Asus PIKE 2208 User Manual

PIKE 2208
LSISAS RAID card
User Guide
E7568
First Edition (V1) August 2012
Copyright © 2012 ASUSTeK COMPUTER INC. All Rights Reserved.
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
product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies, and are used only for identication or explanation and to the owners’ benet, without intent to infringe.
ii
Contents
Notices .......................................................................................................... v
About this guide .......................................................................................... v
PIKE 2208 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 ................................................................... 1-4
1.5 Card installation ........................................................................... 1-5
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 ..................... 2-30
2.2.5 Viewing System Event Information ............................... 2-37
2.2.6 Managing Congurations .............................................. 2-38
2.3 MegaRAID Storage Manager ..................................................... 2-42
2.3.1 Hardware and Software Requirements ......................... 2-42
2.3.2 Installing MegaRAID Storage Manager Software on
Microsoft Windows OS .................................................. 2-42
2.3.3 Installing MegaRAID Storage Manager Software for
Linux ............................................................................. 2-46
2.3.4 Linux Error Messages ................................................... 2-47
2.3.5 Starting the MegaRAID Storage Manager Software ..... 2-48
2.3.6 MegaRAID Storage Manager Window .......................... 2-50
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
ASUS contact information .......................................................................... 1
iv

Notices

Australia statement notice
From 1 January 2012 updated warranties apply to all ASUS products, consistent with the Australian Consumer Law. For the latest product warranty details, please visit http://support.asus.com. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
If you require assistance please call ASUS Customer Service 1300 2787 88 or visit us at http://support.asus.com

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 2208 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.
v
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
<Key1+Key2+Key3> If you must press two or more keys simultaneously, the key
Example: <Ctrl+Alt+Del>
Command Means that you must type the command exactly as shown,
Example: At the DOS prompt, type the command line:
Return key.
names are linked with a plus sign (+).
then supply the required item or value enclosed in brackets.
format a:
vi
PIKE 2208 specications summary
Controller LSI 2208 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 1GB onboard SDRAM
Backup Support Header reserved for LSI Cache Vault (acquired from LSI
OS support* Windows® Server 2003 Enterprise Edition R2 SP2
Form factor 6.44 in x 3.02 in (2U compatible)
SATA / SATA II / SATA III devices
Max. physical Disk qty for RAID: 32
existing distribution channel)
Windows® Server 2008 Enterprise Edition R2 SP1 Windows® 7 (Ultimate) SP1 Red Hat Enterprise Linux AS 5.8 Red Hat Enterprise Linux AS 6.2 SuSE Linux Enterprise Server 10.4 SuSE Linux Enterprise Server 11.2 Cent OS 5.7 Cent OS 5.8 Cent OS 6.2 Free BSD 8.3 Free BSD 9.0 Fedora 17 Citrix Xen Server 6.0.2
* The OS support depends on the motherboard’s OS support list.
** Specications are subject to change without notice.
vii
viii
This chapter offers the PIKE 2208 SAS RAID card features and the new technologies it supports.
Chapter 1: Product
1
introduction

1.1 Welcome!

Thank you for buying an ASUS® PIKE 2208 SAS RAID card!
The ASUS PIKE 2208 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 2208 SAS RAID card 1 1
Support CD 1 1
User Guide 1 1
SATA cable* 8
Packing Quantity 1 pc per carton 3 pcs per carton
The number of the 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
2
4
3
3
1. CacheVault connector
2. ASUS PIKE interface-1: PCI-E Gen3 x8
3. 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.
2
4. SAS RAID card status LED (lights up and blinks to indicate that the card is working normally)
ASUS PIKE 2208 1-3
Rear
1 1
1 1 1
1. 1GB DDR3 SDRAM

1.4 System requirements

Before you install the PIKE 2208 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
1-4 Chapter 1: Product introduction

1.5 Card installation

Follow below instructions to install the RAID card to your motherboard.
1. Locate the PIKE RAID card slot on the motherboard then remove the screws beside PIKE1 connector as shown.
2. Align the golden ngers of the RAID card with the PIKE RAID card slot then
Insert the RAID card into the 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 PIKE RAID card with the screw that you removed earlier.
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 2208 1-5
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

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 2208 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 2208 6Gb/s SAS 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!
LSI MegaRAID SAS-MFI BIOS Version 5.33.00 (Build March 15, 2012) Copyright(C) 2012 LSI Corporation
HA -0 (Bus 1 Dev 0) LSI MegaRAID SAS PCI Express ROMB Battery Status: Not present
PCI SLOT ID LUN VENDOR PRODUCT REVISION CAPACITY
-------- -- --- ------ ------- -------- -------­0 LSI LSI MegaRAID SAS PCI Exp 3.190.15-1686 512MB 0 0 0 SEAGATE ST3300657SS 0000 286102MB 0 1 0 SEAGATE ST3300657SS 0000 286102MB 0 2 0 SEAGATE ST3300657SS 0000 286102MB 0 3 0 SEAGATE ST3300657SS 0000 286102MB 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 2208 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 turn off the sound on the onboard controller alarm.
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 2208 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 to create storage congurations.
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 you choose an option.
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 2208 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. 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 1 MB. A larger strip size produces higher read performance. If your computer regularly performs random read requests, choose a smaller strip size.
The default is 256 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:
No Read Ahead: This disables the read ahead capability.
2-10 Chapter 2: RAID conguration
Always Read 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.
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. This is the default.
Cached: In cached I/O mode, all reads are buffered in cache memory.
Drive Cache: Specify the drive cache policy:
Unchanged: 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.
8. Click Accept to accept the changes to the virtual drive denition, or click
Reclaim to return to the previous settings.
ASUS PIKE 2208 2-11
9. Click Yes to conrm the write policy mode you have chosen.
10. Click Next after you nish 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 screen.
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.
15. After the virtual drive is successfully created, the Manage SSD Caching screen appears. Click Cancel to close the sceen.
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. 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.
2-12 Chapter 2: RAID conguration
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