NexStor 4900F Series User manual

USER'S GUIDE
NexStor®4900F Series
RAID STORAGE SYSTEMS
4900F.book Page 1 Wednesday, May 18, 2005 10:07 AM

4900F.book Page 2 Wednesday, May 18, 2005 10:07 AM

USER'S GUIDE
NexStor®4900F Series
RAID STORAGE SYSTEMS
4900F.book Page 3 Wednesday, May 18, 2005 10:07 AM

nStor Corporation, Inc.
Restricted Rights and Liability
No part of this manual may be reproduced, stored in a retrieval system, or transmitted, in any form or by any
means, electronic, mechanical, recording, or otherwise, in whole or part, without prior written permission from
nStor Corporation, Inc.
nStor Corporation, Inc. shall not be liable for any damages or for the loss of any information resulting from the
performance or use of the information contained herein. Your rights to the software are governed by the license
agreement included with any accompanying software. nStor Corporation reserves the right to periodically revise
this manual without notice. Product features and specifications described are subject to change without notice.
For Regulatory information, see Appendix C.
Copyright
nStor
Corporation
, Inc.
6190 Corte Del Cedro Road
Carlsbad, CA 92009
Copyright © 2005 nStor Corporation, Inc. All Rights Reserved.
nStor, StorView, NexStor, the NexStor logo, the StorView logo, and the nStor logo are trademarks or registered
trademarks of nStor Corporation, Inc.
Other company and product names herein may be trademarks or registered trademarks of their respective
companies.
Agency Notes
WARNING: Drives and controller/adapter cards described in this manual should only be installed in UL-listed and CSA
certified computers that give specific instructions on the installation and removal of accessory cards (refer to your
computer installation manual for proper instructions).
ATTENTION: Les lecteurs et cartes contrôleurs décrits ici ne doivent être montés que sur des ordinateurs homologués (UL et
CSA) et livrés avec des manuels contenant les instructions d’installation et de retrait des accessoires. Reportez-
vous au manuel d’installation de votre ordinateur.
SERVICE NOTE: Remove the power cables prior to servicing this equipment.
!
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i
Contents
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Typographical Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Customer Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
1 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Power System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Standard AC Hot Swappable Power Supplies . . . . . . . . . . . . . . 4
Optional DC Hot Swappable Power Supplies . . . . . . . . . . . . . . 5
Cooling Fan Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SES Controller Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Drive Device ID Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Spin-Up Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Disk I/O Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Host I/O Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SFP Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
RAID Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Battery Backup Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Embedded Applications - StorView . . . . . . . . . . . . . . . . . . . . . 20
SES Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Control and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Status Indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Power-On LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Channel Status LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Power Supply Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Fan Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Drive LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Audible Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
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Table of Contents
ii
2 Topologies and Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . 25
Operating Mode Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Simplex Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Dual Port Single Host Connection . . . . . . . . . . . . . . . . . . . . . . 26
Dual Port Single Host Dual Connection. . . . . . . . . . . . . . . . . . 27
Dual Port Multi-Host Single Connection . . . . . . . . . . . . . . . . . 28
Dual Port Multi-Host Dual Connection . . . . . . . . . . . . . . . . . . 29
Duplex Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Multi-Port Mirrored Single Host-Single Connection. . . . . . . . . . 31
Multi-Port Mirrored Single Host-Dual Connection. . . . . . . . . . . 32
Multi-Port Mirrored Dual Host System-Single Connection . . . . . 34
Multi-Port Mirrored Dual Host System-Quad Connection . . . . . 35
Multi-Port Mirrored SAN Attach Single Switch Connection . . . . 36
Multi-Port Mirrored SAN Attach Dual Switch Connection . . . . . 37
Daisy-Chain JBOD Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Single Bus Dual-Loop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 38
SAN LUN Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Alternate Path Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Fibre Channel Media Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
A Word about Clustering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Minimizing Downtime for Maximum Data Availability . . . . . . . . 41
How Available are Clusters? . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Application of Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
3 Setup and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Storage System Detailed Installation . . . . . . . . . . . . . . . . . . . . . . 46
Installing the Storage System Enclosure into the Rack Cabinet . . 46
Installing the Storage System into the Tower Stand . . . . . . . . . . 49
Completing the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Cabling the DC Power Supplies . . . . . . . . . . . . . . . . . . . . . . . 54
Network Connectivity for Embedded StorView . . . . . . . . . . . . . 55
Before You Continue... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Special Note for Microsoft Windows 2000/2003 Installations . . . . 55
