A concatenated stripe enables you to expand an existing stripe. For example, if a stripe has run out of space, you can make it into a concatenated stripe, and expand it without having to back up and restore data.
This procedure assumes that you are adding an additional stripe to an existing stripe.
Do not create volumes larger than 1TB if you expect to run the Solaris software with a 32–bit kernel or if you expect to use a version of the Solaris OS prior to Solaris 9 4/03. See Overview of Large Volume Support in Solaris Volume Manager for more information about large volume support in Solaris Volume Manager.
To create a concatenated stripe, 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.
To concatenate existing stripes from the command line, use the following form of the metattach command:
metattach volume-name component-names
volume-name is the name of the volume to expand.
component-names specifies the names of the components that will be used.
# metattach d2 c1t2d0s2 d2: components are attached
# metattach d25 c1t2d0s2 c1t2d1s2 c1t2d3s2 d25: components are attached
This example takes an existing three-way stripe, d25, and concatenates another three-way stripe. Because no interlace value is given for the attached slices, they inherit the interlace value configured for d25. The system verifies that the volume has been set up.
For a UFS, run the growfs command on the volume. See How to Expand a File System.
An application, such as a database, that uses the raw volume must have its own way of recognizing the volume, or of growing the added space.
To prepare a newly created concatenated stripe for a file system, see Chapter 16, Creating UFS, TMPFS, and LOFS File Systems (Tasks), in System Administration Guide: Devices and File Systems.