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Adaptec RAID Configuration Utility (ARC)
Controller Configuration Options
The Controller Configuration options are described in the table
below.
Option Default
Models
Affected
Description
Drives Write
Cache
Drive's
Default
All When
Enabled
, write cache is
enabled, providing maximum drive
performance. When
Disabled
, no
write cache is used on the drive. By
default, the drive’s setting is used.
Caution
—When
Enabled
, there is a
slight possibility (less than with
controller cache) of data loss or
corruption during a power failure.
Runtime BIOS
Enabled
All When
Enabled
, the controller BIOS
allows the controller to act as a
bootable device. Disabling the BIOS
allows another suitable controller to
act as the boot device.
Automatic
Failover
Enabled All When
Enabled
, the controller
automatically rebuilds an array
when the failed drive is replaced.
When disabled, the array must be
rebuilt manually.
Array
Background
Consistency
Check
Disabled
All When
Enabled
, the controller
constantly performs a verification
on a redundant array to data
integrity. In the case of RAID 1 or 10,
consistency checks assure that the
data between like blocks match. In
the case of a RAID 5 or a RAID 0,
consistency checks assure that data
in the stripe and the calculated
parity for the stripe match.
Consistency checking processes
reduce performance. For a RAID 5
or a RAID 50, the performance
reduction is significant.
BBS Support Enabled
See
note
1
When
Enabled
in systems that
support BBS, controller is presented
as a bootable device in the host
system's BIOS for boot device
selection.