First Virtual Communications Voyager 3000 User Manual
Voyager 3000
10-November-1997
SCSI RAID Storage Array
User’s Manual
MAN-VRA3000UG-1
Revision A4_1
Contents
Chapter One...........................................................................................................................1-1
Introduction.......................................................................................................................1-1
Voyager 3000 Family...................................................................................................1-1
VRA-3001T-XX-Y .................................................................................................1-2
VRA-3002T-XX-Y .................................................................................................1-3
VRA-3001R-XX-Y.................................................................................................1-5
VRA-3002R-XX-Y.................................................................................................1-6
Options....................................................................................................................1-7
System Features............................................................................................................1-7
Device Carrier.........................................................................................................1-7
Cooling....................................................................................................................1-7
RAID Controller......................................................................................................1-7
Power Supplies........................................................................................................1-8
SCSI Connectors .....................................................................................................1-8
RAID Basics.................................................................................................................1-9
RAID 0....................................................................................................................1-9
RAID 1 / 0+1...........................................................................................................1-9
RAID 3..................................................................................................................1-10
RAID 5..................................................................................................................1-10
Required Number of Drives and Net Capacity......................................................1-10
Chapter Two...........................................................................................................................2-1
Installation and Setup........................................................................................................2-1
Unpacking and Initial Setup.........................................................................................2-1
Recommendations for installation of rackmount systems in 19” racks........................2-1
Ambient Temperature..............................................................................................2-1
Air Flow ..................................................................................................................2-1
Mechanical Loading................................................................................................2-1
Electrical Considerations.........................................................................................2-2
Grounding ...............................................................................................................2-2
Setting the host SCSI Ids..............................................................................................2-3
Setting the target SCSI Ids ...........................................................................................2-3
Setting the target SCSI Ids on a VRA-3001 system.................................................2-3
Setting the target SCSI Ids on a VRA-3002 system.................................................2-5
Cabling and Termination Issues...................................................................................2-8
Components .................................................................................................................2-9
Power Supplies........................................................................................................2-9
Devices....................................................................................................................2-9
Power Option Board..............................................................................................2-10
Controller ..............................................................................................................2-10
Advanced Cooling Modules..................................................................................2-12
Component Insertion and removal .............................................................................2-13
Drive Insertion.......................................................................................................2-13
Drive Removal ......................................................................................................2-13
PSU Insertion and Removal ..................................................................................2-14
Controller Insertion and Removal..........................................................................2-14
Chapter Three.........................................................................................................................3-1
EMU .................................................................................................................................3-1
Environmental Monitoring Unit Configurations..........................................................3-1
Introduction.............................................................................................................3-1
ii
EMU Features .........................................................................................................3-1
System Configurations.................................................................................................3-2
Setting up the EMU.................................................................................................3-3
Available EMU information....................................................................................3-5
Interpreting the EMU LED Feedback......................................................................3-6
Connecting the EMU ...................................................................................................3-7
Chapter Four..........................................................................................................................4-1
RAID controller configuration ..........................................................................................4-1
Controller Description..................................................................................................4-1
Controller Configuration..............................................................................................4-1
Accessing the VOYAGER 3000 Menus.......................................................................4-2
Connecting a Monitor .............................................................................................4-2
Creating a logical volume........................................................................................4-6
Creating a Second Logical Volume............................................................................4-11
Adding a Global Spare...............................................................................................4-12
Partitioning a Logical Volume ...................................................................................4-13
Mapping Host LUNs..................................................................................................4-14
De-assigning LUN Mapping......................................................................................4-16
Scan New SCSI Drives...............................................................................................4-16
View and Edit logical drives......................................................................................4-17
View and Edit SCSI Drives........................................................................................4-17
View and Edit SCSI Channels....................................................................................4-18
View and Edit Configuration Parameters ................................................................... 4-20
View and Edit Peripheral Devices..............................................................................4-21
System Functions.......................................................................................................4-21
Down Loading New Firmware ...................................................................................4-21
View System Information...........................................................................................4-22
Quick Installation.......................................................................................................4-22
Chapter Five...........................................................................................................................5-1
Front Panel Operation .......................................................................................................5-1
Creating a New Logical Drive......................................................................................5-1
Viewing Disks Assigned to a Logical Drive.................................................................5-2
Assigning a Spare Drive...............................................................................................5-3
Mapping a Logical Drive to a Host Channel and LUN ...............................................5-3
Deleting a Logical Drive .........................................................................................5-4
Setting the SCSI Channels ...........................................................................................5-4
Channel Terminator Setting ...................................................................................5-5
SCSI Reset at Power-Up Setting .............................................................................5-6
Sequential Drive Spin-Up Setting ...........................................................................5-6
Data Cache Setting..................................................................................................5-6
Viewing Connected Drives...........................................................................................5-6
Adding New Drives into Current List ..........................................................................5-7
Issuing a Reset..............................................................................................................5-7
Serial Number ..............................................................................................................5-7
Download Firmware.....................................................................................................5-7
iii
Figures
Figure 1-1 VRA-3001T-XX-Y Single Tower.........................................................................1-2
Figure 1-2 Internal bus configuration of VRA-3001T-XX-Y.................................................1-3
Figure 1-3 VRA-3002T-XX-Y Twin Tower ..........................................................................1-3
Figure 1-4 VRA-3002T-XX-Y SCSI target interconnects......................................................1-4
Figure 1-5 VRA-3001R-FW-Y example configuration..........................................................1-5
Figure 1-6 VRA-3002R-FW-Y example configuration..........................................................1-6
Figure 1-7 Device Carrier ......................................................................................................1-7
Figure 1-8 PSU mounted in removable canister.....................................................................1-8
Figure 2-1 Grounding shelves within a 19" cabinet...............................................................2-2
Figure 2-2 Rear view of rack showing ground point..............................................................2-3
Figure 2-3 Rear view of single tower showing host connections............................................2-4
Figure 2-4 Rear view showing ACMs, cowl and shield.........................................................2-4
Figure 2-5 Setting the Target Bus SCSI IDs...........................................................................2-5
Figure 2-6 Setting the RAID Target Bus SCSI IDs................................................................2-5
Figure 2-7 Location of DPS1 on VRA-3002 second backplane.............................................2-6
Figure 2-8 SCSI ID Switch (DPS1)........................................................................................2-7
Figure 2-9 Removal and insertion of a Power Supply Unit...................................................2-9
Figure 2-10 Device carrier .....................................................................................................2-9
Figure 2-11 RAID Controller...............................................................................................2-11
Figure 2-12 Main board access............................................................................................2-11
Figure 2-13 Installing SIMMs..............................................................................................2-12
Figure 2-14 Removing the back face plate...........................................................................2-12
Figure 2-15 Rear view of ACM assembly............................................................................2-13
Figure 3-1 Single shelf EMU configuration...........................................................................3-2
Figure 3-2 Dual shelf EMU configuration .............................................................................3-2
Figure 3-3 Location of EMU within the shelf........................................................................3-3
Figure 3-4 EMU PCB layout..................................................................................................3-3
Figure 3-5 Connecting the EMUs together ...........................................................................3-7
Figure 4-1 Front view of controller (within a canister) ..........................................................4-1
Figure 4-2 Logical View of VOYAGER 3001.......................................................................4-2
Figure 4-3 Windows Program Manager.................................................................................4-3
Figure 4-4 Windows Terminal Program (Main Menu)...........................................................4-3
