Manhattan 176767 SATA 1.5 Gb_s RAID Controller PCI Card - Manual - Manual (Page 4)

Features
This MANHATTAN SATA 150 RAID Controller PCI Card is a PCI-to-
dual-SATA host controller board that provides a 32-bit, 33/66 MHz PCI
interface on the hose side and dual, fully compliant SATA ports on the
device side to access SATA storage devices.
The card can upgrade your desktop computer to have dual SATA
channels and support RAID 0 and RAID 1 features. It accepts host
commands through the PCI bus, processes them and transfers data
between the host and SATA devices. When connected to a SATA target
device, the card will take the data, serialize it and output it for transmission
over the SATA interface. It can control two independent SATA channels
— each with its own SATA bus — and will support one SATA device.
The card supports a SATA 100 transfer rate of 1.5 Gbps. It comes
complete with drivers for Windows 2000, XP and Server 2003.
RAID
RAID (redundant array of independent disks) technology manages multiple
disk drives to enhance I/O performance and provide redundancy in order
to withstand the failure of any individual member without loss of data.
This card provides two RAID set types: Striped (RAID 0) and Mirrored
(RAID 1).
Disk Striping (RAID 0)
Striping is a performance-oriented, non-redundant data-mapping technique.
While mentioned as a RAID set type, it actually doesn’t provide fault
tolerance. With modern SATA bus-mastering technology, multiple I/O
operations can be done in parallel, enhancing performance. Striping
arrays use multiple disks to form a larger virtual disk.
Disk Mirroring (RAID 1)
Disk mirroring creates an identical twin for a selected disk by having the
data simultaneously written to two disks. This redundancy provides