U320 Scsi Controller; About Raid Configurations; Raid Level; Ieee 1394 - Dell Precision Workstation 370 User's & Service Manual

3. In the Device Manager window, click the plus (+) sign next to the processor type. If Hyper- Threading is enabled, the
processor is listed twice.
You can enable or disable Hyper-Threading through system setup.

IEEE 1394

IEEE 1394 is a digital interface that can move large amounts of data between computers and peripheral devices. IEEE 1394 is
ideal for use with multimedia devices because it speeds the transfer of data and large files, which enables a computer to
connect directly to devices such as digital video cameras.
NOTE: The connector can accept 4-pin IEEE 1394 devices with the use of an adapter.
The Dell Precision 370 desktop computer has an optional front IEEE 1394 connector (see
connector is only available if you purchased an add-in IEEE 1394 card. To purchase a card, contact Dell.

U320 SCSI Controller

The optional U320 SCSI controller is PCI based and operates in a low voltage differential (LVD) mode while running at U320
(320 MBps) speeds. The bus is backward compatible and can run at U160 (160 MBps), Ultra2 (80 MBps), Ultra (40 MBps)
speeds.
If single-ended (SE) devices are connected to the same bus as the LVD devices (such as U320, U160, or Ultra2), the SCSI
bus operates in SE mode and runs at maximum of Ultra (40 MBps) speed.
For more information installing a SCSI device and SCSI ID settings for your mini-tower computer, see "Drives" for your
desktop computer "Drives."

About RAID Configurations

This section provides an overview of the RAID configuration that you might have selected when you purchased your
computer. Although there are several RAID configurations available in the computer industry for different types of uses, Dell
offers either RAID level 0 or RAID level 1 on your Precision computer. A RAID level 0 configuration is recommended for high-
performance applications, and a RAID level 1 configuration is recommended for users that desire a higher level of data
integrity.
NOTE: RAID levels do not represent a hierarchy. A RAID level 1 configuration is not inherently better or worse than a
RAID level 0 configuration.

RAID Level 0

RAID level 0 uses a storage technique known as "data striping" to provide a high data access rate. Data striping is a method
of writing consecutive segments, or stripes, of data sequentially across the physical drives to create a large virtual drive. Data
striping allows one of the drives to read data while the other drive is searching for and reading the next block.
"Your Desktop Computer"). This