Figure 4-5 Setting Windows Terminal Emulation..................................................................4-4
Figure 4-6 Setting Windows Terminal Preferences................................................................4-4
Figure 4-7 Windows Terminal Preferences Screen ................................................................4-5
Figure 4-8 Windows Terminal Communications Settings......................................................4-5
Figure 4-9 Windows Terminal Communication Settings.......................................................4-6
Figure 4-10 Initial Screen.......................................................................................................4-7
Figure 4-11 Main Menu Screen .............................................................................................4-7
Figure 4-12 Verifying Drive Configuration ...........................................................................4-8
Figure 4-13 View and edit Logical Drives Screen..................................................................4-8
Figure 4-14 Creating a logical drive.......................................................................................4-9
Figure 4-15 Selecting the logical drive's RAID level .............................................................4-9
Figure 4-16 Selecting drives for inclusion in a RAID set.....................................................4-10
Figure 4-17 Setting the maximum drive capacity. ...............................................................4-10
Figure 4-18 Logical drive creation confirmation screen.......................................................4-10
Figure 4-19 Progress of RAID set creation...........................................................................4-11
Figure 4-20 Creating a RAID 1 volume...............................................................................4-11
iv
Figure 4-21 Selecting two drives to form a RAID 1 set .......................................................4-11
Figure 4-22 Viewing all Logical Drives..............................................................................4-12
Figure 4-23 Adding Global Spare drive..............................................................................4-12
Figure 4-24 Allocating Capacities to partitions....................................................................4-13
Figure 4-25 Logical Drive Partition Table ...........................................................................4-13
Figure 4-26 Allocating capacities to partitions ....................................................................4-13
Figure 4-27 Mapping Host LUNs .......................................................................................4-14
Figure 4-28 LUN Partition table .........................................................................................4-14
Figure 4-29 Selecting a Volume for LUN mapping .............................................................4-15
Figure 4-30 Selecting a partition for LUN mapping ............................................................4-15
Figure 4-31 Mapping Logical Volume 0 Partition 1 to Channel 2 LUN 1...........................4-15
Figure 4-32 Logical mapping of all partitions......................................................................4-16
Figure 4-33 List and status of drives on system...................................................................4-16
Figure 4-34 Scanning SCSI drives......................................................................................4-16
Figure 4-35 View and edit scsi drives..................................................................................4-17
Figure 4-36 View and edit SCSI channels............................................................................4-18
Figure 4-37 View and edit SCSI target ................................................................................4-19
Figure 4-38 View and edit configuration parameters...........................................................4-20
Figure 4-39 Uploading the code using ZMODEM protocol.................................................4-21
Figure 4-40 View system information..................................................................................4-22
Figure 4-41 Quick Installation .............................................................................................4-22
v
Tables
Table 1-1 Voyager 3000 Tower configurations......................................................................1-1
Table 1-2 Voyager 3000 Rackmountable configurations.......................................................1-1
Table 1-3 Voyager 3000 Fault Tolerant configurations .........................................................1-1
Table 1-4 Host Connection Codes .........................................................................................1-2
Table 1-5 RAID 0 layout........................................................................................................1-9
Table 1-6 RAID 0+1 layout....................................................................................................1-9
Table 1-7 RAID 3 layout......................................................................................................1-10
Table 1-8 RAID 5 layout......................................................................................................1-10
Table 1-9 Minimum drives necessary for a RAID set..........................................................1-10
Table 2-1 SCSI ID switch settings for the second backplane in a VRA-3002 configuration. 2-8
Table 2-2 Cable Lengths Vs Transfer Rates...........................................................................2-9
Table 2-3 Device carrier Device Part Numbers....................................................................2-10
Table 2-4 Power Option Board Switch Definitions..............................................................2-10
Table 3-1 EMU Switch Settings.............................................................................................3-4
Table 3-2 ID settings for the EMU........................................................................................3-4
Table 3-3 Power Sequencing Signals.....................................................................................3-5
Table 3-4 Read Only Memory locations within the EMU......................................................3-5
Table 3-5 Read/Write locations within the EMU...................................................................3-5
Table 3-6 Devices/events monitored by the EMU..................................................................3-6
Table 3-7 Interpreting the EMU LED feedback.....................................................................3-6
Table 4-1 RS232 Terminal Settings.......................................................................................4-2
vi
Scope
This manual details the installation and configuration of Eurologic’s Voyager 3000 RAID
storage arrays.
vii
Disclaimer
EUROLOGIC reserves the right to make changes to this manual and the equipment described
herein without notice. EUROLOGIC has made all reasonable efforts to insure that the
information in this manual is accurate and complete. However, EUROLOGIC shall not be
liable for any technical or editorial errors or omissions made herein or for incidental, special,
or consequential damage of whatsoever nature resulting from the furnishing of this manual, or
operation and performance of equipment in connection with this manual.
