Compaq StorageWorks 4000 - RAID Array Guida di riferimento rapido

White Paper

July1999

0206-0699

Prepared byStorage Products

Division

Compaq Computer Corporation

Contents

Fibre Channel Storage

Systemto RAID Array4000........3

The RA4000 Storage System......3

Fibre Channel Host Adapter......3

Gigabit Interface Converters......4

Fibre Channel Storage Hubs.....4

RAID Array 4000........................5

RA4000 Controller.....................5

Deploying the RA4000.................6

Upgrading fromFCSS to

RA4000......................................6

Configuration Scenarios............7

Single Server/Single

Controller...................................8

Dual Servers/Single

Controller...................................9

Single Server/Dual

Controllers...............................10

Dual Servers/Dual

Controllers...............................11

Firmware....................................12

Operating Systems

Supported..................................12

Upgrading fromSingle

ControllerSolutions..................13

Windows NT 4.0 Installation

Instructions..............................13

NetWare Installation

Instructions..............................13

RA4000 Configuration...............14

Array Configuration Utility........14

Fibre Fault Isolation Utility........15

Compaq Redundancy

Manager (NT)..........................16

Compaq RAID Array 4000

Storage System: Deployment

and Configuration

Abstract:As the performance ofprocessors and peripherals

improves and companies increasinglymove to distributed

architectures while consolidating servers, the company's

administrators generate high-speed and data intensive network

applications. As a result, interconnects between servers and the I/O

devices theysupport have becomea management bottleneck.

Fibre Channel storage solutions shatter distance, connectivity,

capacity, and bandwidth limitations of SCSI. Fibre Channel allows

highlyscalable, high-performance storage solutions for the most

demandingapplications.Compaq believes Fibre Channel is the best

interconnect technologychoice for future storage solutions and has

developed the RAIDArray4000 (RA4000)Storage System, which is

based on this technology.

This paperdescribes how to:



Upgrade an existing single controller Fibre Channel Storage

Systemtothe dual controllerRA4000



Install an RA4000 with eithersingle ordual controllers



Deployfull redundancywith eithera Fibre Channel Storage

Systemoran RA4000

Formore information onFibre Channel technology,go to

http://www.compaq.com/products/servers/storage/fibre.html

Compaq RAIDArray4000StorageSystem: Deploymentand Configuration2

0206-0699

Notice

The information in this publicationis subject to change without notice and is provided “ASIS” WITHOUT

WARRANTY OFANY KIND. THE ENTIRE RISK ARISING OUT OFTHE USE OFTHIS

INFORMATION REMAINSWITH RECIPIENT. IN NO EVENT SHALLCOMPAQ BE LIABLEFOR

ANY DIRECT, CONSEQUENTIAL, INCIDENTAL,SPECIAL, PUNITIVE OR OTHER DAMAGES

WHATSOEVER (INCLUDING WITHOUT LIMITATION, DAMAGESFOR LOSSOFBUSINESS

PROFITS, BUSINESS INTERRUPTION OR LOSS OF BUSINESS INFORMATION), EVEN IF

COMPAQ HAS BEENADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

The limited warrantiesfor Compaq products are exclusively set forth in thedocumentation accompanying

such products. Nothingherein should be construed as constitutinga furtheror additionalwarranty.

Thispublicationdoes not constitute an endorsement ofthe product or products that were tested. The

configuration or configurationstestedor described mayor maynotbe theonlyavailable solution. Thistest

is not a determination or productqualityor correctness, nor does itensure compliance with anyfederal,

state, or localrequirements.

Product namesmentioned herein maybe trademarks and/or registered trademarks oftheir respective

companies.

Compaq, Contura, Deskpro, Fastart, Compaq Insight Manager, LTE, PageMarq, Systempro, Systempro/LT,

ProLiant, TwinTray, ROMPaq, LicensePaq,QVision, SLT, ProLinea, SmartStart, NetFlex, DirectPlus,

QuickFind, RemotePaq, BackPaq,TechPaq, SpeedPaq,QuickBack, PaqFax, Presario, SilentCool,

CompaqCare (design), Aero, SmartStation,MiniStation, PaqRap, AlphaServer, Tru64, and Alpha are

registered with the United States Patent and TrademarkOffice.

