How to Create a Concatenation (Command Line)

After checking the prerequisites ("Prerequisites for Creating DiskSuite Objects"), and the preliminary information ("Preliminary Information for Creating Stripes and Concatenations"), use the metainit(1M) command to create the concatenation. For more information, refer to the metainit(1M) man page.

Do not use this procedure on an existing file system or data. To concatenate existing data, such as a file system or a database, refer to "How to Expand a Slice Containing Existing Data (Command Line)".

The following examples create concatenations that do not contain any existing data.

Example -- Creating a Concatenation of Two Slices

# metainit d25 2 1 c0t1d0s2 1 c0t2d0s2
d25: Concat/Stripe is setup

This example creates a concatenation, d25, consisting of two "stripes" (the number 2) each made of a single slice (the number 1 in front of each slice). The system verifies that the Concat/Stripe object has been set up.

Example -- Creating a Concatenation of Four Slices

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

This example creates a concatenation called d40 consisting of four "stripes" (the number 4) each made of a single slice (the number 1 in front of each slice). The system verifies that the Concat/Stripe object has been set up.

Where to Go From Here

To prepare the newly created concatenation for a file system, refer to "How to Create a File System on a Metadevice (Command Line)". An application, such as a database, that uses the raw metadevice must have its own way of recognizing the metadevice.