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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

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)

Top-Down Volume Creation (Task Map)

Prerequisites for Top-Down Volume Creation

Creating Volumes Automatically

Analyzing Volume Creation by Specifying Output Verbosity

How to Create RAID-1 (mirror) Volumes Using the metassist Command

Working With File-Based Data Using the metassist Command

Creating a Command File (Shell Script) Using the metassist Command

How to Create a Command File (Shell Script) Using the metassist Command

Creating a Volume With a Saved Shell Script Created by the metassist Command

How to Execute a Saved metassist Command Shell Script

Creating a Volume Configuration File With the metassist Command

How to Create a Volume Configuration File Using the metassist Command

Changing the Default Behavior of the metassist Command

Changing the Volume Defaults File

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


Changing the Default Behavior of the metassist Command

You can use the volume defaults file (/etc/defaults/metassist.xml) to change the default behavior for the metassist command. By changing the defaults file, you can explicitly exclude from consideration, or include for consideration, specific disks or controllers. You can also specify requirements for most volume settings used by the metassist command.

The format of the /etc/defaults/metassist.xml is specified by the /usr/share/lib/xml/dtd/volume-defaults.dtd Document Type Definition (DTD). The format is documented in the volume-defaults(4) man page.

Changing the Volume Defaults File

Edit the volume defaults file (/etc/defaults/metassist.xml) to specify how the metassist command should behave.

Note - When you edit the file, you must ensure that the file continues to be compliant with the /usr/share/lib/xml/dtd/volume-defaults.dtd Document Type Definition (DTD). If the XML file is not compliant with the DTD, the metassist command will fail with an error message.

Example 23-11 Creating a Volume With Changed Defaults Using the metassist Command

Before creating a volume, edit the /etc/default/metassist.xml file to specify the default settings that you want to apply to all volumes you will create with the metassist command. In this example, the metassist command only creates volumes on controller c1 and, when creating stripes, only creates stripes with exactly four components and an interlace of value 512KB. These constraints apply to all uses of the metassist command until the /etc/default/metassist.xml file is changed again.

#  cat /etc/default/metassist.xml 
<!DOCTYPE volume-defaults SYSTEM \

<available name="c1" />
<stripe mincomp="4" maxcomp="4" interlace="512KB" ></stripe>

# metassist create -s myset -S 10Gb

The metassist command creates a 10-Gbyte stripe, using exactly four slices and an interlace value of 512 Kbytes, as specified in the /etc/default/metassist.xml file.