All Trademarks acknowledged.
viii
Warranty
BASIC WARRANTY—In the absence of any optional warranty or continuing provisions by
formal agreement, EUROLOGIC warrants its products in accordance with the schedules listed
below. Purchaser hereafter mentioned refers at all times to the customer who purchased
EUROLOGIC product(s).
VOYAGER WARRANTY—EUROLOGIC warrants Voyager products of its manufacture to
be free from defect in material and workmanship for a period of one year from the date of
shipment. During this period, if the customer experiences difficulties with a EUROLOGIC
Voyager system and is unable to resolve the problem via phone with EUROLOGIC Technical
Support a Return Material Authorization (RMA) will be issued for the faulty component.
Following receipt of an RMA, the Purchaser is responsible for returning the product to
EUROLOGIC, freight prepaid. EUROLOGIC, upon verification of warranty, will repair or
replace at its option the Voyager component in question, and will then return the product to
the Purchaser, freight prepaid.
CABLE WARRANTY—All EUROLOGIC provided cables are warranted for ninety (90)
days from the time of shipment. Questionable cables should be returned to EUROLOGIC,
freight prepaid where they will be repaired or replaced by EUROLOGIC at its option and
returned to the Purchaser, freight prepaid.
GENERAL TERMS—The above warranties shall not apply to expendable components such
as fuses, bulbs, and the like, nor to connectors, adapters, and other items not a part of the
basic product. EUROLOGIC shall have no obligation to make repairs or to cause replacement
required through normal wear and tear or necessitated in whole or in part by catastrophe, fault
or negligence of the user, improper or unauthorized use of the product, or use of the product in
such a manner for which it was not designed, or by causes external to the product, such as, but
not limited to, power failure or air conditioning. EUROLOGIC's sole obligation hereunder
shall be to repair or replace any defective product, and, unless stated, pay return transportation
costs for such replacement. Purchaser shall provide labor for removal of the defective
product, shipping charges for return to EUROLOGIC and installation of its replacement. Onsite services are not a part of this warranty. Above warranties are subject to change without
notice.
RETURNED MATERIAL—Warranty claims must be received by EUROLOGIC within the
applicable warranty period. A replaced product, or part thereof, shall become the property of
EUROLOGIC and shall be returned to EUROLOGIC at Purchaser's expense. All returned
material must be accompanied by a Return Materials Authorization (RMA) number assigned
by EUROLOGIC. For RMA numbers contact EUROLOGIC at :
Telephone + 353 -1-2958366
FAX + 353-1-2958433
e-mail rma@eurologic.com
ix
THE EXPRESSED WARRANTIES SET FORTH IN THIS AGREEMENT ARE IN LIEU OF
ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WITHOUT
LIMITATION, ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE, AND ALL SUCH OTHER WARRANTIES ARE HEREBY
DISCLAIMED AND EXCLUDED BY EUROLOGIC. THESE STANDARD EXPRESS
WARRANTIES ARE IN LIEU OF ALL OBLIGATIONS OR LIABILITIES ON THE PART
OF EUROLOGIC FOR DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL,
INDIRECT OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR IN CONNECTION
WITH THE USE OR PERFORMANCE OF THE PRODUCT.
x
Chapter One
Introduction
Voyager 3000 Family
The Voyager 3000 is a cost effective open architecture RAID solution. All Voyager 3000
systems include 8MB EDO cache memory, redundant power supplies (PSUs) and dual
advanced cooling modules (ACM’s) per shelf as standard. The Voyager 3000 series is
available in tower, rackmount and fault tolerant solutions1 . The model number and
descriptions are shown in Table 1-1, Table 1-2 and Table 1-3. The XX suffix refers to the host
connection and a key is shown in Table 1-4. The “Y” suffix refers to the power supply voltage
where a value of “1” is the 110V option and a value of “2” is the 220/240V option.
