All you need to know about Storage Area Networks
The amount of data of an average company doubles every year. Thus, companies who own 1TB of data today will own 32TB in five years. Storage networks help to tame such data quantities and to manage this data growth efficiently. Since stored data and information are the biggest asset of any company, anyone who is involved in the planning or the operation of IT systems requires a basic knowledge of the principle and the use of storage networks.
Storage Networks Explained covers the fundaments, techniques and functions of storage networks such as disk subsystems, Fibre Channel SAN, Internet SCSI (iSCSI), Fibre Channel over Ethernet (FCoE), Network Attached Storage (NAS), file systems, and storage virtualization. Furthermore the authors describe the use of these techniques and how they are designed to achieve high-availability, flexibility, and scalability of data and applications. Additional attention is given to network backup and the management of storage networks. Written by leading experts in the field, this book on storage area networks is updated and fully revised.
Key features:
* Presents the basic concepts of storage networks, such as I/O techniques, disk subsystems, virtualization, NAS and SAN file systems
* Covers the design of storage networks which provide flexible, highly-available, and scaleable IT systems
* Explains the use of storage networks for data sharing, data protection, and digital archiving
* Discusses management of storage networks using SNMP, SMI-S, and IEEE 1244
This book provides system administrators and system architects, as well as students and decision makers, with the tools needed for optimal selection and cost-effective use of storage networks.
The Linux Journal awarded the first edition with the "Editor's Choice Award 2005" in the category "System Administration Book."
Auflage
Sprache
Verlagsort
Zielgruppe
Produkt-Hinweis
Maße
Höhe: 251 mm
Breite: 177 mm
Dicke: 37 mm
Gewicht
ISBN-13
978-0-470-74143-6 (9780470741436)
Schweitzer Klassifikation
The authors are employed at IBM's storage competence center in Mainz, Germany. They work at the interface between technology and customers. Their duties cover a wide field of responsibilities. They develop and test new software for storage networks. They present the latest hardware and software products in the field of storage networks to customers and explain their underlying concepts. Last but not least they deploy and support respective hardware and software in customer environments.
Ulf Troppens (centre) studied Computer Science at the University of Karlsruhe. Since 1989 he has been primarily involved in the development and administration of Unix systems, storage systems, data and storage networks and distributed applications.
Rainer Erkens (left) studied Mathematics at the University of Mainz. His experience in the management of computers and distributed applications goes back to 1992. Since 2005 he is a technical support manager in IBM's European Storage Competence Center.
Wolfgang M¨ uller-Friedt (right) studied Computer Science at the FH Darmstadt. He is a software architect focussing on the software development of management applications for storage networks which support open standards such as SMI-S and IEEE 1244.
Nils Haustein (left front) studied Electrical Engineering at the TU Chemnitz. For several years he is with IBM's advanced technical sales support in Europe where he is focussing on digital archiving.
Rainer Wolafka (right front) studied Electrical Engineering at the FH Frankfurt and Software Engineering at the Santa Clara University. Since 1997 he is working in the field of storage networks and the software development of management applications for storage networks.
Autor*in
IBM Germany
IBM TotalStorage Interoperability Cente
IBM TotalStorage Interoperability Cente
IBM
IBM
About the Authors.
Foreword to the Second Edition by Hermann Strass.
Preface by the Authors.
List of Figures and Tables.
1 Introduction.
1.1 Server-Centric IT Architecture and its Limitations.
1.2 Storage-Centric IT Architecture and its Advantages.
1.3 Case Study: Replacing a Server with Storage Networks.
1.4 The Structure of the Book.
PART I Technologies for Storage Networks.
2 Intelligent Disk Subsystems.
2.1 Architecture of Intelligent Disk Subsystems.
2.2 Hard Disks and Internal I/O Channels.
2.3 JBOD: Just a Bunch of Disks.
2.4 Storage Virtualisation Using RAID.
2.5 Different RAID Levels in Detail.
2.6 Caching: Acceleration of Hard Disk Access.
2.7 Intelligent Disk Subsystems.
2.8 Availability of Disk Subsystems.
2.9 Summary.
3 I/O Techniques.
3.1 The Physical I/O Path from the CPU to the Storage System.
3.2 SCSI.
3.3 The Fibre Channel Protocol Stack.
3.4 Fibre Channel SAN.
3.5 IP Storage.
3.6 Infiniband-based Storage Networks.
3.7 Fibre Channel over Ethernet (FCoE).
3.8 Summary.
4 File Systems and Network Attached Storage (NAS).
4.1 Local File Systems.
4.2 Network File Systems and File Servers.
4.3 Shared Disk File Systems.
4.4 Comparison: Fibre Channel SAN, FCoE SAN, iSCSI SAN and NAS.
4.5 Summary.
5 Storage Virtualisation.
5.1 Once Again: Virtualisation in the I/O Path.
5.2 Limitations and Requirements.
5.3 Definition of Storage Virtualisation.
5.4 Implementation Considerations.
5.5 Storage Virtualisation on Block or File Level.
5.6 Storage Virtualisation on Various Levels of the Storage Network.
5.7 Symmetric and Asymmetric Storage Virtualisation in the Network.
5.8 Summary.
PART II Application and Management of Storage Networks.
6 Application of Storage Networks.
6.1 Definition of the Term 'Storage Network'.
6.2 Storage Sharing.
6.3 Availability of Data.
6.4 Adaptability and Scalability of IT Systems.
6.5 Summary.
7 Network Backup.
7.1 General Conditions for Backup.
7.2 Network Backup Services.
7.3 Components of Backup Servers.
7.4 Backup Clients.
7.5 Performance Gains as a Result of Network Backup.
7.6 Performance Bottlenecks of Network Backup.
7.7 Limited Opportunities for Increasing Performance.
7.8 Next Generation Backup.
7.9 Backup of File Systems.
7.10 Backup of Databases.
7.11 Organisational Aspects of Backup.
7.12 Summary.
8 Archiving.
8.1 Terminology.
8.2 Motivation, Conditions and Requirements.
8.3 Implementation Considerations.
8.4 Interfaces in Archive Systems.
8.5 Archive Solutions.
8.6 Operational and Organisational Aspects.
8.7 Summary and Outlook.
9 Business Continuity.
9.1 General Conditions.
9.2 Strategies of Business Continuity.
9.3 Parameters of Business Continuity.
9.4 Quality of Service for Business Continuity.
9.5 Business Continuity Solutions.
9.6 Switch of Operational Location.
9.7 Organisational Aspects.
9.8 Summary.
10. Management of Storage Networks.
10.1 Requirements.
10.2 Characterisation of Management Interfaces.
10.3 In-band Management.
10.4 Out-band Management.
10.5 Operational Aspects of the Management of Storage Networks.
10.6 Summary.
11 Removable Media Management.
11.1 The Significance of Removable Media.
11.2 Removable Media.
11.3 Libraries and Drives.
11.4 Problems and Requirements in Respect of Removable Media Management.
11.5 The IEEE 1244 Standard for Removable Media Management.
11.6 Summary.
12 The SNIA Shared Storage Model.
12.1 The Model.
12.2 Examples of Disk-Based Storage Architectures.
12.3 Extension of the SNIA Shared Storage Model to Tape Functions.
12.4 Examples of Tape-Based Backup Techniques and Architectures.
12.5 Summary.
13 Final Note.
Glossary.
Annotated Bibliography.
Appendix A: Proof of Calculation of the Parity Block of RAID 4 and 5.
Appendix B: Checklist for the Management of Storage Networks.
B.1 Applications.
B.2 Data.
B.3 Resources.
B.4 Network.
Index.
