Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide

4-16 Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide

Compaq Confidential – Need to Know Required

Writer: John Blackburn Project: Compaq Parallel Database Cluster Model PDC/O2000 for Oracle8i and Windows 2000 Administrator Guide Comments:

Part Number: 225082-002 File Name: e-ch4 Cluster Planning.doc Last Saved On: 6/13/01 10:25 AM

Supported RAID Levels

RAID provides several fault-tolerant options to protect your cluster’s shared

data. However, each RAID level offers a different mix of performance,

reliability, and cost.

The RA4000/RA4100 Array and its RA4000 Array Controllers support these

RAID levels:

■ RAID 0

■ RAID 0+1

■ RAID 1

■ RAID 4

■ RAID 5

NOTE: RAID 0 does not provide the fault tolerance feature of other RAID levels.

For RAID level definitions and information about configuring hardware

RAID, refer to the following:

■ Refer to the information about RAID configuration contained in the

Compaq StorageWorks RAID Array 4000 User Guide or the Compaq

StorageWorks RAID Array 4100 User Guide.

■ Refer to the Compaq white paper Configuring Compaq RAID

Technology for Database Servers, #ECG 011/0598, available at the

Compaq website at

www.compaq.com

■ Refer to the various white papers on Oracle8i, which are available at the

Compaq ActiveAnswers

website at