Operating Mode Configuration and Cabling . . . . . . . . . . . . . . . . 56
SES Controller Card Switch Setting Overview. . . . . . . . . . . . . . 56
Simplex Mode (NexStor 4911F/4912F/4931F/4932F). . . . . . . . . 59
Duplex Mode (NexStor 4921F/4922F/4941F/4942F) . . . . . . . . . 73
Disk Expansion – Daisy-Chaining . . . . . . . . . . . . . . . . . . . . . . . 95
Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Embedded StorView Initial Setup . . . . . . . . . . . . . . . . . . . . . . . . 98
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Table of Contents
iii
Powering On the Storage System . . . . . . . . . . . . . . . . . . . . . . . . 102
Powering Off the Storage System . . . . . . . . . . . . . . . . . . . . . . . . 102
4 Managing and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Enclosure Component Monitoring . . . . . . . . . . . . . . . . . . . . . . . 103
Status Indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Power-On LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Channel Status LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Power Supply Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Fan Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Drive LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Drive Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Drive Activity LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Drive Carrier LitePipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Audible Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
LED Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
One-Touch Annunciation Configuration Display . . . . . . . . . . . . . 108
Enclosure Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
SES Commands Debug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Updating SES Controller Card Firmware . . . . . . . . . . . . . . . . . . . 112
Enclosure Fan Speed Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Manual Override. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Setting the Communications Parameters Automatically . . . . . . . 117
Updating the Controller Firmware . . . . . . . . . . . . . . . . . . . . . . . 118
5 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
General Enclosure Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Logical Drive and OS Problems . . . . . . . . . . . . . . . . . . . . . . . . . 124
Common Fibre Loop/Bus Problems . . . . . . . . . . . . . . . . . . . . . . 125
Common Problems and Interpreting the LEDs . . . . . . . . . . . . . . 127
Terminal and COM Port Problems . . . . . . . . . . . . . . . . . . . . . . . 129
Problems During Bootup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
6 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Removing the Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Replacing the Cooling Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Replacing an AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . 135
Replacing a DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Replacing a Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Replacing the Disk I/O Card . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Replacing the Host I/O Card . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
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iv
Replacing the SES Controller Card . . . . . . . . . . . . . . . . . . . . . . . 147
Replacing a RAID Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Replacing the Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
A Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
B Port Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Optical SFP Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
SES Controller Card RS-232 Service Port . . . . . . . . . . . . . . . . . . . 158
Null-Modem Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . 159
DC Power Supply Connector Pinout . . . . . . . . . . . . . . . . . . . . . 160
RS-232 Service Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Communication Cable Specifications . . . . . . . . . . . . . . . . . . . . . 162
10/100Base-T Ethernet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
C Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Compliance Information Statement . . . . . . . . . . . . . . . . . . . . . . 163
FCC Class A Radio Frequency Interference Statement . . . . . . . . . 164
Class A Taiwanese Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Class A Japanese Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
CE Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
AC Power Cord Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
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v
Preface
About this Manual
Welcome
Congratulations on the purchase of your new NexStor
®
4900F Series RAID
Storage System from nStor Corporation. This new generation Fibre Channel
storage system provides superior high-performance, redundancy and fault
tolerance with dual next generation FC-FC RAID Controllers .
It’s unique 2U design is optimized to fit in the compact space of today’s data
centers rack environments and as a deskside tower system.
The enclosure supports up to twelve hot pluggable 1-inch high Fibre Channel disk
drives in a 2U (3.47-inch) form factor. Full component redundancy is provided
through a hot pluggable cooling fan module which contains two in-line cooling fans
and a redundant N+1 power system with dual hot pluggable independent power
supplies. Hot swappable components allow the storage system to maintain
continuous operation without interruption to normal service with the loss or
replacement of one component.
Host connectivity is provided through dual independent 2Gb per second Fibre
Channel ports per Host I/O card. RAID functionality is provided through one or
two embedded RAID Controllers . The controller supports RAID levels 0, 1, 5, 10,
and 50.
The NexStor 4900F Series RAID Storage System is available as a single controller
configuration designed for Stand-Alone topologies or a dual controller configuration
for Active-Active topologies. An optional configuration is available that includes an
embedded version of the storage management software, StorView.
