Dell PowerVault MD3000 Uživatelský manuál

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ARRAY TUNING
BEST PRACTICES
dell.com/PowerVault
POWERVAULT
MD3000 AND
MD3000i
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Strany 1 - MD3000i

ARRAY TUNING BEST PRACTICES dell.com/PowerVault POWERVAULT MD3000 AND MD3000i

Strany 2

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page10 traffic virtual disks share a disk group, even

Strany 3 - Table of Contents

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page11 first 128KiB of an I/O is written to the first

Strany 4 - 1 Audience and Scope

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page12 4.6 Cache Settings Read-ahead cache can be con

Strany 5

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page13 4.6.3 Setting the Storage Array Cache Block S

Strany 6

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page14 4.7 Tuning Using Array Performance Data 4.7.1

Strany 7

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page15 4.7.3 I/O Distribution I/O can be charact

Strany 8

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page16 to how tightly the variance of sequential or r

Strany 9

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page17 In the first generation of firmware (see Figur

Strany 10 - 4.4 Virtual Disk Ownership

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page18 In addition, the stateCaptureData.txt file pro

Strany 11

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page19 4.7.5 Write Algorithm Data It is important

Strany 12 - 4.6 Cache Settings

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page2 D

Strany 13

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page20 RMW, or Read-Modify-Write, is the second-best

Strany 14

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page21 4.8 Using the CLI Performance Monitor The C

Strany 15

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page22 For a complete list of commands and instructio

Strany 16

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page23 5 Considering the Host Server(s) 5.1 Host Ha

Strany 17

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page24 Figure 11: MD3000i Advanced IPv4 Settings: VLA

Strany 18

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page25 used at certain times, providing a point-to-po

Strany 19

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page26 Microsoft provides the diskpar.exe utility as

Strany 20

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page27 Appendix A: Obtaining Additional Performance T

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Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page28 Appendix B: System Troubleshooting For info

Strany 22

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page29 Appendix C: References Dell™ PowerVault™ Mod

Strany 23 - 5.1 Host Hardware Platform

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page3 Table of Contents 1 AUDIENCEANDSCOPE ...

Strany 24

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page30 Appendix D: Glossary of Terms Term Definitio

Strany 25

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page31 Term Definition directly on the drive in lieu

Strany 26

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page32 Term Definition by t10.org Segment A segment i

Strany 27 - Table 3: Performance Tools

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page4 1 Audience and Scope This document is intended

Strany 28

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page5 The answers include: • “It depends…” There ar

Strany 29 - Appendix C: References

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page6 • Profile of mean I/O direction; this is usual

Strany 30

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page7 Physical disk cost is not the only factor that

Strany 31

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page8 4.1.1 Selecting a RAID Level - High Write Mix S

Strany 32

Dell™ PowerVault MD3000 and MD3000i Array Tuning Best Practices December2008–RevisionA01 Page9 • To optimize for data transfer rate, multiply

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