Inside Windows Storage: Server Storage Technologies for Windows 2000, Windows Server 2003 and Beyond

   

9.2 Windows NT and RAID Implementation

One obvious way to have RAID with Windows NT is for RAID to be implemented in hardware, such as in the HBA or the storage device controller.

Several drivers in the Windows Server family implement (host-based) RAID, including the fault-tolerant FtDisk driver, the Logical Disk Manager (LDM) driver that ships with Windows 2000, and the VERITAS Logical Volume Manager (LVM) product available for Windows 2000 from VERITAS. All of these drivers were discussed in Chapter 1 and also in Chapter 6. The RAID support provided by these pieces of software is summarized in Table 9.1.

Table 9.1. RAID Capabilities of Several Windows Volume Managers

RAID Level

FtDisk

Windows 2000 Logical Disk Manager

VERITAS Logical Volume Manager

RAID 0

Yes

Yes

Yes

RAID 1

Yes

Yes

Yes

RAID 5

Yes

Yes

Yes

RAID 10

No

No

Yes

   
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