External RAID Controller & Subsystem Operation Manual

Infortrend
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those blocks are automatically recalculated, retrieved and stored
onto undamaged sectors. If bad blocks are encountered on yet
another drive during the rebuild process, the block LBA (Logical
Block Address) of those bad blocks will be shown. If rebuild is
carried out under this situation, rebuild will continue with he
unaffected sectors, salvaging a majority of the stored data.
There are two options with performing the media scan:
1. Media Scan Priority: determines how much system resources
will be used for drive scanning and recalculating process.
2. Iteration Count:
The iteration setting determines how many times the scan is
performed. If set to the continuous, the scan will run in the
background continuously until it is stopped by user.
Write Policy
The Write-Back cache setting is configurable on the per array basis.
Setting to the default value means the array setting is coordinated with the
controller’s general setting. The controller’s general setting option can be
found in “View and Edit Configuration Parameters” -> “Caching
Parameters” -> “Write-Back Cache”. Note that cached writes are lost if
power failure should occur.