Compaq Infortrend manual Iteration Count, Write Policy

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.

7-20 Infortrend