Components such as disk drives, power supplies and controllers are housed in easily
removable canisters which make up the base building blocks of the system. A shelf consists of
nine bays housing nine of these canisters. A shelf is mounted vertically in the single and dual
tower configurations and horizontally in the case of rackmounted systems.
The Voyager 3000 includes an integrated RAID controller which is independent of the host
system and only requires a host SCSI bus for connectivity.
The Voyager 3000 tower configurations are:
Table 1-1 Voyager 3000 Tower configurations
Model Number Description
VRA-3001T-XX-Y Single tower RAID, 6 storage bays, 1 controller, 1 host
VRA-3002T-XX-Y Twin tower RAID, 13 storage bays, 1 controller, 1 host
The Voyager 3000 rackmountable configurations are:
Table 1-2 Voyager 3000 Rackmountable configurations
Model Number Description
VRA-3001R-XX-Y Single shelf RAID, 6 storage bays, 1 controller, 1 host
VRA-3002R-XX-Y Twin shelf RAID, 13 storage bays, 1 controller, 1 host
The Voyager 3000 fault tolerant solutions are:
Table 1-3 Voyager 3000 Fault Tolerant configurations
Model Number Description
VRA-3002TFT-XX-Y Twin tower RAID, 12 storage bays, 2 controllers, 1 host
VRA-3002RFT-XX-Y Rackmount shelf RAID, 12 storage bays, 2 controllers, 1 host
1
This a future option. Contact Eurologic for availability.
Voyager 3000 User Guide
Table 1-4 Host Connection Codes
FW Fast Wide single ended
FWD Fast wide differential
UW Ultra SCSI wide
UD Ultra SCSI wide differential
VRA-3001T-XX-Y
The VRA-3001T-XX-Y is typically used as an entry level RAID system where a large data
capacity is not required. The RAID controller is separate to the host system and is platform
independent. It is mandatory that a SCSI bus is available at the host side which will connect to
the host interface of the controller. A maximum external cable length between the VRA3001T-XX-Y and the host system is two metres in fast/wide single ended mode. Figure 1-1
shows the VRA-3001T-XX-Y configured as a single tower unit connected to a single host
system.
Figure 1-1 VRA-3001T-XX-Y Single Tower
The drives are connected to the RAID controller via two drive interfaces as shown in Figure 1-
2. The top three drives are connected to the first drive channel and the bottom three drives are
connected to the second drive channel.
1-2
Introduction
Figure 1-2 Internal bus configuration of VRA-3001T-XX-Y
VRA-3002T-XX-Y
This is a twin tower RAID configuration made up of a single controller and 13 drives as
shown in Figure 1-3.
Figure 1-3 VRA-3002T-XX-Y Twin Tower
1-3
Voyager 3000 User Guide
This system will typically be used in similar situations to that described within the VRA3001T-XX-Y section on page 1-2 but with larger capacity requirements.
The VRA-3002T-XX-Y is configured as two SCSI buses. The first SCSI channel is connected
to the top three drives in the first shelf (left hand side) which are set up as SCSI Ids 0à2. The
cable is then routed to the top four drives in the second shelf. These drives are set up as SCSI
Ids 3à6. The second channel is connected to the bottom three drives in the first shelf which
are configured as SCSI Ids 0à2 and looped to the second shelf to connect to the bottom three
drives which are set up at SCSI Ids 3à5. Refer to Figure 1-4 for a schematic view of the
interconnects. Each of the systems described are also available with differential host SCSI
buses giving an overall host cable length of 25 metres.
Figure 1-4 VRA-3002T-XX-Y SCSI target interconnects
1-4
Introduction
VRA-3001R-XX-Y
This system will be used in a rackmount configuration and will normally be part of an
expandable system. Customers can add rackmount systems subject to cabinet limitations.
