ASUS PIKE 2108 User Manual

PIKE 2108

LSISAS RAID card

User Guide

E6319

First Edition V1 January 2011

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Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the

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Contents

About this guide .......................................................................................... v

PIKE 2108 specications summary ......................................................... vii

Chapter 1: Product introduction

1.1 Welcome! ...................................................................................... 1-2

1.2 Package contents ......................................................................... 1-2

1.3 Card layout ................................................................................... 1-3

1.4 System requirements ................................................................... 1-3

1.5 Card installation ........................................................................... 1-4

Chapter 2: RAID conguration

2.1 Setting up RAID ............................................................................ 2-2

2.1.1 RAID denitions .............................................................. 2-2

2.1.2 Installing hard disk drives ................................................ 2-3

2.2 LSI WebBIOS Conguration Utility ............................................. 2-4

2.2.1 Starting the WebBIOS CU............................................... 2-5

2.2.2 WebBIOS CU main screen options ................................. 2-6

2.2.3 Creating a Storage Conguration ................................... 2-8

2.2.4 Viewing and Changing Device Properties ..................... 2-29

2.2.5 Viewing System Event Information ............................... 2-36

2.2.6 Managing Congurations .............................................. 2-37

2.3 MegaRAID Storage Manager ..................................................... 2-41

2.3.1 Hardware and Software Requirements ......................... 2-41

2.3.2 Installing MegaRAID Storage Manager Software on

Microsoft Windows OS .................................................. 2-41

2.3.3 Installing MegaRAID Storage Manager Software

for Linux ........................................................................ 2-45

2.3.4 Linux Error Messages ................................................... 2-46

2.3.5 Starting MegaRAID Storage Manager Software ........... 2-47

2.3.6 MegaRAID Storage Manager Window .......................... 2-49

Chapter 3: Driver installation

3.1 RAID driver installation ............................................................... 3-2

3.2 Windows® Server 2003 OS Driver Installation ........................... 3-4

3.2.1 During Windows® Server 2003 OS installation ............... 3-4

3.2.2 After Windows® Server 2003 OS installation .................. 3-6

iii

Contents

3.3 Windows® Server 2008 OS Driver Installation ........................... 3-9

3.3.1 During Windows® Server 2008 OS installation ............... 3-9

3.3.2 After Windows® Server 2008 OS installation .................3-11

3.4 Red Hat® Enterprise Linux OS 5 Driver Installation ................ 3-13

3.5 SUSE® Linux OS 11 Driver Installation ..................................... 3-15

About this guide

This user guide contains the information you need when installing and conguring

the server management board.

How this guide is organized

This guide contains the following parts:

• Chapter 1: Product introduction

This chapter offers the PIKE 2108 SAS RAID card features and the new technologies it supports.

• Chapter 2: RAID conguration

This chapter provides instructions on setting up, creating, and conguring

RAID sets using the available utilities.

• Chapter 3: Driver installation

This chapter provides instructions for installing the RAID drivers on different operating systems.

Where to nd more information

Refer to the following sources for additional information and for product and software updates.

1. ASUS websites

The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information.

2. Optional documentation

Your product package may include optional documentation, such as warranty

yers, that may have been added by your dealer. These documents are not

part of the standard package.

Conventions used in this guide

To make sure that you perform certain tasks properly, take note of the following symbols used throughout this manual.

DANGER/WARNING: Information to prevent injury to yourself

when trying to complete a task.

CAUTION: Information to prevent damage to the components

when trying to complete a task.

IMPORTANT: Instructions that you MUST follow to complete a

task.

NOTE: Tips and additional information to help you complete a

task.

Typography

Bold text Indicates a menu or an item to select.

Italics

Used to emphasize a word or a phrase.

<Key> Keys enclosed in the less-than and greater-than sign means that you must press the enclosed key.

Example: <Enter> means that you must press the Enter or Return key.

<Key1+Key2+Key3> If you must press two or more keys simultaneously, the key names are linked with a plus sign (+).

Example: <Ctrl+Alt+Del>

Command Means that you must type the command exactly as shown,

then supply the required item or value enclosed in brackets.

