Dell 6 series, User Manual

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4
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