HP StorageWorks 4000 Compaq StorageWorks Fibre Channel Troubleshooting Guide - Page 15

RA4000 Controller, Features

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Introduction 1-7 RA4000 Controller The RA4000 Controller is a drive array controller designed to be installed in the Compaq StorageWorks RA4000 and RA4100. The RA4000 Controller supports Fast-SCSI-2, Fast-Wide SCSI-2, or Wide-Ultra SCSI-3 hot-pluggable hard drives. The RA4000 comes equipped with one RA4000 Controller installed. A second RA4000 Controller may be added for a redundant configuration. Refer to the Compaq StorageWorks RAID 4000 User Guide (P/N 340428-001) or Compaq StorageWorks RAID 4100 User Guide (P/N146297-001) for more information about configuration. GBIC Receptacle Transmit LED Serial Debug Port 1514 1312 1110 9 8 Figure 1-6. RA4000 Controller Receive LED 76 54 32 10 Features The advanced features supported by the RA4000 Controller include: I Support for RAID 0, 1, 4, and 5 fault tolerance options I Fibre Channel support for connection to the server I Support for Fast-SCSI-2, Fast-Wide SCSI-2, or Wide-Ultra SCSI-3 hot-pluggable hard drives I Online capacity expansion, volume extension, RAID migration, and stripe size migration I Removable Array Accelerator-battery-backed, configurable 16-MB or 48-MB Read/Write Cache with ECC (Error Checking and Correcting) memory, along with a 16-MB Read Cache on the controller board I Performance monitoring through Compaq Insight Manager I Automatic performance tuning I Pre-failure notification on hard drives I Array Configuration Utility I Read-ahead caching I Tagged command queuing I Multiple logical drives per drive array

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Introduction
1-7
RA4000 Controller
The RA4000 Controller is a drive array controller designed to be installed in the Compaq
StorageWorks RA4000 and RA4100. The RA4000 Controller supports Fast-SCSI-2, Fast-Wide
SCSI-2, or Wide-Ultra SCSI-3 hot-pluggable hard drives. The RA4000 comes equipped with
one RA4000 Controller installed. A second RA4000 Controller may be added for a redundant
configuration. Refer to the
Compaq StorageWorks RAID 4000 User Guide
(P/N 340428-001) or
Compaq StorageWorks
RAID 4100 User Guide
(P/N146297-001) for more information about
configuration.
Transmit
LED
Serial Debug
Port
Receive
LED
GBIC
Receptacle
15 14 1312 11 10
98
76
54
32
10
Figure 1-6. RA4000 Controller
Features
The advanced features supported by the RA4000 Controller include:
■
Support for RAID 0, 1, 4, and 5 fault tolerance options
■
Fibre Channel support for connection to the server
■
Support for Fast-SCSI-2, Fast-Wide SCSI-2, or Wide-Ultra SCSI-3 hot-pluggable hard
drives
■
Online capacity expansion, volume extension, RAID migration, and stripe size migration
■
Removable Array Accelerator
—
battery-backed, configurable 16-MB or 48-MB
Read/Write Cache with ECC (Error Checking and Correcting) memory, along with a
16-MB Read Cache on the controller board
■
Performance monitoring through Compaq Insight Manager
■
Automatic performance tuning
■
Pre-failure notification on hard drives
■
Array Configuration Utility
■
Read-ahead caching
■
Tagged command queuing
■
Multiple logical drives per drive array