Example: At the DOS prompt, type the command line: format a:

PIKE 2108 specications summary

Controller LSI SAS 2108 6Gb/s SAS Controller

Interface ASUS PIKE interface

Ports 8 ports

Support Device SAS / SAS II devices

Data transfer rate SATA III and SAS II 6Gb/s per PHY

RAID level • RAID 0 / 1 / 10 / 5 / 50 / 6 / 60

Cache 512MB DDR2 800MHz onboard SDRAM

Battery Backup Support Header reserved for LSI Standard BBU (acquired from

OS support* Windows® XP Professional SP3

Form factor 6.44 in x 1.57 in (1U compatible)

* The exact OS support would base on the OS support list of the motherboard. ** Specications are subject to change without notice.

SATA / SATA II / SATA III devices

• Max. physical Disk qty for RAID: 16

LSI existing distribution channel)

Windows® Server 2003 SP2 Enterprise Edition Windows® Server 2003 SP2 Standard Edition Windows® Server 2008 Enterprise Edition SP2 Windows® Server 2008 Enterprise Edition R2 Windows® Server 2008 Standard Edition SP2 Windows® Server 2008 Standard Edition R2 Windows® 7 (Ultimate) Red Hat Enterprise Linux AS 4.8 Red Hat Enterprise Linux AS 5.5 SuSE Linux Enterprise Server 10.3 SuSE Linux Enterprise Server 11.1 Fedora 12 Free BSD 8.1 Cent OS 5.5 ESX4.0 UP1 ESXi4.0

vii

viii

This chapter offers the PIKE 2108 SAS RAID card features and the new technologies it supports.

Chapter 1: Product

introduction

1.1 Welcome!

Thank you for buying an ASUS® PIKE 2108 SAS RAID card!

The ASUS PIKE 2108 allows you to create RAID 0, 1, 10, 5, 50, 6, and 60 sets from SATA/SATA II/SATA III/SAS/SAS II hard disk drives connected to the SAS connectors on the motherboard.

Before you start installing the RAID card, check the items in your package with the list below.

1.2 Package contents

Check your package for the following items.

Standard Gift Box Pack Standard Bulk Pack

ASUS PIKE 2108 SAS RAID card 1 1

Heatsink for 5U/2U system 1 1

Support CD 1 1

User Guide 1 1

BBU cable* 1 —

SATA cable* 8 —

Packing Quantity 1 pc per carton 3 pcs per carton

• The number of the BBU cable and SATA cable varies with product SKU.

• If any of the above items is damaged or missing, contact your retailer.

1-2 Chapter 1: Product introduction

1.3 Card layout

The illustration below shows the major components of the RAID card.

Front

1. ASUS PIKE interface-1: PCI-E Gen2 x8

2. ASUS PIKE interface-2: 8-port SAS signal with SGPIO interface*

* The SGPIO interface is used for visibility into drive activity, failure and rebuild

status, so that users could build high-performance and reliable storage systems. Refer to the motherboard manual for detailed information about using the SGPIO connectors on the motherboard.

Rear

1. SAS RAID card status LED (lights up and blinks to indicate that the card is working normally)

2. BBU cable connector

1.4 System requirements

Before you install the PIKE 2108 SAS RAID card, check if the system meets the following requirements:

• Workstation or server motherboard with a PIKE RAID card slot

• SAS or SATA hard disk drives

• Supporting operating system:

Windows® and Linux operating systems (refer to website for details)

• Other requirement:

- Appropriate thermal solution

- Certied power supply module

ASUS PIKE 2108 1-3

1.5 Card installation

Follow the below instructions to install ASUS PIKE 2108 SAS RAID card to your server system.

For 1U server, install the SAS RAID card to the PIKE RAID card slot on the motherboard.

It is recommended to install a low-prole form factor PCIe expansion card with full height bracket, or with low prole bracket to the PCIe riser card to prevent

mechanical interference with the PIKE 2108 card.

For 2U, 5U, or pedestal server, attach the extension heatsink to ASUS PIKE 2108 SAS RAID card, and then install the SAS RAID card to the PIKE RAID card slot on the motherboard.

Attach the extension heatsink to ASUS PIKE 2108 SAS RAID card

1. Remove the stickers on the back of the extension heatsink.

2. Attach the extension heatsink to ASUS PIKE 2108 SAS RAID card.

3. Secure the extension heatsink with four screws.

1-4 Chapter 1: Product introduction

Install ASUS PIKE 2108 SAS RAID card to the server system

1. Locate the PIKE RAID card slot on the motherboard.

2. Align the golden ngers of the RAID card with the PIKE RAID card slot. Insert

the RAID card into the PIKE RAID card slot. Ensure the card is completely inserted into the card slot, and the heatsink latch is completely hooked to the edge of the card slot.