Netelligent, Armada, Cruiser, Concerto, QuickChoice, ProSignia, Systempro/XL, Net1, LTE Elite,

Vocalyst, PageMate, SoftPaq, FirstPaq, SolutionPaq, EasyPoint, EZ Help, MaxLight, MultiLock,

QuickBlank, QuickLock, UltraView, Innovate logo, Wonder Tools logo in black/white and color, and

Compaq PC Card Solution logo are trademarks and/or service marks of Compaq Computer Corporation.

Microsoft, Windows, Windows NT, Windows NT Server and Workstation, and Microsoft SQLServer for

Windows NT aretrademarks and/or registered trademarks of MicrosoftCorporation.

NetWare andNovell are registered trademarks and IntraNetWare, NDS, and Novell DirectoryServices are

trademarks of Novell, Inc.

Pentiumis a registeredtrademarkof IntelCorporation.

Compaq RAID Array4000 Storage System: Deployment and Configuration

White Paper prepared byStorage ProductsDivision

First Edition (July1999)

Document Number 0206-0699

Compaq RAIDArray4000StorageSystem: Deploymentand Configuration3

0206-0699

Fibre Channel Storage System to RAID

Array4000

The Compaq StorageWorks RAIDArray4000 (RA4000),formerlythe Fibre Channel Storage

System(FCSS), is an external storage solution incorporating Fibre Channel interconnect

technology. Compaq changed the name of the FCSS to the RA4000 toclearlyposition this

product within our line of external storage solutions and leverage the new rebranded

Storageworks. None of the functionalityof the FCSS has been reduced, in fact, Compaq has

added significant new features tothe RA4000.

With the RA4000,Compaq has implemented redundant controllersupport forboth the RA4000

and the FCSS forWindows NT4.0 and NetWare 4.x and 5.x.Redundant controllersupport

allows fordual fibre loop configurations and furtherreduces both planned and unplanned

downtime.

The FCSS controllerboard contained 32 megabytes ofcache forsystems manufactured before

September 15, 1998, and 64 megabytes of cache for systems manufactured after

September15,1998.The controllerboard forthe RA4000 system features 64 megabytes of

cache. With both systems, the arraycontroller is housed in the external storage cabinet. With the

RA4000, the customer can utilize two controller cards with the accompanying software.

The RA4000 Storage System

In its base configuration,an RA4000 storage system consists of the following components:

•AFibre Channel Host Adapter(installed in a Compaq X86 server)

•AFibre Channel StorageHub and required Fibre Channel interconnects

•One ormore RA4000s shipped standard with RA4000 Controllers

Adescription of each component is detailed in the sections below.

Fibre ChannelHost Adapter

The Compaq Fibre Channel Host Adapter is a high-speed host interface that provides

connectivityfromthe server to one ormultiple RA4000s via a Fibre Channel StorageHub.

The adapter is available in either a PCIversion or an EISAversion. The Fibre Channel Host

Adapter/P is a 33 MHz 32-bit PCIbus master device. The Fibre Channel Host Adapter/E is for

use in a serverequipped onlywith an EISA expansion bus orwith a server that has a majorityof

EISAbus slots. The Fibre Channel Host Adapter/E takes advantage of the EISAarchitecture by

performing32-bit bus masterburst transfers.

IMPORTANT: Both the PCIand EISAversions of the Fibre Channel Host Adapterrequire

installation of a gigabit interface converter module into the I/O port before the multi-mode fibre

cable is connected.

Compaq RAIDArray4000StorageSystem: Deploymentand Configuration4

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GigabitInterface Converters

Gigabit interface converters(GBICs)are industry-standard connection devices that hot pluginto

Fibre Channel storage hubs and controllers.AGBIC converts serial electrical signals toserial

optical signals for bi-directional transmission of data across the Fibre Channel media.

GBICs are available in two varieties:

•Short wave (GBIC-SW)–Forconnections up to500 meters.AGBIC-SWprovides a

transmission rate of100 megabytes persecond at distances up to500 meters using

50-micron, multi-mode fiber optic cables. 62.5-micron, multi-mode fiber optic cable is

alsosupported,but distances are limited to300 meters.

•Long wave (GBIC-LW)–For connections between 500 meters and 10 kilometers. A

GBIC-LWprovides a transmission rate of 100 megabytes per second at distances up to

10 kilometers of 9-micron, single-mode fiber optic cable. GBIC-LW are not currently

supported on Microsoft Cluster Server configurations.

Note: GBICs on both ends of anyFibre Channel cable link must be the same type. For example,

GBIC-SWmust link to GBIC-SWand GBIC-LWmust link toGBIC-LW. Intermixing short

wave types and long wave types on anysingle link is functionallyincompatible.

