Creating
logical drives > advanced settings
Note: Not all options
are available for all RAID levels.
Use the Advanced settings in the Configuration wizard to tune
your logical drive configuration for optimal performance. You can set the following
options:
- Write cache - Determines how data is stored in the controller's
cache memory. You can choose from two available settings: write-through
and write-back.
- stripe-unit size - Determines the amount of data, in kilobytes
(KB), written on one segment of a logical drive
before subsequent data is stored on the next segment.
Note: The default
stripe size usually provides the best performance for typical applications.
- Read cache - Enables and disables read caching. When read-caching
is enabled, the controller monitors read access to the logical drive. If it
detects a pattern, it pre-loads the cache with the data that seems most likely
to be read next. The default is Enabled.
- Initialize method - Determines the method used to initialize
the logical drive. You can choose from three available settings:
- Auto-synchronization - For RAID Level-1 logical drives,
copies the data from the primary drive to the mirror drive. For RAID Level-5
logical drives, computes and writes the correct parity for the entire
logical drive.
Note: Auto-synchronization
can be a lengthy operation. The ServeRAID Manager performs this task in
the background. However, you cannot use the logical drive until the task
is complete.
- Clear - removes pre-existing data by overwriting every
block in the logical drive. This method is faster than auto-synchronization
but the logical drive is not available immediately.
For HostRAID
controllers, the ServeRAID Manager supports the Clear initialization method
only.
- Quick - makes the logical drive available immediately.
It is the fastest method but should be used only for new physical
disks.
- Initialize priority - Adjusts the priority of the initialization
task. The default is High: initialize the logical drive as fast as possible.
When you are ready to continue, click Next. The "Configuration
summary" window opens.
More information
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