3. Secure the heatsink to the nearest screw hole on the motherboard.

DO NOT overtighten the screw, or the motherboard component can be damaged.

4. Connect the hard disk drives to the SAS connectors on the motherboard.

ASUS PIKE 2108 1-5

Attach the Battery Backup Unit (BBU) cable

If you have a LSI Battery Backup Unit (BBU), connect the BBU cable to the BBU connector on the PIKE RAID card.

Align the pin 1 wire (red) of the BBU cable to the triangle mark on the BBU

connector, and then rmly insert the

cable.

Uninstall ASUS PIKE 2108 SAS RAID card from the server system

1. Disconnect all SAS hard disk drives from the motherboard.

2. Remove the screw that secures the RAID card to the motherboard.

3. Release the heatsink latch from

the card slot with a nger, and then

remove the RAID card from the slot.

1-6 Chapter 1: Product introduction

This chapter provides instructions on setting

up, creating, and conguring RAID sets using

the available utilities.

Chapter 2: RAID

conguration

2.1 Setting up RAID

The RAID card supports RAID 0, 1, 10, 5, 50, 6, and 60.

2.1.1 RAID denitions

RAID 0

(Data striping)

data in parallel, interleaved stacks. Two hard disks perform the same work as a single drive but at a sustained data transfer rate, double that of a single disk alone, thus improving data access and storage. Use of at least two new identical hard disk drives is required for this setup.

RAID 1

(Data mirroring)

drive to a second drive. If one drive fails, the disk array management software directs all applications to the surviving drive as it contains a complete copy of

the data in the other drive. This RAID conguration provides data protection and

increases fault tolerance to the entire system. Use two new drives or use an existing drive and a new drive for this setup. The new drive must be of the same

size or larger than the existing drive.

RAID 10 is a striped conguration with RAID 1 segments whose segments are RAID 1 arrays. This conguration has the same fault tolerance as RAID 1, and

has the same overhead for fault-tolerance as mirroring alone. RAID 10 achieves high input/output rates by striping RAID 1 segments. In some instances, a RAID

10 conguration can sustain multiple simultaneous drive failure. A minimum of four

hard disk drives is required for this setup.

RAID 5 stripes both data and parity information across three or more hard

disk drives. Among the advantages of RAID 5 conguration include better

HDD performance, fault tolerance, and higher storage capacity. The RAID

5 conguration is best suited for transaction processing, relational database

applications, enterprise resource planning, and other business systems. Use a minimum of three identical hard disk drives for this setup.

RAID 50 is a combination of RAID 0 and RAID 5. It uses distributed parity and disk striping and works best with data that requires high reliability, high request rates, high data transfers, and medium-to-large capacity.

RAID 6 uses distributed parity, with two independent parity blocks per stripe, and disk striping. A RAID 6 virtual drive can survive the loss of two drives without losing data. A RAID 6 drive group, which requires a minimum of three drives, is similar to a RAID 5 drive group. Blocks of data and parity information are written across all drives. The parity information is used to recover the data if one or two drives fail in the drive group.

RAID 60, a combination of RAID 0 and RAID 6, uses distributed parity, with two independent parity blocks per stripe in each RAID set, and disk striping. A RAID 60 virtual drive can survive the loss of two drives in each of the RAID 6 sets without losing data. It works best with data that requires high reliability, high request rates, high data transfers, and medium-to-large capacity.

optimizes two identical hard disk drives to read and write

copies and maintains an identical image of data from one

2-2 Chapter 2: RAID conguration

• Having RAID 0 and RAID 5 virtual disks in the same physical array is notHaving RAID 0 and RAID 5 virtual disks in the same physical array is not recommended. If a drive in the physical array has to be rebuilt, the RAID 0 virtual disk will cause a failure during the rebuild.

• If you want to boot the system from a hard disk drive included in a created

RAID set, copy rst the RAID driver from the support CD to a oppy disk

before you install an operating system to the selected hard disk drive.