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About this Manual
Welcome
vi
The following are descriptions of the NexStor 4900F Series product offerings:
NexStor 4911F is a 12-Bay 2 Gbit per second single RAID Controller in a 3.5"
(2U) rackmount storage solution with 512MB of cache memory, a
battery-backup unit, four host ports (2 ports per each Host I/O Card), two
high-performance Disk I/O Cards, and four optical transceivers. It also
includes StorView Storage Management software, dual AC power supplies,
dual AC power cords, SES Card, DB9 null modem cable, rackmount rail kit,
and removable cooling fan module. Drives are sold separately.
NexStor 4912F is a 12-Bay 2 Gbit per second single RAID Controller in a 3.5"
(2U) rackmount storage solution with 1GB of cache memory, battery-backup
unit, four host ports (2 ports per each Host I/O Card), and two
high-performance Disk I/O Cards. It also includes StorView Storage
Management software, four optical transceivers, dual AC power supplies, dual
AC power cords, SES Card, DB9 null modem cable, rackmount rail kit, and
removable cooling fan module. Drives are sold separately.
NexStor 4921F is a 12-Bay 2 Gbit per second dual RAID Controller in a 3.5"
(2U) rackmount storage solution with 1GB of cache memory, battery-backup
units, four host ports (2 ports per each Host I/O Card), and two
high-performance Disk I/O Cards. It also includes StorView Storage
Management software, four optical transceivers, dual AC power supplies, dual
AC power cords, SES Card, DB9 null modem cable, rackmount rail kit, and
removable cooling fan module. Drives are sold separately.
Product Identification
Storage Enclosure Cache Memory Type of StorView Controllers
NexStor 4000F Not Applicable Not Applicable 0
NexStor 4911F 512 MB Installable 1
NexStor 4912F 1 GB Installable 1
NexStor 4921F 1 GB Installable 2
NexStor 4922F 2 Gb Installable‘ 2
NexStor 4931F 512 MB Embedded 1
NexStor 4932F 1 Gb Embedded 1
NexStor 4941F 1 GB Embedded 2
NexStor 4942F 2 GB Embedded 2
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About this Manual
Welcome vii
NexStor 4922F is a 12-Bay 2 Gbit per second dual RAID Controller in a 3.5"
(2U) rackmount storage solution with 2GB of cache memory, battery-backup
units, four host ports (2 ports per each Host I/O Card), and two
high-performance Disk I/O Cards. It also includes StorView Storage
Management software, four optical transceivers, dual AC power supplies, dual
AC power cords, SES Card, DB9 null modem cable, rackmount rail kit, and
removable fan module. Drives are sold separately.
NexStor 4931F is a 12-Bay 2 Gbit per second single RAID Controller in a 3.5"
(2U) rackmount storage solution with embedded StorView Storage
Management, 512MB of cache memory, battery-backup unit, four host ports (2
ports per each Host I/O Card), and two high-performance Disk I/O Cards. It
also includes four optical transceivers, a RJ-45 ethernet port, dual AC power
supplies, dual AC power cords, SES Card, DB9 null modem cable, rackmount
rail kit, and removable cooling fan module. Drives are sold separately.
NexStor 4932F is a 12-Bay 2 Gbit per second single RAID Controller in a 3.5"
(2U) rackmount storage solution with embedded StorView Storage
Management, 1GB of cache memory, battery-backup unit, four host ports (2
ports per each Host I/O Card), and two high-performance Disk I/O Cards. It
also includes four optical transceivers, a RJ-45 ethernet port, dual AC power
supplies, dual AC power cords, SES Card, DB9 null modem cable, rackmount
rail kit, and removable cooling fan module. Drives are sold separately.
NexStor 4941F is a 12-Bay 2 Gbit per second dual RAID Controller in a 3.5"
(2U) rackmount storage solution with embedded StorView Storage
Management, 1GB of cache memory, battery-backup units, four host ports (2
ports per each Host I/O Card), and two high-performance Disk I/O Cards. It
also includes four optical transceivers, a RJ-45 ethernet port, dual AC power
supplies, dual AC power cords, SES Card, DB9 null modem cable, rackmount
rail kit, and removable cooling fan module. Drives are sold separately.
