Dell Precision 7865 Tower Bedienungsanleitung

Precision 7865 Tower

RAID Guide

Regulatory Model: D03T

Regulatory Type: D03T002

July 2022

Rev. A00

Notes, cautions, and warnings

NOTE: A NOTE indicates important information that helps you make better use of your product.

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid

the problem.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

subsidiaries. Other trademarks may be trademarks of their respective owners.

Chapter 1: Overview...................................................................................................................... 4

Scope......................................................................................................................................................................................4

Chapter 2: Introduction.................................................................................................................5

RAID 0.................................................................................................................................................................................... 5

RAID 1..................................................................................................................................................................................... 6

RAID 5.....................................................................................................................................................................................7

RAID 10...................................................................................................................................................................................8

Volume....................................................................................................................................................................................9

RAIDABLE..............................................................................................................................................................................9

Chapter 3: Configuring RAID with AMD RAIDXpert2.....................................................................10

Creating the RAID volume............................................................................................................................................... 10

Downloading the RAID driver.......................................................................................................................................... 10

Installing an operating system to the RAID array.......................................................................................................10

Deleting the RAID volume................................................................................................................................................. 11

Chapter 4: Conclusion..................................................................................................................12

Chapter 5: Getting help and contacting Dell.................................................................................13

Contents

Contents 3

Overview

This document describes the procedure to configure the Redundant Array of Independent Disks (RAID) volumes on Serial

Advanced Technology Attachment (SATA) and Non-Volatile Memory express (NVMe) drives using the AMD RAID application,

AMD RAIDXpert2.

This document provides a high-level overview of how to manage the RAID configurations. For more information, refer to AMD

documentation, in particular the AMD-RAIDXpert2 User Guide and AMD NVMe/SATA RAID Quick Start Guide for Windows

Operating Systems, both available at www.amd.com.

Scope

This document provides examples of RAID configurations using the Precision 7865 Tower.

In some of the screenshots, a firmware version may be listed as examples. The firmware version on your system may be

different.

NVMe-related sections are subject to change as the technology evolves.

4 Overview

Introduction

The following RAID types are supported on Precision 7865 Tower workstations:

●RAID 0

●RAID 1

●RAID 5

●RAID 10

●Volume (Just a Bunch Of Disks - JBOD)

●RAIDABLE or RAID Ready

RAID 0

RAID 0 splits or stripes data across two or more drives for faster read and write performance. It uses more space compared to

other RAID types, and performance increases as the number of drives increases. However, if any drive in the array fails, all the

data is lost because there is no data redundancy.

The following are the key features of RAID 0:

●Two or more drives of the same size are required for RAID 0.

●A single-drive RAID 0 volume is almost equivalent to using raw drives in JBOD mode.

●In multiple-drive RAID 0 volumes, read and write operations are shared concurrently across multiple platters and heads.

Therefore, it provides better performance.

●The total volume capacity as seen by the operating system is equal to the sum of the individual-drive capacities. For

example, if you use four drives of 1 TB size, you get 4 x 1 TB = 4 TB.

The following figure illustrates that the total volume capacity of four 1 TB hard drives in a RAID 0 array is equivalent to one 4 TB

hard drive, and that there is no data redundancy.

Introduction 5

RAID 1

RAID 1, also known as the data mirroring, provides 100% redundancy for data protection.

By balancing the load, read performance can be twice as that of a single drive; write performance is almost same as a single

drive. RAID 1 volumes are suitable for operating system volumes. A disadvantage is cost, as twice as many drives are required

for RAID 1.

The following are the key features of RAID 1:

●100% duplication of data with instant failover.

●Requires two drives, preferably of the same capacity. When two different capacity drives are used, the volume size is same

as the capacity of the smaller drive. For example, if you use one 1 TB drive and one 2 TB drive in a RAID 1 array, the volume

size is 1 TB.