Fibre ChannelStorage Hubs

Fibre Channel Storage Hubs accept different cable types, allowing for intermixed cable pairs

within a topology, and use port bypass circuitrytokeep a Fibre Channel loop topologyintact.The

RA4000 can be configured usinga Fibre Channel StorageHub 7 ora Fibre Channel Storage

Hub 12.

FibreChannel Storage Hub 7

The Compaq Fibre Channel StorageHub 7 is a seven-port hub that creates a

100-megabytes-per-second Fibre Channel Arbitrated Loop through its internal wiring and logic.

Note: GBICs on both ends of anyFibre Channel cable link must be the same type. For example,

GBIC-SWmust link to GBIC-SWand GBIC-LWmust link toGBIC-LW. Intermixing short

wave types and long wave types on anysingle link is functionallyincompatible.

AFibre Channel StorageHub 7 is capable ofsupporting:

•Up tosixRA4000s perhub

•Up to72 spindles perserver slot

•Up to1.75 TBper serverslot

•Interconnect distances up to500 meters perlinkusingGBIC-SW

•Interconnect distanced up to10 kilometers per linkusingGBIC-LW

Compaq RAIDArray4000StorageSystem: Deploymentand Configuration5

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FibreChannel Storage Hub 12

The Compaq Fibre Channel StorageHub 12 is an intelligent, 12-port hub similar tothe Fibre

Channel Storage Hub 7.

AFibre Channel StorageHub 12 is capable ofsupporting:

•Up to11 RA4000s perhub.

•Up to132 spindles perserverslot.

•Up to3.2 TB perserver slot.

•Interconnect distances up to500 meters perlinkusingGBIC-SW.

•Interconnect distances up to10 kilometers perlinkusingGBIC-LW.

RAID Array4000

The RAIDArray4000 (RA4000)is an external drive enclosurecontaininga high-performance

RA4000 Controller,hot-pluggable hard diskdrives, fan assembly, and powersupplies.

The RA4000 allows you tosimultaneouslyscale capacity, cache, and processingpower. Each

RA4000 features optional hot-plugredundant powersupplies and fans.This arraysupports dual

controllers,which provide controllerfailoverredundancy.The RA4000 is available in tower or

4U rackformfactors and supports eight 1.6-inch or twelve 1-inch hard diskdrives fora total of

291.2 GBperenclosure using36.4 GB drives.

The numberofRA4000s that can be deployed in an RA4000 Storage Systemdepends on the

numberand configuration ofthe Fibre Channel StorageHubs.The numberand configuration of

the storage hubs depends on the numberofFibre Channel Host Adapters installed in the server.

Note: The Compaq RA4000 is drive traycompatible with Compaq X86 Servers and ProLiant

Storage Systems (Wide Ultra SCSI-3Hot Plug).

RA4000 Controller

The RA4000 Controller is an intelligent Fibre Channel-to-SCSI arraycontroller integrated into

the RA4000.The controller is based on the Compaq SmartArrayarchitecture and has two

Wide Ultra SCSI-3 channels. Each channel can transfer data at 40 megabytes per second for a

total of80 megabytes persecond possible internal bandwidth.The arraycontroller-to-host

interface is Fibre Channel for high-speed connection to the server. The Fibre Channel interface

can transferdata to the serverat burst rates of100 megabytes per second.

The RA4000 Controllersupports RAID levels 0, 0+1, 1, 4, and 5. Italsosupports multiple logical

drives with hot-swap capabilities and online capacityexpansion within the array. The controller

features sixth-generation Compaq RAID technologyand components and a total of 64 megabytes

of usable cache (16 megabytes read and 48 megabytes user-selectable read/write).

The RA4000 Controllersupports Wide-Ultra SCSI-3,Fast-Wide SCSI-2,orFast SCSI-2 drives.

Use ofSCSItechnologyinside the RA4000 allows customers to use existingSCSIdiskdrives.

Since hard disk drives are the most costlypart of a storage system, this compatibilitycan reduce

the cost ofimplementingan RA4000 Storage System.

Compaq RAIDArray4000StorageSystem: Deploymentand Configuration6

0206-0699

Deploying the RA4000

Upgradingfrom FCSS to RA4000

The RA4000 is an open solution that has been tested,proven,and optimized forseamless

integration and unmatched performance with Compaq X86 servers and critical applications. This

solution features a controller board with 64 megabytes of cache. The controller board in some

Fibre Channel Storage Systems (FCSS) contain 32 megabytes of cache.