NexStor 4942F is a 12-Bay 2 Gbit per second dual RAID Controller in a 3.5"
(2U) rackmount storage solution with embedded StorView Storage
Management, 2GB of cache memory, battery-backup units, four host ports (2
ports per each Host I/O Card), and two high-performance Disk I/O Cards. It
also includes four optical transceivers, RJ-45 ethernet port, dual AC power
supplies, dual AC power cords, SES Card, DB9 null modem cable, rackmount
rail kit, and removable cooling fan module. Drives are sold separately.
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About this Manual
Typographical Conventions
viii
An optional deskside tower kit is available.
This user’s guide is your complete documentation to set up the storage system
hardware, add components, cable the storage system components, replace parts,
and diagnose/repair your system.
For information on software configuration and management, refer to the software
guide included with your system. Your storage system includes three VT-100
interfaces (text-based (TUI) and menu-based (MUI)) and StorView with a local
access license.
Typographical Conventions
The following typographical conventions are used in the user’s guide:
■
Menu items are displayed in italic format: “ View Unused Drives.”
■
Code font will indicate literal text used in examples.
■
Italic code font indicates a replaceable or variable item in code.
■
Italic text indicates the item that is selected or chosen.
■
Key strokes are enclosed in brackets, e.g., <Esc>, <K>, or <Enter>.
Customer Care
You will find warranty, customer service and technical support on the nStor web
site. Refer to http://www.nstor.com.
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About this Manual
Features ix
Features
The NexStor 4900F Series Storage Systems are designed for mission critical
applications requiring the highest performance with uncompromised data reliability,
such as mid-range and enterprise server storage, while maintaining exceptionally
high throughput. The storage system is ideally suited for high bandwidth data
intensive applications, such as electronic commerce, digital video, CAD, seismic
research, digital pre-press, 3-D imaging, and SAN environments.
The following are major features of the NexStor 4900F Series Storage Systems:
■
2 Gb Fibre Channel-to-Fibre Channel storage system enclosure.
■
Hot pluggable disk drives, 12 per enclosure.
■
Hot pluggable cooling fan module.
■
Dual redundant AC power supplies.
■
(Optional) Dual redundant DC power supplies.
■
SES Enclosure management includes onboard environmental monitoring.
■
Designed to fit standard 19-inch rack enclosures and a deskside tower.
■
Front panel LEDs provide notifications of system component status and
logical and physical drive status.
■
Support for 16 drives per array and 64 arrays.
■
RAID Controller employs an Intel XScale 600MHz RISC processor. It also
provides dual XOR engines for increased throughput processing.
■ 512 MB or 1GB cache memory using standard DDR SDRAM.
■
(Optional) On controller embedded StorView Management Suite software.
StorView is the GUI-based software that provides the robust and
easy-to-use configuration and monitoring tool.
■
Transparent failover/failback RAID Controllers in duplex Active-Active
operations.
■
On-board controller-to-host SAN LUN Mapping.
■
Mirrored Cache for write-through and write-back operations with a “Save
to Disk” feature for unlimited backup protection.
■ Operating system independence – no special software or drivers required.
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About this Manual
Features
x
■ Dual 2 Gb/sec (gigabit per second) Fibre Channel ports per Host I/O card.
Fabric ports are optimized with full duplex operations and auto-negotiate
features.
■
Dual 2 Gb/sec disk side ports for high performance, failure resilient paths
to the drives. Full duplex operations optimize disk channels.
■
Capable of sustaining 350 MB/sec sequential RAID 5 reads and up to
100,000 IOPs in active-active configurations.
■
Support for up to 512 logical drives.
■
Support for RAID levels 0, 1, 5, 10, and 50.
■
Online capacity expansion allowing reconfiguration without interruptions.
■
Dynamic Drive Addressing where the drives do not require hard
addressing, allowing for increased flexibility in configurations.
■
Built-in support for drive firmware updates, allowing one or several disk
drives to be updated in parallel.
■
Host-based StorView Management Suite software. StorView is the
GUI-based software that provides the robust and easy-to-use configuration
and monitoring tool.
■
VT-100 interface for configuration and monitoring.
■
Controller firmware updates can be accomplished through a VT-100
terminal or StorView Storage Management Software.
■
Host clustering support for maximum data availability.
4900F.book Page x Wednesday, May 18, 2005 10:07 AM

1
Chapter 1
Getting Started
This chapter provides a description of the enclosure components and its onboard
monitoring systems.
The Components section discusses the major enclosure components. The
Monitoring section describes the enclosure’s LEDs, and the manner in which
normal and abnormal conditions are presented.
NexStor 4900F Series RAID Storage System
RESETALARM
RESETALARM
Tower Model
Rack-Mount Model
4900F.book Page 1 Wednesday, May 18, 2005 10:07 AM

Chapter 1 - Getting Started
At a Glance
2
At a Glance
The following illustrations show the featured components of the NexStor 4900F
Series RAID Storage System. Familiarize yourself with its components prior to
installing and using the storage system.
Component Views
SES CONTROLLER
PART NUMBER 08-9-96322001
ARTWORK REVISION -1
JP1
JP2
RS-232
A
D
0
A
D
1
A
D
2
S
P
1
S
P
2
B
D
R
D
L
Y
R
M
T
SES
D1
DISKI/O
D2
Tx Tx
Tx
Fibre Disk IO LRC
P/N 08-9-96318001
A/W Rev-1
INSTALL JUMPERS 1 & 2
FOR HARDWARE
FAI LURE DETECT
ADD JUMPER FOR
1G OPERATION
JP2
JP2
JP3
JP1
ADD JUMPER FOR
SPLIT BUS MODE
D1
DISKI/O
D2
TxTx
Tx
FibreDiskIOLRC
P/N08-9-96318001
A/WRev-1
INSTALLJUMPERS1&2
FORHARDWARE
FAILUREDETECT
ADDJUMPERFOR
1GOPERATION
JP2
JP2
JP3
JP1
ADDJUMPERFOR
SPLITBUSMODE
PWR
PRTNR
H1L
H0L
D1L
D0L
DRT
OVR
CUR
H1A
H0A
D1A
D0A
TEST
ONL
YSERVICE
NETWORK
PWR
PRTNR
H1L
H0L
D1L
D0L
DRT
OVR
CUR
H1A
H0A
D1A
D0A
TEST
ONL
YSERVICE
NETWORK
H
OST
I/O
OKOK
2G
SWITCHCONNECTIOONS
PIN 1 - 1G/2G
PIN 2 WAHOO
PIN 3 - HUBFAILOVER
PIN 4 - C0C1_ENB
PIN 5 - C0CH0CH1_ENB
PIN 6 - VCC
PIN 7 - VCC
PIN 8 - VCC
FIBREHOSTIO
P/N08-9-96319001
A/WREV-1
H
OST
I/O
OKOK
2G
SWITCHCONNECTIOONS
PIN 1 - 1G/2G
PIN 2 WAHOO
PIN 3 - HUBFAILOVER
PIN 4 - C0C1_ENB
PIN 5 - C0CH0CH1_ENB
PIN 6 - VCC
PIN 7 - VCC
PIN 8 - VCC
FIBREHOSTIO
P/N08-9-96319001
A/WREV-1
350-watt hot-pluggable
independent power supplies
(AC PSU's are displayed)
Dual in-line 80-CFM hot
swappable cooling fans
SES Controller Card
Disk I/O Cards
Host I/O Cards
H1
H0 H0 H1
Wahoo2 RAID Controllers
(shown with embedded
application module)
RESET ALARM
Drive Status LEDs
(left column of LEDs)
Power On LED
Channel Status LED
Power Supply Status LED
Fan Status LED
Alarm Reset Button
Drive Activity LEDs
(right column of LEDs)
4900F.book Page 2 Wednesday, May 18, 2005 10:07 AM

Chapter 1 - Getting Started
Components
3
Components
This section provides a description of each of the major components that
comprise the NexStor 4900F Series RAID Storage System.
Front Bezel
The front bezel houses the Status LEDs, Drive LEDs, and alarm reset button. When
removed, the user has access to the disk drives. The front bezel can be installed or
removed without interruption to system activities.
Embedded within the front bezel is the electronic package that provides the
communication with the SES Controller. The SES Controller manages the signals to
the front panel through a smart interface. Power is applied to the front bezel
through the interface edge connector, where a control circuit monitors the bezel
for proper connection. When the bezel is properly installed and power is applied
to the enclosure, the bezel is immediately energized.
Refer to “Control and Monitoring” on page 21 for details on the monitoring
functions.