2.1.2 Installing hard disk drives

The RAID card supports SAS for RAID set conguration. For optimal performance,

install identical drives of the same model and capacity when creating a disk array.

To install SAS hard disks for RAID conguration:

1. Install the SAS hard disks into the drive bays following the instructions in the system user guide.

2. Connect a SAS signal cable to the signal connector at the back of each drive and to the SAS connector on the motherboard.

3. Connect a power cable to the power connector on each drive.

ASUS PIKE 2108 2-3

2.2 LSI WebBIOS Conguration Utility

The LSI WebBIOS Conguration Utility (CU) is an integrated RAID solution that

allows you to create RAID 0, 1, 10, 5, 50, 6, and 60 sets from SATA/SATA II/SATA III/SAS/SAS II hard disk drives supported by the LSI SAS 2108 controller.

You can also use the WebBIOS CU to do the following tasks:

• Create drive groups and virtual drives for storage congurations

• Delete virtual drives

• Migrate a storage conguration to a different RAID level

• Detect conguration mismatches

• Import a foreign conguration

• Display controller, virtual drive, drive, and change parameters.

• Scan devices connected to the controller

• Initialize virtual drives

• Check congurations for data consistency

• Create a CacheCade™ conguration

• You may use disks of different sizes; however, the size of the smallest disk determines the “logical” size of each member disk.

• DO NOT combine Serial ATA and SAS disk drives in one volume.

• The RAID setup screens shown in this section are for reference only and may not exactly match the items on your screen due to the controller version difference.

2-4 Chapter 2: RAID conguration

2.2.1 Starting the WebBIOS CU

Follow these steps to start the WebBIOS CU and access the main screen.

1. Turn on the system after installing all SAS hard disk drives.

2. During POST, press <Ctrl+H> when the following screen appears

Press <Ctrl+Y> for Preboot CLI: this option is for advanced debug only!

Battery Status: Not present

PCI SLOT ID LUN VENDOR PRODUCT REVISION CAPACITY

-------- -- --- ------ ------- -------- ------- 7 LSI LSI MegaRAID SAS PCI Expr 2.120.03-512MB 7 2 0 ATA ST3160812AS E 152627MB 7 3 0 ATA ST3160812AS E 152626MB 7 4 0 ATA ST3160812AS E 152626MB 7 5 0 ATA ST3160812AS E 152627MB 0 Virtual Drive(s) found on the host adapter.

0 Virtual Drive(s) handled by BIOS Press <Ctrl><H> for WebBIOS or press <Ctrl><Y> for Preboot CLI _

3. The Adapter Selection screen appears. If the system has multiple SAS adapters, select an adapter.

4. Click Start to continue. The main WebBIOS CU screen appears.

ASUS PIKE 2108 2-5

2.2.2 WebBIOS CU main screen options

This is the Physical View screen which displays the drives that are connected to the controller. To toggle between the physical view and logical view of the storage devices connected to the controller, click Physical View or Logical View in the menu on the left. When the Logical View screen is displayed, you can see all the

virtual drives that are congured on this controller.

WebBIOS CU Toolbar Icons

Icon Description

Click this icon to return to the main screen from any other WebBIOS CU screen.

Click this icon to return to the previous screen that you were viewing.

Click this icon to exit the WebBIOS CU program.

Click this icon to display information about the WebBIOS CU version, bus number, and device number.

2-6 Chapter 2: RAID conguration

Here is a description of the options listed on the left of the main WebBIOS CU screen:

• Advanced Software Option: Select this to allow you to enable the special

functionality or features that may not be available in the standard conguration

of the controller.

• Controller Selection: Select this to view the Adapter Selection screen, where

you can select a different SAS adapter. You can then view information about

the controller and the devices connected to it, or create a new conguration on

the controller.

• Controller Properties: Select this to view the properties of the currently

selected SAS controller.

• Scan Devices: Select this to have the WebBIOS CU re-scan the physical and

virtual drives for any changes in the drive status or the physical conguration.

The WebBIOS CU displays the results of the scan in the physical and virtual drive descriptions.

• Virtual Drives: Select this to view the Virtual Drives screen, where you can

change and view virtual drive properties, initialize drives, and perform other

tasks.

• Drives: Select this to view the Drives screen, where you can view drive

properties, and perform other tasks.