Figure 1-5 shows three systems mounted in a standard 19” cabinet. Each shelf is similar in
configuration to the VRA-3001T-XX-Y described earlier and is made up of six storage bays, a
single host connection and one RAID controller. The shelves take 3 U of cabinet space. Each
system is connected to a shelf via its own SCSI bus.
Figure 1-5 VRA-3001R-FW-Y example configuration
1-5
Voyager 3000 User Guide
VRA-3002R-XX-Y
This system is similar to the VRA-3002T-XX-Y and is used for expandable storage. Each
shelf has a measurement of 3 U and may easily be integrated into a standard 19” rackmount
system. The system is made up of twin shelves, 13 storage bays, a single host connection and
one RAID controller. Figure 1-6 shows two hosts connected to two VRA-3002R-XX-Y
systems. In this and the previous case the hosts are completely separate entities and do not
share the data in any way.
Figure 1-6 VRA-3002R-FW-Y example configuration
1-6
Introduction
Options
RCM-RC1-CD Vision Software - Availability to be announced
VSA-401TE-Y Single tower expansion kit for VRA-3001T - 1 shelf, 7
storage bays
VSA-401RE-Y Single rackmountable expansion kit for VRA-3001R - 1
shelf, 7 storage bays
MEM-72P016MEDO-60 16 MB EDO SIMM module for Voyager 3000 series
MEM-72P032MEDO-60 32 MB EDO SIMM module for Voyager 3000 series
System Features
Device Carrier
Front loaded components such as the RAID controller and disk drives are housed in easily
removable device carriers. The device carrier is the basic building block of the series. The
device carriers are of high quality anodised metal construction. This allows for rapid heat
dissipation and conforms to the stringent requirements of CE, UL and FCC standards.
Figure 1-7 shows the device carrier.
Figure 1-7 Device Carrier
Cooling
All models feature two Advanced Cooling Modules (ACMs) per shelf. The modules are
mounted at the rear of the unit. One ACM is capable of cooling an entire shelf in the event of
a module failure.
RAID Controller
The VOYAGER 3000 controller’s main features are:
• Five operating modes:
Non-RAIDDisk Spanning
RAID-0 Striping
RAID-1 Mirroring
RAID-3 Block Striping w/ Dedicated Parity
RAID-5 Multiple Block Striping w/ Distributed Parity
1-7
Voyager 3000 User Guide
• Comprehensive failure management including:
Automatic bad sector reassignment
Hot-swapping
Global and Local Spare drive operation
Background rebuilding
• Works with any operating system without additional software drivers.
• Four types of daughter board:
--ELRC-9021WS: Wide, single-ended, 1 SCSI channel
--ELRC-9021WD: Wide, differential, 1 SCSI channel
--ELRC-9051UW: Ultra wide single-ended, 1 SCSI channel
--ELRC-9051UD: Ultra wide differential, 1 SCSI channel
• Up to 8 logical drives, each with independent RAID mode.
• Up to 8 partitions per logical drive2.
• Compatible and will automatically match any SCSI hard disks with SCSI-1, SCSI-2 or
Fast SCSI specification.
• Full SCSI-2 implementation including Tagged Command Queuing and Multi-Threaded
I/O.
• Uses 486 CPU with all executable firmware downloaded into high-speed DRAM.
• Firmware resides in easy-to-update Flash Memory.
• Up to 32 Mbytes of intelligent Read-Ahead/Write-Back cache.
• Front panel LCD and push buttons for configuration and message display.
• RS-232 interface for monitoring and configuration via a terminal.
Power Supplies
The VOYAGER 3000 uses two high performance power supply units per backplane. A single
power supply is rated at 180 Watts. Each power supply is rated at greater than 500,000 hours
MTBF with a second power supply providing full redundancy capabilities. The Power supply
units are housed in bays 8 through 9 within the cabinet and are mounted in removable shuttles
for ease of maintenance. Figure 1-8 shows a Power Supply Unit housed in the canister.
