Storage Virtualization: Technologies for Simplifying Data Storage and Management

Storage Virtualization: Technologies for Simplifying Data Storage and Management
Storage virtualization is a new field that has considerable interest for information technology managers. There is currently no single work that
provides an objective, technical explanation of virtualization technologies.

This book examines new storage virtualization technologies that automate data
storage processes, including data placement, replication and back-up. Storage
virtualization is designed to ease storage management by presenting your
storage network’s physical assets in a logical form. Making storage networks
easier to manage can save a company money and make a storage network more efficient. Storage Virtualization provides a technical overview of how
virtualization applications work and also includes practical case examples from
the real world. Topics covered include: virtualizing at the host level, fabric based
virtualization, virtualization appliances, virtualized file systems,
virtualization engines and virtualized tape back-up.
Features First Look: New storage virtualization technologies making storage devices easier and more cost-efficient to manage.

° Standards are just emerging in this area and so, readers are looking for a book which will guide their implementation decisions.

° All major storage vendors are embracing virtualization: EMC, Veritas, IBM, Sun, HP, Cisco.

° A vendor-neutral, technology-neutral book by a brand name storage author–about the technology in general, how it works, what it does and what it can’t do.

Table of Contents Preface.

Acknowledgments.

1. Introduction.

Storage Virtualization Overview.

Core Concepts.

Chapter Summary.

2. Files and Records.

Application Access to Data.

Data as Files.

File Naming Conventions.

File Ownership.

Read/Write Permission Attributes.

Time Stamping.

File Size.

File Data Location.

Systematic Organization of Files.

File System Hierarchy.

Parsing the File System.

Master Tables.

File System Integrity.

File System Strategies.

Chapter Summary.

3. Data on Disk.

Volume Management.

Data as Blocks.

The SCSI Protocol and Logical Units.

Logical Units.

The SCSI Architectural Model.

SCSI Command Descriptor Blocks.

Block Aggregation.

RAID 0.

RAID 1.

RAID 0+1.

RAID 5.

RAID Controllers.

Getting Data Blocks to Disk.

Chapter Summary.

4. The Storage Interconnect.

The Path to Storage.

Storage Ports.

Storage Interconnects.

SCSI Interconnects.

Fibre Channel SAN Interconnects.

iSCSI Interconnects.

The Importance of Plumbing.

Chapter Summary.

5. Abstracting Physical Storage.

Physical to Virtual.

Logical Block Address Mapping.

Virtualized Mirroring.

Storage Metadata Integrity.

Chapter Summary.

6. Virtualization at the Host.

Logical Volume Management.

Storage Metadata Servers.

Server-based Storage APIs.

Chapter Summary.

7. Virtualization at the Storage Target.

Array-Based Virtualization.

Array-Based Data Replication.

Array-Based Point-in-Time Copy (Snapshot).

Distributed Modular Array Virtualization.

Chapter Summary.

8. Fabric-based Virtualization.

Sentient SANs.

Techniques for Switch-Based Virtualization.

The Fabric Application Interface Standard (FAIS).

Chapter Summary.

9. Virtualization Appliances.

Black Box Virtualization.

In-Band Virtualization Appliances.

Out-of-Band Virtualization Appliances.

High Availability for Virtualization Appliances.

Appliances for Mass Consumption.

Chapter Summary.

10. Virtualization Services.

Enabling Advanced Storage Services.

Pooling Heterogeneous Storage Assets.

Heterogeneous Mirroring.

Heterogeneous Data Replication.

Point-in-Time Data Snapshots.

Hierarchical Storage Management.

Chapter Summary.

11. Virtualized SAN File Systems.

Conventional File Systems.

Distributed File Systems.

Virtualizing File Systems.

Chapter Summary.

12. Virtual Tape.

Conventional Tape Backup.

Disk-to-Disk-to-Tape (D2D2T).

Virtualizing Tape Systems.

Chapter Summary.

13. Storage Automation and Virtualization.

Policy-Based Storage Management.

Application-Aware Storage Virtualization.

Virtualization-Aware Applications.

Chapter Summary.

14. The Storage Utility.

Dependencies.

Enabling the Storage Utility.

Chapter Summary.

Appendix A: Industry Resources.

Appendix B: Vendor Resources.

Appendix C: Observations and Speculations.

Glossary.

Bibliography.

Index.
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Cloud Computing

Cloud Computing
Cloud Computing promises new career opportunities for IT professionals. This book is designed to provide insights into cloud computing for undergraduate and postgraduate students. This book is not only useful for students but also for software professionals seeking cloud services for their domains. This book also acts as a launch pad for companies seeking to educate their IT professionals about the potential opportunities of cloud computing.
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