easyRAID S16-F2R4 Instructions for use

easyRAID S16-U4R4
Ultra 320 SCSI to Serial ATA
Disk Array System
&
easyRAID S16-F2R4
Fibre Channel to Serial ATA
Disk Array System
Hardware User Manual

i
TableofContents
Preface.................................................................................................................. iii
Chapter1 Overview
Features ................................................................................................................2
Understanding RAID .............................................................................................3
Just a Bunch Of Disks ......................................................................................3
RAID Levels .....................................................................................................3
Hot Spare Disks ............................................................................................... 6
RAID Combinations ..........................................................................................6
Summary of RAID Levels .................................................................................7
System Requirements ...........................................................................................8
Operating Environment .................................................................................... 8
VT100 Terminal Settings ..................................................................................8
Host Interface ...................................................................................................8
Hard Disks ........................................................................................................9
Chapter2 BasicConfiguration
Unpacking ...........................................................................................................11
Components ........................................................................................................12
Front View ......................................................................................................12
Disk Tray ........................................................................................................13
Rear View ....................................................................................................... 14
Installing Disks ....................................................................................................15
Making Connections ...........................................................................................18
Connecting the Host Interface ........................................................................18
Connecting the RS-232 Cable ........................................................................19
Connecting and Turning on the Power ...........................................................20
Chapter3 Maintenance
Replacing a Disk .................................................................................................21
Replacing a Power Supply .................................................................................. 22
Replacing a Fan ..................................................................................................24
Upgrading Memory ............................................................................................. 26
Appendix
Hardware Specifications .....................................................................................31
Warnings and Certifications ................................................................................33

iii
Preface
AboutthisManual
This manual is designed to make the disk array system as easy to use as possible. Information
contained in this document has been checked for accuracy, but no guarantee is given that the con-
tents is correct. Information and specifications are subject to change without notice.
CopyrightNotice
© Copyright 2003
All rights reserved. This disk array system and related documentation are protected by copyright
and are distributed under licenses restricting their use, copying, and distribution. No part of this
documentation may be reproduced in any form by any means without prior written authorization
of the company and its licensors, if any.
Conventions
Caution
This symbol is used to remind users to pay attention to important
descriptions regarding usage and maintenance (repair) or additional
important information related to this disk array system.
Note
This symbol is used to remind users of useful information that can make
procedures such as configuration easier to accomplish.

iv
easyRAID S16 Serial ATA Disk Array Systems
Preface – Important Safety Instructions, Care and Handling
ImportantSafetyInstructions,CareandHandling
Before starting, take a few minutes to read this manual.
Read all of these instructions and save this manual for
later reference.
Protect the disk array system from extremely high or low
temperatures. Let the disk array system warm (or cool)
to room temperature before using it.
Protect the disk array system from being bumped or
dropped. Do not place the disk array system on an
unstable cart, stand, or table. It may fall, causing serious
damage to the product.
Keep the disk array system away from magnetic forces.
Do not use the disk array system near water.
Keep the disk array system away from dust, sand, or dirt.
Gaps and openings in the cabinet are provided for venti-
lation. Never block or cover these openings, because
the disk array system may overheat and become unreli-
able. Don’t place the disk array system on a bed, sofa,
rug, or other similar surface.
Do not place the disk array system near or over a radia-
tor or heat register.
Refer to the rating plate for the correct voltage and
ensure that the appliance voltage corresponds to the
supply voltage.
V

easyRAID S16 Serial ATA Disk Array Systems
v
Preface – Important Safety Instructions, Care and Handling
The appliance must be grounded. The disk array system
is equipped with a 3-wire grounded type of power cord.
This power cord will only fit into a grounded type of
power outlet.
If an extension cord or a power center is used with the
disk array system, make sure that the total current con-
sumption of all products plugged into the wall outlet
does not exceed the ampere rating.
Do not place the disk array system where the cord will
be walked on.
Never push any kind of object into the disk array system
through cabinet gaps and openings, since they may
touch dangerous voltage points and cause a risk of fire
or electric shock.
Unplug the power cord from the wall outlet before clean-
ing. Keep the disk array system dry. Do not use liquid
cleaners, aerosol cleaners, or a wet cloth. Use a damp
cloth for cleaning.
Except as specifically explained in this User Manual, do
not attempt to service the disk array system by yourself.
Opening or removing the covers may expose you to
dangerous voltages.
Unplug this product from the wall outlet and refer servic-
ing to qualified service personnel under the following
conditions.
• If the disk array system has been exposed to
water or any liquid.
• If the disk array system has been dropped or the
cabinet damaged.

vi
easyRAID S16 Serial ATA Disk Array Systems
Preface – Important Safety Instructions, Care and Handling
Placement Notes
• The disk array system LCD panel can be damaged by exposure to
direct sunlight. Limit exposure to subdued or indirect sunlight only.
• The disk array system should be used only in clean environments
that are free from airborne contaminants such as dust, dirt, and
smoke. Excessive moisture or oil particles in the air can also hinder
disk array system performance.
• To reduce the possibility of data errors caused by electromagnetic
interference, locate the disk array system at least five feet away
from electrical appliances and equipment that generates magnetic
fields.
Power Supply Safety Notes
• To avoid electric shocks, do not use an extended power cord or an
outlet that does not match the disk array system plug or leaves the
plug exposed.
• The disk array system has a 3-wire grounded plug. The third pin
connects to ground; do not remove it.
• If the power cord or plug is damaged or worn, unplug it immediately
and contact a qualified service technician for maintenance.
• To avoid fire or electric shocks, do not overload electric power out-
lets.

1
1 Overview
The disk array system uses groups of inex-
pensive disks to provide flexibility when
balancing data availability, access rate, and
capacity management needs.
High data availability is achieved by using
the fault tolerance features of RAID
(Redundant Array of Inexpensive Disks);
hot spare disks with automatic on-line
rebuild; hot swap disks, power supplies, and
fans; independent serial ATA (SATA) disk
controllers; and dual host controllers. Our
confidence in the disk array system is
backed by a three year warranty.
A high data access rate is achieved by combining the individual data rates of serial ATA disks in
a RAID configuration. Serial ATA disks lack some of the features of SCSI disks but are just as
fast when used with a high performance RAID controller. In the disk array system, RAID is con-
trolled by a high performance CPU, which transfers data through dual host interfaces at the max-
imum possible rate.
Flexible data capacity management is achieved with on-line RAID expansion, RAID capacity
division into slices, and multiple logical RAIDs. Management is performed through front panel,
or RS-232 interfaces.

2
easyRAID S16 Serial ATA Disk Array Systems
1 Overview – Features
Features
The main features of the disk array system are listed as follows. Refer to the specifications table
on page 31 for more detailed information.
• Operating system independent
• Up to eight JBOD, RAID 0, 1, 3, 5, 0+1, 30, or 50 array groups
• On-line expansion
• Allows division of array groups into slices, each mapped to a LUN
• Hot spare disk and automatic on-line rebuild
• Up to 16 hot swap serial ATA disks for a total capacity of 3.5 TB (terabytes)
• Three hot swap power supplies – if one fails, the others take over without interruption
• Two hot swap fans with intelligent speed and temperature management
• Sixteen 150 MB/s serial ATA channels
• Fast 64-bit RISC CPU based RAID controller with up to 1 GB of cache in an SO-DIMM
• Dual Ultra SCSI (ERX16S-U4R4) or fibre channel (ERX16S-F2R4) host interfaces
• Audible alarm, disk tray LED, and LCD panel failure indicators
• Configuration via the front panel and RS-232 interfaces