array Thermal Shutdown	34
System Password Reset	35
Cache Functions and Features	35
Cache Mirroring	35
Write-Back Cache	35
Write-Through Cache	36

4Planning: MD3600i 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	41
RAID Level Usage	41
Segment Size	43
Virtual Disk Operations	43
Virtual Disk Initialization	43
Consistency Check	44
Media Verification	44

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