Figure 1-8 PSU mounted in removable canister
SCSI Connectors
SCSI connectors are of two types -
1. 68 Way MicroD High Density connectors for connection to external hosts.
2. SCA2 for internal peripheral connections.
2
A total maximum of eight logical drives are allowed e.g. 1 logical drive with eight partitions, 2 logical drives
with 4 partitions each etc.
1-8
Introduction
The industry standard SCA2 connector is used to interface between the device and the
backplane. SCA features staggered contact pins and insertion guidance. All signals such as
SCSI, Ids, Power etc. are carried through the SCA. This lowers cost, enhances reliability and
fully conforms to the Ultra SCSI specification.
RAID Basics
RAID stands for Redundant Array of Independent Disks3. Some of the advantages of using a
RAID storage subsystem are:
• Provides disk spanning by weaving all connected drives into one single volume.
• Increases disk access speed by breaking data into several blocks for reading/writing it to
several drives in parallel. With RAID, storage speed increases as more drives are added.
Without RAID, the speed slows down as more drives are installed.
• Provides fault-tolerance by mirroring or parity operation.
RAID 0
Block Striping - Data is broken into logical blocks, the size of a SCSI disk block, and striped
across several drives.
Drive 0 Drive 1 Drive 2 Drive 3 Drive 4
A0 A1 A2 A3 A4
B0 B1 B2 B3 B4
C0 C1 C2 C3 C4
D0 D1 D2 D3 D4
Table 1-5 RAID 0 layout
RAID 1 / 0+1
Mirroring and Striping - Copy of the same data is recorded into sets of striping drives. In the
event of failure, the duplicate set continues operation. Two drives implies a pure RAID 1
solution without the possibility of striping the mirrored drives. The equivalent capacity will be
that of a single drive. Four drives will appear with the layout as shown in Table 1-6 with the
equivalent capacity of two drives. Six drives will have the equivalent capacity of three drives
and so on. An even number of drives is required for this RAID level.
Table 1-6 RAID 0+1 layout
Set 1 Set 2
Drive 0 Drive 1 Drive 0 Drive 1
A0 A1 A0 A1
A2 A3 A2 A3
A4 B0 A4 B0
B1 B2 B1 B2
3
RAID Advisory Board Definition
1-9
Voyager 3000 User Guide
RAID 3
Block Striping with Dedicated Parity - Data is broken into logical blocks, the size of a SCSI
disk block, and striped across several drives. One drive is dedicated to parity. In the event of
failure, original data is re-generated from the parity information.
Table 1-7 RAID 3 layout
Drive 0 Drive 1 Drive 2 Drive 3 Drive 4
A0 A1 A2 A3 P
A4 B0 B1 B2 P
B3 B4 C0 C1 P
C2 C3 C4 D0 P
RAID 5
Multiple Block Striping with Distributed Parity - Sets a given number of logical blocks as a
unit for striping across several drives. For small read/write operations, one drive may be
activated for improved small record access speed. In this case we can process multiple I/O
requests simultaneously. Parity information is interleaved across the drive array. In the event
of failure, original data is regenerated from the parity information.
