EUROLOGIC SANbloc MAN-FC2000-RAID User manual

P/N: MAN-FC2000-RAID
Revision: 1.0
January 2001
Corporate Headquarters:
Eurologic Systems Ltd.,
Maple House,
South County Business Park,
Leopardstown,
Dublin 18,
Ireland.

Disclaimer
3
Disclaimer and Warranty
Disclaimer
EUROLOGIC reserves the right to make changes to this
manual and the equipment described herein without notice.
EUROLOGIC has made all reasonable effort 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.
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).
SANbloc Warranty - Eurologic warrants SANbloc
products of its manufacture to be free from defect in
material and workmanship for a period of three (3) years
from the date of shipment. During this period, if the
customer experiences difficulties with a EUROLOGIC
SANbloc system and is unable to resolve the problem via
phone with EUROLOGIC Technical Support a Return
Material Authorization (RMA) number will be issued for the
faulty component. Following receipt of an RMA, the
Purchaser is responsible for returning the product to

Warranty
4
EUROLOGIC, freight prepaid. EUROLOGIC, upon verifi-
cation of warranty, will repair or replace at its option the
SANbloc 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. On-site
services are not a part of this warranty. Above warranties are
subject to change without notice.

Warranty
5
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 accom-
panied by a Return Materials Authorization (RMA) number
assigned by EUROLOGIC. For RMA numbers contact
EUROLOGIC Customer Support at:
Telephone: [phone]
1 800 2184921 (U.S. Customers)
Fax: [phone]
email: [email protected]

Warranty
6
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.

7
Table of Contents
Disclaimer and Warranty...................................3
Disclaimer................................................................. 3
Warranty................................................................... 3
Preface..................................................................9
Audience................................................................... 9
Conventions Used In This User Guide..................... 9
Getting Support....................................................... 10
FCC Statement........................................................ 10
European Community Statement............................ 11
Chapter 1: Introduction....................................13
Hardware Information ............................................ 15
Main Processor ................................................... 17
Control Store Memory........................................ 17
Flash PROM ....................................................... 17
Scalable Cache Memory..................................... 17
UART.................................................................. 17
LED Signals........................................................ 18
Memory Controller/Hardware XOR Engine ...... 18
Fibre Channel ..................................................... 18
Controller Board Connectors.............................. 18
Power Conversion............................................... 18
Battery Backup Unit Board ................................ 19

8
Chapter 2: Installing a RAID Controller........21
Installing a RAID Controller .................................. 21
Installing a RAID Controller .............................. 21
Upgrading a JBOD Array to a RAID Array ........... 22
Equipment and parts necessary for upgrade ....... 22
Upgrading from JBOD to RAID......................... 22
Installing the Battery Backup Unit ......................... 24
Installing the Battery Backup Unit ..................... 24
Chapter 3: Fault Management.........................27
RAID Controller Status LEDs................................ 27
Fibre Channel Controller LED Definitions ........ 28
Appendix A: RAID Controller Specifications 29
Power ...................................................................... 29
Power Requirements........................................... 29
Power Connections............................................. 29
Input Noise.......................................................... 29
Environmental Specifications................................. 30
MTBF...................................................................... 30
Glossary of Terms..............................................31

Audience
9
Preface
This Installation Guide describes the installation and
operation of the SANbloc Series. The following products are
covered: SANbloc FC2100 Series (JBOD) and SANbloc
FC2500 Series (RAID).
Audience
This Installation Guide is intended for use by the person
installing and operating the SANbloc Series. This Instal-
lation Guide describes the operation of the SANbloc Series
only. For details relating to the host system, refer to the
documentation supplied with the host system.
Conventions Used In This User Guide
The following conventions are used throughout this Instal-
lation Guide.
Note: A NOTE gives general information, such as helpful tips
and references to related information.
CAUTION: A CAUTION means take care. There is a risk of caus-
ing damage to the equipment or losing data.
WARNING: A WARNING means beware. There is a risk of elec-
tric shock or personal injury. Before working on the Storage Array
be aware of the hazards that exist.

Getting Support
10
Getting Support
If you are having difficulties installing or operating your
SANbloc Series you can contact our World Wide Support
Centre for assistance at:
FCC Statement
WARNING: Changes or modifications to this unit not expressly
approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
This equipment has been tested and found to comply with
the limits for a class A digital device, pursuant to Part 15 of
the FCC Rules.
These limits are designed to provide reasonable protection
against harmful interference when operated in a commercial
environment.
This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accor-
dance with the instruction manual, may cause harmful inter-
ference to radio communications.
Operation of this equipment in a residential area is likely
to cause harmful interference, in which case, the user will be
required to correct the interference at his own expense.
Telephone: [phone] or
1-800-2184921 (from U.S only)
email: [email protected]
WWW http://www.eurologic.com/support

European Community Statement
11
Any changes or modifications to this equipment not
expressly approved by Eurologic Systems Ltd. could void
the user’s authority to operate this equipment.
European Community Statement
This equipment complies with the following European
directives:
EMC Directive 89/336/EEC and amending Directives 92/
31/EEC and 93/68/EEC Low Voltage Directive 73/23/EEC.

