Compaq StorageWorks 4000 - RAID Array Guide de l'utilisateur télécharger pdf (Page 21)

Introduction

The RA4000 Controller is a drive array controller designed for installation in

the RA4000. The RA4000 Controller supports Wide-Ultra SCSI-3, Fast-Wide

SCSI-2, and Fast SCSI-2. The RA4000 is equipped with one installed RA4000

Controller.

The advanced features supported by the RA4000 Controller are:

n Support for RAID 0, 1, 4, and 5 fault-tolerance options

n Fibre Channel support for connection to the server

n Support for Wide-Ultra SCSI-3, Fast-Wide SCSI-2, and Fast SCSI-2

hard drives

n Online Capacity Expansion (Microsoft Windows NT and Novell

NetWare only)

n Online Volume Extension

n Online Stripe Size Migration

n Online RAID Migration

n Removable RA4000 Controller Cache

n Battery-backed 64-MB Cache with ECC memory

n Controller board containing a 16-MB Read Cache

n Performance monitoring through Compaq Insight Manager

n Automatic performance tuning

n Pre-failure notification on hard disk drives

n Array Configuration Utility (ACU)

n Read-ahead caching

n Tagged-command queuing

n Multiple logical drives per RA4000

n Array Diagnostics Utility (ADU)

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Compaq StorageWorks 4000 - RAID Array Guide de l'utilisateur Page 21