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Solaris Volume Manager Administration Guide
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Document Information


1.  Getting Started With Solaris Volume Manager

2.  Storage Management Concepts

Introduction to Storage Management

Storage Hardware

RAID Levels

Configuration Planning Guidelines

Choosing Storage

General Performance Guidelines

Random I/O and Sequential I/O Optimization

Random I/O

Sequential Access I/O

3.  Solaris Volume Manager Overview

4.  Solaris Volume Manager for Sun Cluster (Overview)

5.  Configuring and Using Solaris Volume Manager (Scenario)

6.  State Database (Overview)

7.  State Database (Tasks)

8.  RAID-0 (Stripe and Concatenation) Volumes (Overview)

9.  RAID-0 (Stripe and Concatenation) Volumes (Tasks)

10.  RAID-1 (Mirror) Volumes (Overview)

11.  RAID-1 (Mirror) Volumes (Tasks)

12.  Soft Partitions (Overview)

13.  Soft Partitions (Tasks)

14.  RAID-5 Volumes (Overview)

15.  RAID-5 Volumes (Tasks)

16.  Hot Spare Pools (Overview)

17.  Hot Spare Pools (Tasks)

18.  Disk Sets (Overview)

19.  Disk Sets (Tasks)

20.  Maintaining Solaris Volume Manager (Tasks)

21.  Best Practices for Solaris Volume Manager

22.  Top-Down Volume Creation (Overview)

23.  Top-Down Volume Creation (Tasks)

24.  Monitoring and Error Reporting (Tasks)

25.  Troubleshooting Solaris Volume Manager (Tasks)

A.  Important Solaris Volume Manager Files

B.  Solaris Volume Manager Quick Reference

C.  Solaris Volume Manager CIM/WBEM API


Introduction to Storage Management

How you choose to manage your storage determines how you control the devices that store the active data on your system. To be useful, active data must be available and remain persistent even after unexpected events, such as a hardware or software failure.

Storage Hardware

There are many different devices on which data can be stored. The selection of devices to best meet your storage needs depends primarily on three factors:

You can use Solaris Volume Manager to help manage the trade-offs in performance, availability, and cost. You can often mitigate many of the trade-offs with Solaris Volume Manager.

Solaris Volume Manager works well with any supported storage on any system that runs the Solaris operating system.

RAID Levels

RAID is an acronym for Redundant Array of Inexpensive (or Independent) Disks. RAID refers to a set of disks, called an array or a volume, that appears to the user as a single large disk drive. Depending on the configuration, this array provides improved reliability, response time, or storage capacity.

Technically, there are six RAID levels, 0-5. Each level refers to a method of distributing data while ensuring data redundancy. (RAID Level 0 does not provide data redundancy, but is usually included as a RAID classification anyway. RAID Level 0 provides the basis for the majority of RAID configurations in use.) Very few storage environments support RAID Levels 2, 3, and 4, so those environments are not described here.

Solaris Volume Manager supports the following RAID levels: