Tunable Parameters; Fault Management - Compaq External RAID Controller & Subsystem Infortrend Operation Manual

2.4
User-Defined
Parameters

Fault Management:

Controller:
2-10

Tunable Parameters

Fine-tune the controller and the array 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 fault-tolerance
settings may also be changed later during the preparation process of
your disk array.
Take this table as a check list and make sure you have each item set
to an appropriate value.
Table 2 - 2 Controller Parameter Settings
Parameters that should be configured at the initial stage of system
configuration
Parameters that can be changed later
Non-critical
Automatic Logical
Drive Rebuild - Spare
Drive
S.M.A.R.T.
Clone Failing Drive
Rebuild Priority
Verification on Write
SDRAM ECC
Event Notification
System Events
Channel Mode
Host and Drive channel IDs
Controller Unique
Identifier
Data rate
Default Alternate Settings
Enabled when RAID 1 + Local Spare
Spare Drive is RAID 3 + Local Spare
available RAID 5 + Local Spare
Global Spare
Disabled Detect Only
Perpetual Clone
Clone + Replace
Manual function Replace After Clone
Perpetual Clone
Low (higher Low
priority requires Normal
more system Improved
resource) High
Disabled On LD Initialization
On LD Rebuild
On Normal Drive Writes
Disabled Enabled
Reports to user Over Dial-out Modem
interface and Over SNMP Trap
onboard alarm Over Java-Based Management
Software
System default Upper and Lower event triggering
thresholds configurable
* Host, Drive, RCCOM, Drive +
RCCOM
* *
Preset on hex number from 0 to FFFFF (FW 3.25
some and above)
models
Auto Depends on problems solving
RAID Planning