• Conguration Wizard: Select this to start the Conguration Wizard and create

a new storage conguration, clear a conguration, or add a conguration.

• Logical View: Select this to toggle between the Physical View and Logical

View screens.

• Events: Select this to view system events in the Event Information screen.

• Exit: Select this to exit the WebBIOS CU and continue with system boot.

ASUS PIKE 2108 2-7

2.2.3 Creating a Storage Conguration

This section explains how to use the WebBIOS CU Conguration Wizard to congure RAID arrays and virtual drives.

The default settings of the conguration items mentioned in this section are

subject to change without notice, but the functions of the items will not be affected.

Selecting the Conguration with the Conguration Wizard

Follow these steps to start the Conguration Wizard, and select a conguration

option and mode:

1. Click Conguration Wizard on

the WebBIOS main screen. The

rst Conguration Wizard screen

appears, as shown in the right

gure.

2. Select a conguration option.

If you choose the rst or second option, all existing data in the conguration will

be deleted. Make a backup of any data that you want to keep before choosing these options.

• Clear Conguration: Clears the existing conguration.

• New Conguration: Clears the existing conguration and lets you

create a new conguration.

• Add Conguration: Retains the existing storage conguration and adds

new drives to it (this does not cause any data loss).

3. Click Next. A dialog box warns that you will lose data if you select Clear

Conguration or New Conguration.

4. On the next screen, select a conguration mode:

• Manual Conguration: Allows you to control all attributes of the new

storage conguration.

• Automatic Conguration: Automatically creates an optimal RAID

conguration.

2-8 Chapter 2: RAID conguration

If you select Automatic Conguration, you can choose the redundancy mode:

• Redundancy when possible: Automatically creates an optimal RAID

conguration, providing data redundancy.

• No Redundancy: Automatically creates a non-redundant RAID 0

conguration.

5. Click Next to continue.

Using Automatic Conguration

Follow these instructions to create a conguration with automatic conguration,

either with or without redundancy:

1. When WebBIOS displays the proposed new conguration, review the

information on the screen, and click Accept to accept it. (Or click Back to go

back and change the conguration.)

• RAID 0: If you selected Automatic Conguration and No

Redundancy, WebBIOS creates a RAID 0 conguration.

• RAID 1: If you selected Automatic Conguration and Redundancy

when possible, WebBIOS creates a RAID 1 conguration if only two

disk drives are available.

• RAID 6: If you selected Automatic Conguration and Redundancy

when possible, WebBIOS creates a RAID 6 conguration if three or

more disk drives are available.

2. Click Yes when you are prompted to save the conguration.

3. Click Yes when you are prompted to initialize the new virtual drive(s).

WebBIOS CU begins a background initialization of the virtual drives.

Using Manual Conguration: RAID 0

RAID 0 provides drive striping across all drives in the RAID drive group. RAID 0 does not provide any data redundancy but does offer excellent performance. RAID 0 is ideal for applications that require high bandwidth but do not require fault tolerance. RAID 0 also denotes an independent or single drive.

RAID level 0 is not fault-tolerant. If a drive in a RAID 0 drive group fails, the whole virtual drive (all drives associated with the virtual drive) fails.

When you select Manual Conguration and click Next, the Drive Group Denition screen appears. You use this screen to select drives to create drive groups.

1. Hold <Ctrl> while selecting two or more ready drives in the Drives panel on the left until you have selected all desired drives for the drive group.

ASUS PIKE 2108 2-9

2. Click Add To Array to move the

drives to a proposed drive group

conguration in the Drive Groups

panel on the right, as shown in the

right gure.

3. Select a preferred Power save mode. The power save mode can be Max, Max without cache, Auto, None, and Controller dened. If you need to undo the changes, click the Reclaim button.

4. When you have nished selecting drives for the drive group, click Accept DG.

5. Click Next. The Span Denition screen appears. Select one of the available drive groups, and then click Add to SPAN.

6. When nish, click Next. The Virtual Drive Denition screen appears, as shown in the right gure. You use

this screen to select the RAID level,

strip size, read policy, and other

attributes for the new virtual drives.

7. Change the virtual drive options from the defaults listed on the screen as needed.

Here are brief explanations of the

virtual drive options:

• RAID Level: The drop-down menu lists the possible RAID levels for the

virtual drive. Select RAID 0.

