This manual provides detailed information about VIA SATA RAID Host Controller and its driver and RAID software installation.
This manual introduces the VIA VT6420 SATA RAID Host Controller, covering RAID concepts, supported RAID levels (0, 1, JBOD), and key features such as dual SATA channels, hot‑swap support, and real‑time monitoring. It provides step‑by‑step guidance for installing hard drives in either a two‑SATA + two‑PATA or four‑SATA configuration.
The document details the BIOS Configuration Utility, showing how to create, delete, and manage disk arrays, select block sizes, and handle broken RAID 1 arrays with spare drives. Additional sections cover driver installation, Windows compatibility, and troubleshooting through event logs and status monitoring.
| Controller Chip | VT6420 |
|---|---|
| SATA Channels | 2‑channel SATA |
| Supported RAID Levels | RAID 0, RAID 1, JBOD |
| Maximum Drives Supported | 4 hard drives |
| Striping Block Size | 4 KB to 64 KB |
| Drive Capacity Support | Larger than 137 GB (48‑bit LBA) |
| Hot‑Swap Support | Yes, for failed disks in RAID 1 |
| Operating System Compatibility | Windows 98, Me, NT4.0, 2000, XP |
It supports RAID 0 (striping), RAID 1 (mirroring), and JBOD (spanning).
Yes, the controller supports hot‑swap of a failed disk in a RAID 1 array.
The striping block size can be set up to 64 KB.