Herminghaus / Scriba Storage Management in Data Centers

Understanding, Exploiting, Tuning, and Troubleshooting Veritas Storage Foundation
1. Auflage 2009
ISBN: 978-3-540-85023-6
Verlag: Springer Berlin Heidelberg
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 524 Seiten

Storage Management in Data Centers helps administrators tackle the complexity of data center mass storage. It shows how to exploit the potential of Veritas Storage Foundation by conveying information about the design concepts of the software as well as its architectural background. Rather than merely showing how to use Storage Foundation, it explains why to use it in a particular way, along with what goes on inside. Chapters are split into three sections: An introductory part for the novice user, a full-featured part for the experienced, and a technical deep dive for the seasoned expert. An extensive troubleshooting section shows how to fix problems with volumes, plexes, disks and disk groups. A snapshot chapter gives detailed instructions on how to use the most advanced point-in-time copies. A tuning chapter will help you speed up and benchmark your volumes. And a special chapter on split data centers discusses latency issues as well as remote mirroring mechanisms and cross-site volume maintenance. All topics are covered with the technical know how gathered from an aggregate thirty years of experience in consulting and training in data centers all over the world.

Volker Herminghaus: 
Degree in computer science.
UNIX administration since 1987, consultant since 1989.
Trainer for all core Veritas products since 2000.
Author of the book 'Veritas Storage Foundation' (Springer 2006) 

Autoren/Hrsg.

Herminghaus, Volker

Scriba, Albrecht

Inhaltsverzeichnis

1;Table Of Contents;10
2;Chapter 1: Disk and Storage System Basics;16
2.1;1.1 Overview;16
2.2;1.2 Disk addressing and layout;34
2.3;1.3 Paths and path redundancy;38
2.4;1.4 The Trouble with Networked Disk Access;45
3;Chapter 2: Exploring VxVM;53
3.1;2.1 Getting Started;53
3.2;2.2 The Hard Way: a Low-level Walkthrough;59
3.3;2.3 The Easy Way: vxassist;67
4;Chapter 3: Incorporating Disks into VxVM;69
4.1;3.1 Solaris Disk Handling;70
4.2;3.2 VxVM disk handling;76
5;Chapter 4: Disk Groups;84
5.1;4.1 Overview;84
5.2;4.2 Simple Disk Group Operations;87
5.3;4.3 Advanced Disk Group Operations;93
5.4;4.4 Disk Group Implementation Details;102
6;Chapter 5: Volumes;112
6.1;5.1 Overview;112
6.2;5.2 Simple Volume Operations;114
6.3;5.3 Volume Layouts and RAI D Levels;119
6.4;5.4 Volume maintenance;127
6.5;5.5 Tuning vxassist Behavior;133
6.6;5.6 Methods of Synchronisation;143
6.7;5.7 Volume Features in Detail;150
6.8;5.8 Relayout in Detail;160
7;Chapter 6: Layered Volumes;165
7.1;6.1 Overview;165
7.2;6.2 Introducing Layered Volumes;170
7.3;6.3 Understanding Layered Volumes;177
8;Chapter 7: Logs;184
8.1;7.1 Overview;184
8.2;7.2 Log Maintenance;188
8.3;7.3 Details About Logs;191
9;Chapter 8: Dual Data Centers;201
9.1;8.1 Volume Management in Dual Data Centers;201
9.2;8.2 Replication Across Data Centers;223
9.3;8.3 Estimating Replication Speed;233
10;Chapter 9: Point In Time Copies (Snapshots);242
10.1;9.1 Overview;242
10.2;9.2 Physical Raw Device Snapshots;246
10.3;9.3 Features of and Improvements on the Raw Device Snapshot;258
10.4;9.4 Veritas File System Based Snapshots;291
10.5;9.5 Creating a Full Sized Volume Snapshot Using Low-Level Commands;309
10.6;9.6 Legacy Snapshot Commands;312
10.7;9.7 DCO Version 0 and Version 20;317
10.8;9.8 VxFS Storage Checkpoint Behavior;322
11;Chapter 10: Encapsulation and Root Mirroring;327
11.1;10.1 Introduction and Overview;327
11.2;10.2 The Secrets of Encapsulation;329
11.3;10.3 Root Disk Encapsulation;331
11.4;10.4 Root Disk Mirroring;332
11.5;10.5 Remarks to vxencap and OS Mirroring;335
11.6;10.6 The Ghost Subdisk;338
11.7;10.7 Manual Encapsulation Walkthrough;346
12;Chapter 11: Troubleshooting;357
12.1;11.1 Introduction;357
12.2;11.2 Disk Outage;360
12.3;11.3 Disk Outage in Detail;370
12.4;11.4 Synchronization Tasks;388
12.5;11.5 Restore of Lost VxVM Objects;399
12.6;11.6 Booting without VxVM;414
12.7;11.7 More than Two OS Mirrors: Emergency Disk;420
12.8;11.8 Hot Relocation Troubles;428
12.9;11.9 Plex States Overview;434
13;Chapter 12: File Systems;436
13.1;12.1 Block Based File Systems;436
13.2;12.2 Extent Based File Systems;441
13.3;12.3 Advanced File System Operations;448
14;Chapter 13: Tuning Storage Foundation;453
14.1;13.1 Basics About Tuning Storage Foundation;453
14.2;13.2 Tools for Performance Tuning VxVM on SAN Storage;467
14.3;13.3 Performance Tuning;474
15;Chapter 14: Miscellaneous;484
15.1;14.1 Disk Flags;484
16;Chapter 15: Storage Foundation Software Stack;491
16.1;15.1 Software Overview;491
16.2;15.2 Kernel Space Drivers;495
16.3;15.3 User Space Processes;498
16.4;15.4 Reducing VxVM's Footprint;499
17;Index;504