Table 1-8 RAID 5 layout
Drive 0 Drive 1 Drive 2 Drive 3 Drive 4
A0-A1 A2-A3 A4-B0 B1-B2 P
B3-B4 C0-C1 C2-C3 P C4-D0
D1-D2 D3-D4 P E0-E1 E2-E3
E4-F0 p F1-F2 F3-F4 G0-G1
Required Number of Drives and Net Capacity
The following table gives a summary of the minimum number of drives required and the
capacity available for the different types of RAID operation:
Table 1-9 Minimum drives necessary for a RAID set
OPERATION MIN. DRIVES
REQUIRED
RAID 0 2 T
RAID 1 2 T / 2
RAID 0 + 1 4 T / 2
RAID 3 3 T x (n - 1) / n
RAID 5 3 T x (n - 1) / n
CAPACITY
AVAILABLE
T = Sum of the capacity of all connected drives
n = Number of connected drives
1-10
Chapter Two
Installation and Setup
Unpacking and Initial Setup
On receipt of the system visually inspect the exterior of the packaging for any signs of
damage. If any damage is found the carrier and Eurologic must be notified immediately who
will advise you of the appropriate action. The cartons are sealed via packaging tape which
should be cut open in the normal manner. Remove the top foam layer from each box and
exercise caution when lifting out the components. At this point the contents should be verified
against the packing list and Eurologic should again be notified immediately if any
discrepancies exist. The devices and power supply units are packaged in anti-static packaging
and anti-static precautions must be observed prior to removal. The devices and power supply
units can now be inserted into the tower or shelf.
Prior to applying system power verify that the SCSI IDs are set up correctly as described in
Setting the SCSI IDs and that there is no conflict with any other devices on the SCSI bus.
Verify that the external cabling considerations have been met as described in Cabling and
termination issues.
Recommendations for installation of rackmount systems in
19” racks
It is essential that the following guidelines be complied with to ensure the safe and efficient
operation of VOYAGER 3000 rackmount computer equipment. Eurologic’s rackmount
systems may be installed in closed or open rackmount systems by observing the
environmental, electrical and mechanical precautions listed.
Ambient Temperature
Installation of rackmount systems in standard 19” cabinetry may lead to a differential between
the room ambient temperature and the internal ambient temperature of the rack environment.
The maximum operating temperature of the Voyager 3000 is 40 degrees centigrade, however
it is not recommended that the system is continuously run at these elevated temperatures.
Consideration should therefore be given to ensuring that the room ambient is compatible with
these specifications.
Air Flow
To ensure that the internal heat build up is adequately dissipated into the room environment,
air flow should in no way be restricted. It is essential that no vents or ducts are blocked, that
the system is a minimum of 1 metre away from a solid surface such as a wall or partition.
Airflow through the VOYAGER 3000 shelves is from front to rear.
Mechanical Loading
Consideration should be given to the loading of the cabinet. To maintain a low centre of
gravity (thus reducing the likelihood of instability) racks should be installed (where possible)
from the bottom of the cabinet upwards. This is essential to ensure personnel safety.
Voyager 3000 User Guide
Electrical Considerations
Circuit Overloading
Care should be taken to ensure that the current does not exceed the rating of the power source
circuitry. This includes cabling, power distribution units, filters and any other components
through which the main A/C flows. The power requirements of the Voyager 3000 shelf is
1Amp @200Volts and 2A @100Volts4 and must be added to the power demands of any other
electrical devices installed in the cabinet to arrive at a total power consumption figure. In
addition surge currents must be catered for. Disk devices normally consume twice the amount
of current at start up time as they do during steady state operation.
Grounding
Eurologic recommends that all rackmounted shelves be grounded to a common point in the
cabinet in a radial topology as shown in Figure 2-1.
Figure 2-1 Grounding shelves within a 19" cabinet
4
This figure may vary slightly depending on the redundancy mechanisms incorporated, the number of device
bays occupied and the device type occupying the bays.
2-2
Installation and Setup
A ground point for securing the braid is provided at the rear of the rack and is shown in Figure
2-2.
Figure 2-2 Rear view of rack showing ground point
Setting the host SCSI Ids
For information relating to setting up the host ID refer to page 4-18.
Setting the target SCSI Ids
This section refers to configuration of the SCSI target bus IDs on the backplane. These are
factory set when the system is shipped and should not normally be altered.
Setting the target SCSI Ids on a VRA-3001 system
There are two single switches mounted on the backplane and they are used to set the SCSI IDs
of both target buses . The switches which are accessible from the rear of the units sets the base
SCSI ID's for each bus.
To access the switch perform the following sequence of steps:
1. Remove the back face plate by removing the two Philips head screws as shown in Figure
2-3
2-3
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