European Community Statement
12

13
Chapter 1: Introduction
The FC2500 Series RAID Controller is a high performance
fibre channel host to fibre channel disk RAID controller,
providing one fibre host channel and two fibre disk channels
conforming to the Fibre Channel Arbitrated Loop (FC-AL)
standards. The logical protocol used for both host and disk
communications is 100MB/s Fibre Channel Protocol (FCP)
SCSI over fibre.
The controller provides FC_AL host performance and fault
tolerant RAID disk operations for Fibre Channel (FC) disk
environments. The controller is an intelligent, caching
controller that supports RAID levels 0, 1, 3, 5, 0+1, JBOD,
30 and 50. The controller allows multiple host to access the
array of disk drives, which can be configured as one or more
virtual devices (logical units).
The controller permits continuous access to the data in the
event of a disk drive failure. The controller also provides
continuous access to data in the event of a controller failure.
This capability comes with a dual active controller system,
using two FC2500 controllers that share access to the same
array of disk drives. In the event of a controller failure, the
surviving controller through a fail-over process assumes
controller operations. The failed controller can then be
removed and replaced while the system is still on-line. The
new controller resumes processing array operations in a fail-
back process. During fail-over and fail-back, write cache
coherency is maintained with the disk drives.
The FC2500 supports an optional battery back-up unit
(BBU) for maintaining memory content in case of an AC
power failure. The principle purpose of the BBU is to

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provide ride-through during a power glitch; however, the
BBU is capable of sustaining memory content for hours at a
time.
The FC2500 is capable of monitoring a customer provided
UPS. The FC2500 controller fault management features are
based on the SCSI-3 Enclosure Services (SES) device
interface.
An SES firmware process handles all enclosure fault
management. The process polls the environment every ten
seconds. Failures with disk drives are handled by the
FC2500 controller firmware with other failures such as fans,
power supplies, and temperature sensors being handled
directly by the SES device. The FC2500 controller firmware
communicates with the SES device via Send Diagnostics and
Receive Diagnostics SCSI commands. The device elements
supported by the SES process include: device (disk drive),
power supply, cooling, temperature, Enclosure Services,
controller electronics, aubible alarm, and uninterruptible
power supply.

Hardware Information
15
Hardware Information
This section describes the FC2500 controller hardware.
Figure 1-1 shows a block diagram describing the controller
board functions. Each of the controller board components
are described here also.

Hardware Information
16
Figure 1-1 Block Diagram of Controller Board
DEVICE 0 DEVICE 1
FC_AL ISP
FC_AL ISP
64 BIT DEVICE PCI
Cache SDRAM
1 DIMM
128 - 256 MB
64 Bit
64 Bit
64 Bit
32 Bit
32 Bit
32 Bit
I2C
I2C
Host PCI
FC_AL ISP
Host
Hardware XOR ASIC
PCI Bridge
CS SDRAM
32MB
21285 Footbridge
SA110
Main CPU
PLD BBU
Flash
PROM
2MB
Flash
Emulator
Board NVRAM I2C
Controller
To
DIMM
To CS and
Cache SDRAM
PCI

Hardware Information
17
Main Processor The FC2500 RAID controller uses the 233MHz Intel SA
110 StrongARM processor.
Control Store
Memory The FC2500 RAID controller implements separate control
store and data cache memory. The control store memory is
dedicated to the processor and is located on the processor
local bus. The control store memory includes a 32MB 100
Mhz 36-bit parity-protected SDRAM
Flash PROM One 2MB flash PROM is provided on the controller board
for non-volatile storage of the operating program. The
SA100 boots from this Flash PROM space.
The Flash PROM device is preprogrammed in manufac-
turing, but can be updated via firmware download utilities.
In the event that a Flash PROM loses all of its contents,
including its download utilities, a Flash Emulator board can
be attached to the controller and the Flash PROM can be
restored by running code on the Emulator Board.
Scalable Cache
Memory The FC2500 RAID controller implements scalable data
cache memory on the controller and utilizes ECC protected
SDRAM. A single DIMM location accepts Eurologic-
qualified, 168-pin, 72-data bit, 100MHz, 3.3V, SDRAM
DIMMs. The controller design supports memory capacities
128MB and 256MB. Cache memory is also protected by the
Battery Backup Unit (BBU).
UART One UART provides a debug port operating at 19.2Kbps.
This port is used only for development and some field debug
situations.

Hardware Information
18
LED Signals No LEDs are provided on the controller board; however,
the following LED signals drive LEDs on the controller face
plate: Host Activity, Device Activity, Not Active (Amber),
Active (Green), Cache Dirty, Manufacturing Diags On and
Partner Fail.
Memory Controller/
Hardware XOR
Engine
The FC2500 RAID Controller uses an ASCI for cache data
transfer, RAID XOR functional control, and other propri-
etary functions.
Fibre Channel Three device ISPs each provide a 1GHz/sec FC_AL class 3
interface. These interfaces adhere to the Fibre Channel
Arbitrated Loop Direct Disk Attach Profile. One host ISP
supports full duplex, F-ports, IP, Class 2 and Multiple Target
IDs (MTIDs); the two remaining ISPs provide the disk inter-
faces.
Controller Board
Connectors The controller board has two 72-pin edge connectors: one
at the front and one at the rear of the board. The connectors
provide electrical connection to three fibre channels (one
host and two device), loop enable signals, multi-purpose
jumper signals, activity and status LED signals, RS232
signals, and the board power and ground signals.
Power Conversion The FC2500 RAID Controller operates on +5V input
power and internally converts +5V to 3.3V as needed. Input
power requirements conform to the SFF power limit.

Hardware Information
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Battery Backup Unit
Board A Battery Backup Unit (BBU) maintains memory content
in the event of an AC power failure. The main purpose of the
BBU is to provide AC power glitch ride-through, however,
the BBU is capable of sustaining memory content for an
extended period.
The BBU is designed to work with SDRAM memory, and
supports both the processor control store and ASIC cache
memory SDRAM. The BBU logic detects power loss on the
controller and switches the SDRAM to a self-refresh mode
while transparently switching the power input from +5V to
battery. The BBU can sustain memory content for at least 72
hours1under typical operating conditions.
1. This figure can be greater depending on the cache size.

Hardware Information
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