Storage; Diskonchip - Matrox 4Sight User Manual

104 Chapter 9: Matrox 4Sight hardware reference

Storage

The Matrox 4Sight motherboard features an optional
DiskOnChip for mass storage. With the Matrox 4Sight
integrated unit, an optional IDE hard drive is available for
additional mass storage. The factory-installed optional hard
drive is attached through an ATA (44) internal connector. The
hard drive has a 2.5" profile and includes UltraDMA support.
The hard drive is resistant to small shocks but can be
permanently damaged if subjected to excessive shock or
vibration.
A standard IDE interface, accessible via the motherboard only,
is also provided.
The ATA (44) and the IDE interface have the capacity to support
two devices each. In order to connect the two devices to either
interface, one device must be configured as master and the
other as slave.

DiskOnChip

The DiskOnChip, from M-Systems, provides storage for the
operating system, software libraries, and application. The
following features of the DiskOnChip ensure reliable storage of
data:
It is resistant to shock and vibration, permitting the Matrox
4Sight unit to be used in a physically harsh environment.
It makes use of TrueFFS (True Flash File System) technology,
which allows the DiskOnChip to operate as a virtual hard
drive.
It uses advanced wear levelling, a technique whereby unused
memory sectors are written to before used memory sectors
are overwritten. This helps to maximize the lifetime of the
DiskOnChip.