Dell PowerEdge RAID Controller 6E - Manual (Page 4)

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Contents
Initializing Virtual Disks . . . . . . . . . . . . . . . . . 25
Background Initialization . . . . . . . . . . . . . . 25
Full Initialization of Virtual Disks . . . . . . . . . . 26
Fast Initialization of Virtual Disks . . . . . . . . . . 26
Consistency Checks . . . . . . . . . . . . . . . . . . . 26
Disk Roaming . . . . . . . . . . . . . . . . . . . . . . . 27
Disk Migration . . . . . . . . . . . . . . . . . . . . . . 27
Compatibility With Virtual Disks Created
on PERC 5 Controllers
. . . . . . . . . . . . . . . . 28
Compatibility With Virtual Disks Created
on SAS 6/iR Controllers
. . . . . . . . . . . . . . . 28
Migrating Virtual Disks from SAS 6/iR
to PERC 6 and CERC 6/i
. . . . . . . . . . . . . . . 29
Battery Management . . . . . . . . . . . . . . . . . . . 30
Battery Warranty Information . . . . . . . . . . . 30
Battery Learn Cycle . . . . . . . . . . . . . . . . . 31
Virtual Disk Write Cache Policies . . . . . . . . . . . . 32
Write-Back and Write-Through . . . . . . . . . . . 32
Conditions Under Which Write-Back
is Employed
. . . . . . . . . . . . . . . . . . . . . 32
Conditions Under Which Write-Through
is Employed
. . . . . . . . . . . . . . . . . . . . . 33
Conditions Under Which Forced Write-Back
With No Battery is Employed
. . . . . . . . . . . . 33
Virtual Disk Read Policies . . . . . . . . . . . . . . . . 33
Reconfiguring Virtual Disks . . . . . . . . . . . . . . . 33
Fault Tolerance Features . . . . . . . . . . . . . . . . . 36
Physical Disk Hot Swapping . . . . . . . . . . . . 36
Failed Physical Disk Detection . . . . . . . . . . . 37
Dell_PERC6.2_UG.book Page 4 Wednesday, June 24, 2009 6:08 PM