The following figure shows that if one 2 TB drive fails, data is lost. However, when there are two 2 TB drives in a RAID 1 volume,

data is still available even if one of the disks fails.

6Introduction

RAID 5

RAID 5 provides better performance by using data striping and protection through parity. The disadvantage of RAID 5 is that

rebuilding a large RAID 5 volume requires a longer period of time.

The following are the key features of RAID 5:

●Requires at least three drives.

●Data is available even if one of the drives present in the volume fails. The failed drive must be replaced, and the volume must

be rebuilt for the data to be accessible.

●The total capacity is N-1, where Nis the total capacity of the drives in the array. For example, if you use three 1 TB drives in

a RAID 5 array, the total volume size is 2 TB.

The following figure shows that if one 2 TB drive fails, data is lost. However, if there are three 1 TB drives in a RAID 5 array, the

data is still available even if one of the drives fails.

Introduction 7

RAID 10

RAID 10 is a stripe of mirrors that combines the features of RAID 0 and RAID 1. As the blocks are striped and mirrored, the

performance and redundancy are higher. The disadvantage of RAID 10 is that it is more expensive than other RAID levels, with a

higher number of drives required.

The following are the key features of RAID 10:

●Requires a minimum of four drives. Only an even number of drives can be used, and an odd number of drives are not

possible.

●The total volume capacity is half the sum of individual drives capacity. For example, when you use four drives of 1 TB, you

get a RAID 10 volume of 2 TB.

The following figure shows that the data is still available even if one disk drive fails in each mirror.

8Introduction

Volume

Volume, also named as JBOD, uses raw drives without any RAID configuration. AMD RAIDXpert2 treats one or more disks or the

unused space on a disk as a single array. It supports one to eight disks.

RAIDABLE

RAIDABLE is also known as RAID Ready. RAIDABLE disk can be transformed to RAID 0 or RAID 1. It supports only one disk.

Introduction 9

Configuring RAID with AMD RAIDXpert2

Creating the RAID volume

1. When your computer boots up, press F2 to enter the BIOS Setup menu.

2. Click Storage in the main menu.

3. In the SATA Operation section, select the RAID On mode.

4. Click APPLY CHANGES to save the settings, then click EXIT.

5. When your computer reboots, press the F12 key to enter the One-Time Boot Settings menu.

6. In the Pre-Boot Tasks menu, select Device Configuration.

The TPV EFI Device Manager appears.

7. From the Devices List, select RAIDXpert2 Configuration Utility.

8. On the Array Management pane, select Manage Array Properties.

9. Select Create Array.

10. On the Create Array pane, select Select Physical Disks to create the RAID mode.

The list of RAID types is displayed.

11. From the list, select the desired RAID type.

12. In the Select Media Type section, select the disk.

Ensure [X] is selected next to the disk.

13. Select Apply Changes to save the settings.

NOTE: To check if the RAID array is created, on the Create Array pane, click Create Array. On the Array Management

pane, click Manage Array Properties to view the RAID volume that is created.

Downloading the RAID driver

NOTE: These steps are to be performed only if you want to change or re-install the operating system.

1. Visit www.dell.com/support and search for your product.

2. Click Drivers & Downloads and download the AMD Chipset Device Software.

3. Double-click the .exe file of the downloaded chipset driver.

4. Select Extract and save the package to your system.

Installing an operating system to the RAID array

NOTE: You must configure the RAID volume before installing the operating system to the RAID array.

1. Insert the Windows operating system installation media or disk.

2. In the Windows setup box, click Browse.

3. Go to the folder containing the downloaded AMD RAID driver.

4. Load the rcbottom.inf in the folder.

5. Repeat steps 2 to 3 to load the rcraid.inf file, followed by the rccfg.inf file.

6. Complete the installation by following the instructions that are displayed on the screen.

NOTE: You can verify if the RAID driver installation is complete by checking in the Device Manager. The installation of

the operating system is supported only on the first RAID volume.

10 Configuring RAID with AMD RAIDXpert2

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