Removable Front Bezel
To remove the bezel and gain access to the disk drives, use a Phillips screwdriver
to release both bezel fasteners, then grasp and remove the bezel. The fasteners
rotate one-quarter turn clockwise to lock and counter-clockwise to unlock.
Reset Alarm
Drive LEDs
Alarm Reset Button
Status LEDs
4900F.book Page 3 Wednesday, May 18, 2005 10:07 AM

Chapter 1 - Getting Started
Power System
4
Power System
Standard AC Hot Swappable Power Supplies
The AC power system consists of two 350-watt hot-pluggable power supplies, each
with independent AC power cords and cooling fans. This power system provides
the enclosure with “N+1” redundant power. Each power supply has auto-switching
circuitry for use with either 100V or 240V AC systems.
AC Power Supply
Power is applied to the enclosure by pressing the power supply On/Off switch to
the “On” position. A Power On LED located on each power supply will be
illuminated indicating that AC power has been applied. The front bezels’ Power
On LED will also be illuminated indicating that power has been applied.
Each power supply also incorporates an amber general Fault LED. If the power
supply is installed and power is not applied to the power supply or the power
supply cooling fan fails, the Fault LED will illuminate, along with an audible alarm.
The front bezels’ Power Supply Status LED will illuminate green when both
power supplies are on and operating normally. If only one power supply is
operational, the Power Supply Status LED will be illuminated amber.
Each power supply has an AC Power Cord Module. The module has a power
cord bale incorporated into the design to secure the power cord once it has been
properly inserted. The bale prevents inadvertent disconnects.
Power On LED
(green)
Fault LED
(amber)
Release
Latch
Power Connector
Module
4900F.book Page 4 Wednesday, May 18, 2005 10:07 AM

Chapter 1 - Getting Started
Optional DC Hot Swappable Power Supplies
5
Optional DC Hot Swappable Power Supplies
The DC power system is designed to allow the storage system to be installed with
Telco system hardware installations. It consists of two 350-watt hot-pluggable
power supplies, each with independent DC power cables and cooling fans. It
provides the enclosure with “N+1” redundant power with Telco hardware. Each
power supply cables directly with your DC power feed system.
DC Power Supply
The DC power supply has the same user features to that of the AC Hot
Swappable Power Supplies described on the previous page.
NOTE: The DC system must be installed in a restricted access location, in
accordance with intent of the National Electrical Code. A restricted access
location is defined as an area intended only for qualified or trained
personnel only. Access should be controlled by key lock or access card.
Each power supply has a special cable connector that plugs into the face of the
power supply and mechanically connects to your DC feed system. Refer to the
Installation chapter for cabling procedures.
DC Source Site Requirements
Electrical Equipment Requirement
Voltage -36 to -72 VDC
Max. Operating Current 13.5 amp to 6.3 amps
Max. Input Surge Current 20.25 amps
Power On LED
(green)
Fault LED
(amber)
Release
Latch
Power Connector
4900F.book Page 5 Wednesday, May 18, 2005 10:07 AM

Chapter 1 - Getting Started
Optional DC Hot Swappable Power Supplies
6
The power feed must be electrically isolated from any AC power source, provide
a reliable connection to earth (battery room positive bus is connected to the
grounding electrode), and capable of providing up to 600 watts of continuous
power per feed pair.
Overcurrent Protection Requirements
Overcurrent protection devices must be provided as part of each equipment rack.
Circuit breakers must be located between the DC power feed source and the
power supplies (two 20 amp double-pole fast rip DC-rated circuit breakers for
each power supply).
NOTE: Overcurrent protection devices must meet applicable national and local
electrical safety codes and be approved for the intended application.
Power supply overload protection will shut down the power supply when the
output power rating exceeds 110% to 130% of maximum rated output current.
DC Supply and Ground
You DC supply and ground conductor must meet the following requirements:
■
Suitable conductor material: copper only.
■Power supply connections through the input connectors; 12AWG:
-48V
-48V Return
Ground to the power supply
■System ground conductor: 8 AWG.
■Cable insulation rating: minimum of 75 C, low smoke fume (LSF), flame
retardant.
■Branch circuit cable insulation color: per applicable national electrical
codes.
■Cable type: UL style 1028, UL 1581(VW-1), IEEE 383 compliant, or IEEE
1202-1991 compliant.
■Grounding insulation color: green/yellow.
4900F.book Page 6 Wednesday, May 18, 2005 10:07 AM