Acer AcceleRAID 352 Manual Do Utilizador

Controller Start-up

Manual No. 775051

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This setting affects how the BIOS reads the disk drives for the boot partition. 
Drive geometries can be toggled between 8 GB and 2 GB. The default is 2 
GB. When the drive geometry is changed, the drive should be formatted at 
the operating system level. 

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Changing this setting after data has been stored will 
make the data unreadable. If you have already 
configured your array and have stored data, you 
should not change this setting. 

The default BIOS geometry of the controller is set to 2 GB. This means that 
the BIOS can only access the first 2 GB of any drive that has been configured 
on the controller. This is adequate in most applications, since BIOS is only 
used to boot the operating system. However, it does mean the operating 
system must be installed in the first 2 GB of the capacity of the configured 
drive. If this is not adequate, the BIOS geometry can be changed to 8 GB, 
allowing the BIOS to access the first 8 GB of capacity.

As a rule of thumb, select 8 GB geometry if the following two cases apply:

1. You have a system (RAID) drive that is greater than 2.145 GB in 

capacity.

2. The DOS/Windows compatible partitions could be located in an area 

above the first 2.145 GB.

Otherwise the 2 GB option is fine.