• Strip Size: The strip size species the size of the segment written to

each disk in a RAID conguration. You can set the strip size up to 64 KB. A larger strip size produces higher read performance. If your computer regularly performs random read requests, choose a smaller strip size.

The default is 64 KB.

• Access Policy: Select the type of data access that is allowed for this

virtual drive:

◊ RW: Allow read/write access. This is the default.

◊ Read Only: Allow read-only access.

◊ Blocked: Do not allow access.

• Read Policy: Specify the read policy for this virtual drive:

◊ Normal: This disables the read ahead capability.

2-10 Chapter 2: RAID conguration

◊ Ahead: This enables read ahead capability, which allows the

controller to read sequentially ahead of requested data and to store the additional data in cache memory, anticipating that the data will be needed soon. This speeds up reads for sequential data, but there is little improvement when accessing random data. This is the default.

• Write Policy: Specify the write policy for this virtual drive:

◊ Write Through: In Write Through mode the controller sends a data

transfer completion signal to the host when the drive subsystem has received all of the data in a transaction.

◊ Always Write Back: In Writeback mode the controller sends a data

transfer completion signal to the host when the controller cache has received all of the data in a transaction. This setting is recommended in Standard mode.

◊ Write Back with BBU: In Writeback mode the controller sends a data

transfer completion signal to the host when the controller cache has received all of the data in a transaction. This setting has to be used with a Battery Backup Unit (BBU). This is the default.

• IO Policy: The IO Policy applies to reads on a specic virtual drive. It

does not affect the read ahead cache.

◊ Direct: In direct I/O mode, reads are not buffered in cache memory.

Data is transferred to the cache and the host concurrently. If the same data block is read again, it comes from cache memory.

◊ Cached: In cached I/O mode, all reads are buffered in cache memory.

This is the default.

• Drive Cache: Specify the drive cache policy:

◊ NoChange: Leave the current drive cache policy unchanged. This is

the default.

◊ Enable: Enable the drive cache.

◊ Disable: Disable the drive cache.

• Disable BGI: Specify the background initialization status:

◊ No: Leave background initialization enabled. This means that a new

conguration can be initialized in the background while you use WebBIOS to do other conguration tasks. This is the default.

◊ Yes: Select Yes if you do not want to allow background initializations

for congurations on this controller.

• Select Size: Specify the size of the virtual drive in terabytes, gigabytes,

megabytes, or kilobytes. Normally, this would be the full size for RAID 0 shown in the Conguration panel on the right. You may specify a smaller size if you want to create other virtual drives on the same drive group.

ASUS PIKE 2108 2-11

8. Click Accept to accept the changes to the virtual drive denition, or click Reclaim to return to the previous settings.

9. Click Yes to conrm the write policy mode you have chosen.

10. Click Next when you are nished

dening virtual drives. The conguration preview screen

appears, as shown in the right

gure.

11. Check the information in the

conguration preview.

12. If the virtual drive conguration is

acceptable, click Accept to save the conguration. Otherwise, click Back to return to the previous screens

and change the conguration.

13. If you accept the conguration, click Yes at the prompt to save the conguration.

14. Click Yes at the prompt to start initialization.

Using Manual Conguration: RAID 1

In RAID 1, the RAID controller duplicates all data from one drive to a second drive. RAID 1 provides complete data redundancy, but at the cost of doubling the required data storage capacity. It is appropriate for small databases or any other environment that requires fault tolerance but small capacity.

When you select Manual Conguration and click Next, the Drive Group Denition screen appears. You use this screen to select drives to create drive groups.

1. Hold <Ctrl> while selecting two ready drives in the Drives panel on the left.

2. Click Add to Array to move the drives to a proposed drive group

conguration in the Drive Groups panel on the right.

3. Select a preferred Power save mode. The power save mode can be Max, Max without cache, Auto, None, and Controller dened. If you need to undo the changes, click the Reclaim button.

4. When you have nished selecting drives for the drive group, click Accept DG.

5. Click Next. The Span Denition screen appears Select one of the available drive groups, and then click Add to SPAN.

6. When nish, click Next. The Virtual Drive Denition screen appears. You use this screen to select the RAID level, strip size, read policy, and other

attributes for the new virtual drives.

7. Change the virtual drive options from the defaults listed on the screen as needed.

2-12 Chapter 2: RAID conguration

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