Dell

Table of Contents

1

Product Comparison

5

 

1.1

Overview

5

 

1.2

PERC H700 Model Overview

6

 

1.3

PERC H800 Model Overview

7

2

New Features

9

 

2.1

New Feature Overview

9

 

2.2

6Gb/s SAS (SAS 2.0) Overview

9

 

2.2.1

6Gb/s SAS Performance Benefit over 3Gb/s SAS

10

 

2.2.2

6Gb/s SAS Expectation

10

3

Product Support

11

 

3.1

PowerEdge™ Server Support

11

 

3.2

Management Software Support

11

 

3.3

Operating System Support

11

 

3.4

Drive Support

12

4

Product Overview

13

 

4.1

PERC H700 and PERC H800 Feature Overview

13

 

4.2

CacheCade

15

 

4.3

Cut-Through IO

15

 

4.4

Reconfiguring Virtual Disks

15

 

4.5

Fault-Tolerance Features

16

 

4.5.1

Non-Volatile Cache

17

 

4.5.2

Automatic Replace Member with Predicted Failure

17

 

4.5.3

Redundant Path with Load Balancing Support

17

 

4.5.4

Failed Physical Disk Detection

17

 

4.5.5

Using Replace Member and Revertible Hot Spares

17

 

4.5.6

Enclosure Affinity

18

 

4.5.7

Battery Back-up of Controller Cache

18

 

4.6

Physical Disk Hot Swapping

18

 

4.7

Disk Roaming

19

 

4.8

Disk Migration

19

 

4.9

PERC H700 and H800 Security Key and RAID Management

19

 

4.9.1

PERC H700 and H800 Security Key Implementation

19

 

4.9.2

Configuring and Managing Secured RAID

19

 

4.10

Virtual Disk Write Cache Policies

20

 

4.11

Virtual Disk Read Cache Policies

20

5

RAID Overview

21

 

5.1

About RAID

21

 

5.2

Advantages of RAID

21

 

5.3

Supported RAID Levels

21

 

5.3.1

RAID 0 (Striped Virtual Disk without Fault Tolerance)

21

 

5.3.2

RAID 1 (Mirroring)

22

 

5.3.3

RAID 5 (Striping With Distributed Parity)

23

 

5.3.4

RAID 6 (Striping With Dual Distributed Parity)

24

DELL PERC H700 and H800 Technical Guide

3

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Dell H700, H800 manual Table of Contents