4 Contents
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
4 Planning: 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
book.book Page 4 Tuesday, September 27, 2011 3:13 PM
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