Promise Technology FASTtrak100 TX User Manual page 23

Defining Typical Application Usage
Allows the user to choose the type of PC usage that will be performed in order to
optimize how FastTrak100 handles data blocks to enhance performance. Your choice
will determine the block size used. You may choose from: A/V Editing (for audio/video
applications, or any similar application that requires large file transfers), Server (for
numerous small file transfers), or Desktop (a combination of large and small file sizes).
Using a "Hot" Spare Drive
If a third drive is attached and is not assigned to a mirrored two-drive disk array (one
optimized for "Security"), it will be recognized as a Spare Drive. Such a drive is
immediately used as a "standby" replacement. It is automatically added to an array
once a disk member of the array has been detected as "failed." To restore fault
tolerance as quickly as possible, FastTrak100 begins to perform an automatic data
rebuild on the "spare" drive in the background without t he need to restart the system.
At a later time, the failed drive can be physically removed from the FastTrak100 card
and an extra drive added in its place to function as the "spare" drive.
NOTE: Due to IDE limitations when drives are in a Master/Slave configuration, if the
drive that fails is on the same channel as the "spare" drive, there is a possibility that
the "spare" drive will fail to be recognized by the system. For this reason Promise
recommends using "spare" drives only on the FastTrak100 TX4.
NOTE: The hot spare drive must have a capacity that is equal to or larger than the
smallest array member.
Creating Multiple Disk Arrays
1. If you plan to create multiple arrays, attach only the drives necessary to create
the first disk array and complete the <1> Auto Setup.
2. Install the additional drives needed for the second array and again use the <1>
Auto Setup.
NOTE: If you wish to customize the settings of individual disk arrays (such as block
size), you must manually create disk arrays with the Define Array <3> option from
the Main Menu.
FastTrak100 TX/LP™ Series User Manual
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