A-10
ICP RAID Configuration Utility
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 50,
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.