Creating RAID-0 (Concatenation) Volumes

How to Create a RAID-0 (Concatenation) Volume

Caution - Do not create volumes larger than 1Tbyte if you expect to run the Solaris software with a 32–bit kernel. Additionally, do not create volumes larger than 1 Tbyte if you expect to use a version of the Solaris OS prior to the Solaris 9 4/03 release. See Overview of Multi-Terabyte Support in Solaris Volume Manager for more information about multi-terabyte volumes in Solaris Volume Manager.

Before You Begin

Check Prerequisites for Creating Solaris Volume Manager Components and Background Information for Creating RAID-0 Volumes.

To create a concatenation volume, use one of the following methods:
- From the Enhanced Storage tool within the Solaris Management Console, open the Volumes node. Choose Action⇒Create Volume, then follow the instructions in the wizard. For more information, see the online help.
- Use the following form of the metainit command:
```
# metainit volume-name number-of-stripes components-per-stripe component-names
```
  volume-name
  
  Specifies the name of the volume to create.
  
  number-of-stripes
  
  Specifies the number of stripes to create.
  
  components-per-concatenation
  
  Specifies the number of components each concatenation should have.
  
  component-names
  
  Specifies the names of the components that are used. If more than one component is used, separate each component with a space.
  
  For more information, see the following examples and the metainit(1M) man page.

Example 9-3 Creating a Concatenation of One Slice

# metainit d25 1 1 c0t1d0s2
d25: Concat/Stripe is setup

This example shows the creation of a concatenation, d25. This concatenation consists of one stripe (the first number 1) composed of a single slice (the second number 1 in front of the slice). The system verifies that the volume has been set up.

The example shows a concatenation that can safely encapsulate existing data.

Example 9-4 Creating a Concatenation of Four Slices

# metainit d40 4 1 c0t1d0s2 1 c0t2d0s2 1 c0t2d0s3 1 c0t2d1s3
d40: Concat/Stripe is setup

This example shows the creation of a concatenation, d40. The concatenation consists of four stripes (the number 4), each composed of a single slice (the number 1 in front of each slice). The system verifies that the volume has been set up.