Toupgrade yourFCSS toan RA4000,you must:

1.Ensure the cache sizes on your controller pairs are equal. Otherwise, your cache will be

disabled and performance will be reduced. Your alternatives are to pair controllers with either

32 MB or 64 MB caches or to upgrade an existing 32 MB cache controller with a 64 MB

cache. To do so, you must order and install the Compaq Fibre Channel ArrayController

64 MBCache Upgrade Kit (p/n 262398-B21).

IMPORTANT: When upgradingto the RA4000, make sure the cache sizes of the controller

boards match. If the cache sizes do not match, all of the cache will be disabled.

2.Install the new drivers and firmware included on SmartStart 4.3 or later.

3.If you are using Microsoft Windows NT (either clustered or nonclustered installations),

purchase the Compaq ProLiant ClusterHA/F200 kit.

Each integrated RA4000 Controller includes an enhanced ArrayAcceleratorwith a total of

64 megabytes of cache. Of that total, 16 megabytes is dedicated read cache that is integrated on

the base controller board. The remaining 48 megabytes of cache is user-selectable, battery-backed

read/write cache located on a small, removable board that plugs into the base controller.

One majoradvantage ofmigratingfroman FCSS to the RA4000 is that the customercan run two

controller cards, each with 64 megabytes of cache, with available software. In a redundant

configuration, if the active controller or other component fails or becomes inoperative, the

standbycontroller will take over, notifythe systemadministrator of the problem, and maintain

operation ofthe storage subsystem.Unplanned downtime is minimized.

An RA4000 can provide redundancyin eithera single serverenvironment orin a clustered server

environment.

In anytype ofserverenvironment,the RA4000(s)must have dual controllers installed toensure

controllerfailoverredundancy.With single controllers,there is nocontroller redundancyto

protect the data should a component fail.

Compaq RAIDArray4000StorageSystem: Deploymentand Configuration7

0206-0699

ConfigurationScenarios

Systemconfigurations varywidely,but RA4000s with dual controllers can be easilydeployed in

anyscenario with verylittle operating interruption. Customers can increase storage capacityand

achieve redundancyin an endless numberofconfiguration scenarios.Fourcommon

configurations are detailed below.

•Single Server/Single Controller. The system contains one server and one controller per

RA4000.There is noredundancyin this configuration.

•Dual Servers/Single Controller. The system contains two servers and one controller per

RA4000 runningMicrosoft Cluster Server or NetWare HighAvailabilityServer. There is no

storage system redundancyin this configuration.

•Single Server/Dual Controllers.The systemcontains one serverand two controllers per

RA4000 toprovide redundancy. Dual controllers bring controllerfailoverredundancyforthe

system to this scenario.

•Dual Servers/Dual Controllers.The systemcontains twoservers runningMicrosoft Cluster

Server or NetWare HighAvailabilityServer and twocontrollers per RA4000 toprovide

redundancy. Dual controllers and servers bringcontrollerfailoverredundancyforthe system

to this scenario.

Note: Single Server/Single Controller, Dual Servers/Single Controller, Single Server/Dual

Controllers,and Dual Servers/Dual Controllers, are not the onlyRA4000 configuration scenarios.

Systemconfigurations mayvarydependingon the customer’soperatingenvironment.

Incompatibilities in bus and drive mapping exist between Compaq ProLiant Storage Systems and

the RA4000 except for the F2orU2 models.For this reason,data stored on hard drives in a

ProLiant Storage SystemF2or U2 connected to a Smart ArrayController can be migrated

directlyto an RA4000 provided the HDDs are kept in the same physical orderand RA4000

ControllerFW1.14 or later is used.ForProLiant Storage Systems models F1,U1,and UE,

migratingstored data toan RA4000 requires a full backup and restore operation.Referto

www.compaq.com fordetails about migratingtoan RA4000 froma Compaq ProLiant Storage

System using Compaq Smart ArrayControllers.

Compaq RAIDArray4000StorageSystem: Deploymentand Configuration8

0206-0699

Single Server/Single Controller

Figure 1.RA4000 Storage SystemwithSingle Server/Single Controller

Customers deployinga single server or an entirelynew storage system with a single server/single

controllerconfiguration must:

1.Insert a GBIC into the Fibre Channel Host Adapter.

2.Install the Fibre Channel Host Adapter in the server.

