Appendix D: Adaptec HostRAID
D-1
Appendix D. Adaptec HostRAID Setup Guidelines
After all the hardware has been installed, you must fi rst confi gure the Adaptec
Embedded Serial ATA RAID before you install the Windows operating system.
The necessary drivers are all included on the NovaScale R423 Resources CD
that came packaged with your motherboard. Note
: The following section provides
information on the Adaptec SATA RAID Driver based on the Intel Enterprise South
Bridge 2 (ESB2) Controller.
D-1 Introduction to the Adaptec SATA RAID Controller
Serial ATA (SATA)
SATA is a physical storage interface that uses a single cable with a minimum of
four wires to create a point-to-point connection between devices. It is a serial link
which supports transfer rates up to 3.0 Gbps. Because the serial cables used in
SATA are thinner than the traditional cables used in Parallel ATA (PATA), SATA
systems have better airfl ow and can be installed in smaller chassis. In addition, the
cables used in PATA can only extend to 40cm long, while SATA cables can extend
up to one meter. Overall, SATA provides better functionality than PATA.
ESB2 I/O Controller Hub
Located in the South Bridge of the Intel 5400 chipset, the ESB2 I/O Controller
Hub provides the I/O subsystem with access to the rest of the system. It supports
a 1-channel Ultra ATA/100 Bus Master IDE controller and an Adaptec SATA Host
Controller, which support up to six SATA drives, up to two RAID volumes and up
to four drives in RAID confi gurations. See the table below for details.
* Adaptec’s SATA HostRAID Controller Firmware supports:
Drives supported
Six
Number of RAID Volumes supported
Two
Total Drives in RAID Configurations
Four
Examples of Valid RAID Configurations:
Two drives of RAID 1 + two drives of RAID 0
Two drives of RAID 1 + two drives of RAID 1
Three drives of RAID 0
Four drives of RAID 0
Examples of Invalid RAID Configurations:
Three drives of RAID 0 + two drives of RAID 1
(
*Note
: this table is applicable to Adaptec’s HostRAID Controller
Firmware only.)
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