Infortrend RAID Controller Manual

following chapters. The configuration process will be demonstrated
in LCD mode and terminal mode.
1. Start terminal emulation (please refer to Chapter 4, your enclosure
manual and the controller Hardware Manual that came with your
controller). You may also begin with the LCD keypad or
RAIDWatch manager.
2. Fine-tune the controller optimization parameters for your host
applications. Although the factory defaults guarantee the
optimized controller operation, you may refer to the table below to
facilitate tuning of your array. Some of the performance and faulttolerance
settings may also be changed later during the
preparation process of your disk array.
Table 3 - 2 Controller Parameter Settings
�� Parameters that should be configured at the initial stage of
system configuration
�� Parameters that can be changed later
�� non-critical
User-Defined
Parameter
Fault Management:
�� Automatic Logical
Drive Rebuild - Spare
Drive
Default Alternate Settings
Enabled when
Spare Drive is
available
RAID 1 + Local Spare
RAID 3 + Local Spare
RAID 5 + Local Spare
Global Spare
�� S.M.A.R.T. Disabled Detect Only
Perpetual Clone
Clone + Replace
�� Clone Failing Drive Manual
Replace After Clone
�� Rebuild Priority
function
Low (higher
Perpetual Clone
Low
priority requires Normal
more system Improved
�� Verification on Write
resource)
Disabled
High
On LD Initialization
On LD Rebuild
On Normal Drive Writes
�� SDRAM ECC
�� Event Notification
Disabled
Reports to user
Enabled
Over Dial-out Modem
interface and Over SNMP Trap
onboard alarm Over Java-Based Management
Software
�� System Events System default Upper and Lower event
triggering thresholds configurable
Optimization Mode:
�� Write-back Cache Enabled Disabled
�� Optimization for Sequential Either (default and must be
RAID Planning 3-7