Managing RAID on Linux: Fast, Scalable, Reliable Data Storage

Redundant Array of Independent Disks (RAID) technology is becoming a standard feature of computer systems that support mission-critical services like file sharing, mail exchange, or Web servers. RAID offers two benefits to these essential systems: improved I/O performance and fail-safe data storage.Although bandwidth problems on networks are well documented, the internal data transfer bottleneck that exists at the hardware level in each system can also leave you with perplexing performance issues. RAID is a cost-effective and easy-to-manage way to alleviate this bandwidth problem by distributing the I/O load seamlessly across multiple disks and controllers.RAID also provides uninterrupted data access through disk mirroring and parity algorithms. That means systems can remain online even during a disk or controller failure. RAID is scalable, making it robust enough for large, high-traffic sites and small, critical systems. By using RAID, system administrators can combine single disks into terabytes worth of data storage.Managing RAID on Linux covers everything system administrators need to know to put together a system that can support RAID. You will learn about the different types of RAID, along with associated technologies and issues, and how to choose the best RAID system for your needs. With a step-by-step, hands-on approach, the author guides you through the installation of either Linux software RAID or a hardware RAID card. The book shows how to build an array and optionally install a high-performance file system. Contents include:

  • An introduction to RAID and Linux
  • Planning and architecture of your RAID system
  • Building a software RAID
  • Software RAID tools and references
  • Building a hardware RAID
  • Performance and tuning of your RAID system
RAID has become the low-cost solution of choice to deal with the ever-increasing demand for data storage space. Written for system administrators, power users, tech managers, and anyone who wants to learn about RAID technology, Managing RAID on Linux sidesteps the often-confusing vendor-specific approach you'll find elsewhere to give you the straight story on RAID. Even non-Linux users will find this book full of valuable material.
1140203257
Managing RAID on Linux: Fast, Scalable, Reliable Data Storage

Redundant Array of Independent Disks (RAID) technology is becoming a standard feature of computer systems that support mission-critical services like file sharing, mail exchange, or Web servers. RAID offers two benefits to these essential systems: improved I/O performance and fail-safe data storage.Although bandwidth problems on networks are well documented, the internal data transfer bottleneck that exists at the hardware level in each system can also leave you with perplexing performance issues. RAID is a cost-effective and easy-to-manage way to alleviate this bandwidth problem by distributing the I/O load seamlessly across multiple disks and controllers.RAID also provides uninterrupted data access through disk mirroring and parity algorithms. That means systems can remain online even during a disk or controller failure. RAID is scalable, making it robust enough for large, high-traffic sites and small, critical systems. By using RAID, system administrators can combine single disks into terabytes worth of data storage.Managing RAID on Linux covers everything system administrators need to know to put together a system that can support RAID. You will learn about the different types of RAID, along with associated technologies and issues, and how to choose the best RAID system for your needs. With a step-by-step, hands-on approach, the author guides you through the installation of either Linux software RAID or a hardware RAID card. The book shows how to build an array and optionally install a high-performance file system. Contents include:

  • An introduction to RAID and Linux
  • Planning and architecture of your RAID system
  • Building a software RAID
  • Software RAID tools and references
  • Building a hardware RAID
  • Performance and tuning of your RAID system
RAID has become the low-cost solution of choice to deal with the ever-increasing demand for data storage space. Written for system administrators, power users, tech managers, and anyone who wants to learn about RAID technology, Managing RAID on Linux sidesteps the often-confusing vendor-specific approach you'll find elsewhere to give you the straight story on RAID. Even non-Linux users will find this book full of valuable material.
31.99 In Stock
Managing RAID on Linux: Fast, Scalable, Reliable Data Storage

Managing RAID on Linux: Fast, Scalable, Reliable Data Storage

by Derek Vadala
Managing RAID on Linux: Fast, Scalable, Reliable Data Storage

Managing RAID on Linux: Fast, Scalable, Reliable Data Storage

by Derek Vadala

eBook

$31.99 

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Overview

Redundant Array of Independent Disks (RAID) technology is becoming a standard feature of computer systems that support mission-critical services like file sharing, mail exchange, or Web servers. RAID offers two benefits to these essential systems: improved I/O performance and fail-safe data storage.Although bandwidth problems on networks are well documented, the internal data transfer bottleneck that exists at the hardware level in each system can also leave you with perplexing performance issues. RAID is a cost-effective and easy-to-manage way to alleviate this bandwidth problem by distributing the I/O load seamlessly across multiple disks and controllers.RAID also provides uninterrupted data access through disk mirroring and parity algorithms. That means systems can remain online even during a disk or controller failure. RAID is scalable, making it robust enough for large, high-traffic sites and small, critical systems. By using RAID, system administrators can combine single disks into terabytes worth of data storage.Managing RAID on Linux covers everything system administrators need to know to put together a system that can support RAID. You will learn about the different types of RAID, along with associated technologies and issues, and how to choose the best RAID system for your needs. With a step-by-step, hands-on approach, the author guides you through the installation of either Linux software RAID or a hardware RAID card. The book shows how to build an array and optionally install a high-performance file system. Contents include:

  • An introduction to RAID and Linux
  • Planning and architecture of your RAID system
  • Building a software RAID
  • Software RAID tools and references
  • Building a hardware RAID
  • Performance and tuning of your RAID system
RAID has become the low-cost solution of choice to deal with the ever-increasing demand for data storage space. Written for system administrators, power users, tech managers, and anyone who wants to learn about RAID technology, Managing RAID on Linux sidesteps the often-confusing vendor-specific approach you'll find elsewhere to give you the straight story on RAID. Even non-Linux users will find this book full of valuable material.

Product Details

ISBN-13: 9780596555610
Publisher: O'Reilly Media, Incorporated
Publication date: 12/18/2002
Sold by: Barnes & Noble
Format: eBook
Pages: 262
File size: 3 MB

About the Author

lives in New York City. He works for azurance.com, an open source and security consulting firm that he co-founded. He has been published in SysAdmin Magazine, Linux Journal, The Perl Journal, and The Journal of Linux Technology.

Table of Contents

Prefacevii
1.Introduction1
RAID Terminology3
The RAID Levels: An Overview6
RAID on Linux8
Hardware Versus Software10
2.Planning and Architecture11
Hardware or Software?11
The RAID Levels: In Depth17
RAID Case Studies: What Should I Choose?28
Disk Failures31
Hardware Considerations32
Making Sense of It All56
3.Getting Started: Building a Software RAID59
Kernel Configuration60
Working with Software RAID70
Creating an Array81
The Next Step105
4.Software RAID Reference106
Kernel Options106
md Block Special Files109
/proc and Software RAID109
raidtools114
mdadm129
5.Hardware RAID145
Choosing a RAID Controller145
Preparing Controllers and Disks148
General Configuration Issues150
Mylex155
Adaptec167
Promise Technology174
3ware Escalade ATA RAID Controller181
LSI Logic (MegaRAID)184
6.Filesystems187
Basic Filesystem Concepts188
The Linux Virtual Filesystem (VFS)191
ext2192
ext3 Extensions for the ext2 Filesystem197
ReiserFS201
IBM JFS207
SGI XFS210
7.Performance, Tuning, and Maintenance214
Monitoring RAID Devices214
Managing Disk Failures216
Configuring Hard Disk Parameters221
Performance Testing227
Booting with Software RAID227
A.Additional Resources233
B.Hardware RAID Controller Vendors236
Index237
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