3.Insert a GBIC into the Fibre Channel Storage Hub. Use a GBIC-SW if the connection to the

server is 500 meters or less, or a GBIC-LWif the connection to the server is between

500 meters and 10 kilometers.

IMPORTANT: Systems deployingGBIC-SWuse 50-micron,multi-mode fiberoptic cable.

Systems deploying GBIC-LWuse 9-micron,single-mode fiberoptic cable.

4.Connect a Fibre Channel StorageHub to the Fibre Channel Host Adapter.

5.InsertaGBIC intothe arraycontrollerat the RA4000.Use a GBIC-SWifthe connection to

the hub is 500 meters or less, or a GBIC-LWif the connection tothe hub is between

500 meters and 10 kilometers.

Note: The necessaryGBIC and the appropriate fiber optic cable are determined byindividual

customer needs and system design.

6.Connect the RA4000(s)tothe Fibre Channel StorageHub.

Note: In single-server environments,the servercan be connected directlyto the RA4000.

7.Run the Compaq Options ROMPaq. It is provided on the Compaq SmartStart and Support

Software CD 4.30 orlaterthat is shipped with the Compaq StorageWorks RA4000 and

RA4000 Redundant Controller.

Compaq RAIDArray4000StorageSystem: Deploymentand Configuration9

0206-0699

Dual Servers/Single Controller

Figure 2.RA4000 Storage SystemwithDual Server/Single Controller

Customers who onlyrequire a system with a single arraycontroller, maywant the flexibilityof a

system with two servers.

Customers migrating from a single server to a server cluster or deploying an entirelynew storage

system with a dual servers/single controller configuration must:

1.Insert a GBIC into the Fibre Channel Host Adapter.

2.Install the Fibre Channel Host Adapter into the added server or into both servers if the storage

system is entirelynew.

3.Insert a GBIC into the Fibre Channel Storage Hub. Use a GBIC-SW if the connection to the

server is 500 meters or less, or a GBIC-LWif the connection to the server is between

500 meters and 10 kilometers.

IMPORTANT: Systems deployingGBIC-SWuse 50-micron,multi-mode fiberoptic cable.

Systems deploying GBIC-LWuse 9-micron,single-mode fiberoptic cable.

4.Connect a Fibre Channel StorageHub to the Fibre Channel Host Adapters.

5.InsertaGBIC intothe arraycontrollerat the RA4000.Use a GBIC-SWifthe connection to

the hub is 500 meters or less, or a GBIC-LWif the connection tothe hub is between

500 meters and 10 kilometers.

Note: The necessaryGBIC and the appropriate fiber optic cable are determined byindividual

customer needs and system design.

6.Connect the RA4000 tothe Fibre Channel StorageHub.

7.Run the Compaq Options ROMPaq. It is provided on the Compaq SmartStart and Support

Software CD 4.30 orlaterthat is shipped with the Compaq StorageWorks RA4000 and

RA4000 Redundant Controller.

Compaq RAIDArray4000StorageSystem: Deploymentand Configuration10

0206-0699

Single Server/Dual Controllers

Figure 3.RA4000 Storage SystemwithSingle Server/Dual Controllers

Customers whowant a redundant storage system,but donotrequire a servercluster,can deploya

systemcontaininga single server/dual controllerdeployment scenario.

Customers deploying a single server or installing an entirelynew storage system with a single

server/dual controllers configuration must:

1.Insert a GBIC into twoFibre Channel Host Adapters.

2.Install the twoFibre Channel Host Adapters into the server.

3.Insert a GBIC into each of two Fibre Channel Storage Hubs. Use a GBIC-SW if the

connection tothe server is 500 meters orless,ora GBIC-LWifthe connection tothe serveris

between 500 meters and 10 kilometers.

IMPORTANT: Systems deployingGBIC-SWuse 50-micron,multi-mode fiberoptic cable.

Systems deploying GBIC-LWuse 9-micron,single-mode fiberoptic cable.

4.Connect a Fibre Channel Storage Hub to each Fibre Channel Host Adapter.

5.InsertaGBIC intoeach arraycontrollerat the RA4000(s).Use a GBIC-SWifthe connection

tothe hub is 500 meters or less, or a GBIC-LWif the connection tothe hub is between

500 meters and 10 kilometers.

IMPORTANT: One Fibre Channel linkperarraycontrolleris required.

Note: The necessaryGBIC and the appropriate fiber optic cable are determined byindividual

customer needs and system design.

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